Updated on 2023/11/28

写真a

 
KANEKO, Shigehiko
 
Affiliation
Faculty of Science and Engineering, Global Center for Science and Engineering
Job title
Professor(without tenure)
Degree
工学士 ( 東京大学 )
工学修士 ( 東京大学 )
工学博士 ( 東京大学 )

Research Experience

  • 2019
    -
    Now

    The University of Tokyo   Emeritus Professor

  • 2019
    -
    Now

    Waseda University   Faculty of Science and Engineering   Professor

  • 2003
    -
    2019

    The University of Tokyo The Graduate School of EngineeringDepartment of Mechanical Engineering   Department of Mechanical Engineering, School of Engineering   Professor

  • 1992
    -
    2003

    The University of Tokyo   Department of Mechanical Engineering, School of Engineering   Associate Professor

  • 1989
    -
    1992

    The University of Tokyo   Institute of Engineering Innovation, Faculty of Engineering   Associate Professor

  • 1982
    -
    1989

    The University of Tokyo   Depertment of Marine Mechanical Engineering, Faculty of Engineering   Associate Professor

  • 1985
    -
    1986

    McGill University   Department of Mechanical Engineering, Faculty of Engineering   Visiting Associate Professor

  • 1981
    -
    1982

    The University of Tokyo   Depertment of Marine Mechanical Engineering, Faculty of Engineering   Assistant Professor

▼display all

Education Background

  • 1978.04
    -
    1981.03

    The University of Tokyo   School of Engineering   Doctoral Program, Depetment of Marine Mechanical Engineering  

  • 1976.04
    -
    1978.03

    The University of Tokyo   School of Engineering   Master's Program, Depetment of Marine Mechanical Engineering  

  • 1972.04
    -
    1976.03

    The University of Tokyo   Faculty of Engineering   Department of Mechanical Engineering  

Committee Memberships

  • 2010
    -
    2021

    公益社団法人 発明協会  全国発明表彰選考委員会委員

  • 2019
    -
    2020

    自動車用内燃機関技術研究組合  産学連携企画会議 委員

  • 2016
    -
    2019

    国立研究開発法人 宇宙航空研究開発機構(JAXA)  客員(エンジン騒音低減技術の先行研究)

  • 2015
    -
    2019

    山口県教育委員会  山口県立宇部高等学校スーパーサイエンスハイスクール運営指導委員会委員

  • 2011
    -
    2019

    内閣府  日本学術会議連携会員

  • 2005
    -
    2019

    環境省  中央環境審議会臨時委員

  • 2015
    -
    2018

    一般財団法人 エネルギー総合工学研究所  「小型バイナリー発電研究推進委員会」委員

  • 2015
    -
    2018

    環境省  中央環境審議会専門委員

  • 2013
    -
    2018

    神奈川県教育委員会  神奈川県立厚木高等学校スーパーサイエンスハイスクール運営指導委員

  • 2008
    -
    2018

    独立行政法人 日本学術振興会  科学研究費委員会専門委員

  • 2016
    -
    2017

    一般社団法人 都市ガス振興センター  電気・熱エネルギー高度利用支援事業費補助金評価委員会委員長

  • 2015
    -
    2017

    国立研究開発法人 科学技術振興機構(JST)  研究成果展開事業 研究成果最適展開支援プログラム査読委員

  • 2014
    -
    2017

    国立研究開発法人 科学技術振興機構(JST)  ガバナンスボード・メンバー

  • 2012
    -
    2017

    一般財団法人 エネルギー総合工学研究所  発電用原子炉等安全対策高度化技術開発(プラント安全性高度化)評価委員会委員

  • 2015
    -
    2016

    一般財団法人 エネルギー総合工学研究所  「バイオマス・廃棄物利用高温空気タービン発電システム技術開発検討会」委員

  • 2013
    -
    2016

    一般社団法人 都市ガス振興センター  分散型電源導入促進事業費補助金(うちガスコージェネレーション推進事業)評価委員会委員長

  • 2004
    -
    2016

    山口県教育委員会  山口県スーパーサイエンスハイスクール運営指導委員会委員

  • 2014
    -
    2015

    一般社団法人 火力原子力発電技術協会  「火力発電技術必携改訂部会」に係る委員

  • 2013
    -
    2015

    一般財団法人 日本自動車研究所(JARI)  タイヤ騒音規制検討会座長、検討員

  • 2013
    -
    2015

    一般財団法人 エネルギー総合工学研究所  「高温空気タービン発電システム技術開発検討会」委員

  • 2012
    -
    2015

    国立研究開発法人 科学技術振興機構(JST)  研究成果展開事業 研究成果最適展開支援プログラム分野別評価委員

  • 2013.04
    -
    2014.03

    一般社団法人 日本機械学会  表彰部会長

  • 2012.04
    -
    2014.03

    公益社団法人 自動車技術会  代議員

  • 2013
    -
    2014

    文部科学省  科学技術政策研究所 専門調査員

  • 2010
    -
    2014

    国立研究開発法人 科学技術振興機構(JST)  領域アドバイザー

  • 1997
    -
    2014

    一般社団法人 日本電気協会  技術基準適合評価委員会委員

  • 2012.04
    -
    2013.03

    一般社団法人 日本機械学会  会長

  • 2012
    -
    2013

    国立研究開発法人 科学技術振興機構(JST)  環境・エネルギー研究戦略会議委員/分科会主査

  • 2011
    -
    2013

    一般社団法人 都市ガス振興センター  ガスコージェネレーション推進事業費補助金評価委員会委員長

  • 2011.04
    -
    2012.03

    一般社団法人 日本機械学会  筆頭副会長

  • 2011
    -
    2012

    独立行政法人 日本学術振興会  特別研究員等審査会専門委員

  • 2010
    -
    2012

    一般財団法人 発電設備技術検査協会  「高震度対応型(フリースタンディング方式)PWR使用済燃料ラックの確性試験委員会」委員

  • 2009
    -
    2012

    一般財団法人 日本自動車研究所(JARI)  タイヤ単体騒音対策検討会検討員

  • 2010.04
    -
    2011.03

    一般社団法人 日本機械学会  理事

  • 2010
    -
    2011

    公益社団法人 日本ガスタービン学会  評議員

  • 2009
    -
    2011

    一般社団法人 火力原子力発電技術協会  「BWRタービン改良設計検証委員会」委員

  • 2008
    -
    2011

    公益社団法人 自動車技術会  自動車技術会編集会議教育図書編集委員会委員長

  • 2010
     
     

    IGCT'11  論文委員会委員

  • 2006
    -
    2010

    経済産業省  総合資源エネルギー調査会臨時委員

  • 2005
    -
    2010

    独立行政法人 鉄道建設・運輸施設整備支援機構  基礎的研究審査委員会委員

  • 2002.04
    -
    2009.03

    公益社団法人 自動車技術会  理事

  • 2008
    -
    2009

    一般社団法人 日本技術者教育認定機構  技術者教育プログラム認定・審査のための審査員

  • 2008
    -
    2009

    公益社団法人 日本ガスタービン学会  評議員、理事

  • 2008
    -
    2009

    一般社団法人 日本機械学会  標準・規格センター運営委員会委員長

  • 2004
    -
    2009

    独立行政法人 交通安全環境研究所  自動車排気騒音対策検討会委員

  • 2002.04
    -
    2008.03

    公益社団法人 自動車技術会  総務委員会副委員長

  • 2002.04
    -
    2008.03

    公益社団法人 自動車技術会  学生活動企画会議議長

  • 2007
    -
    2008

    独立行政法人 交通安全環境研究所  新たな定置騒音試験手法検討・調査分科会委員

  • 2004
    -
    2008

    山口県  山口県産業技術センター運営協議会委員

  • 2007
     
     

    国立研究開発法人 新エネルギー・産業技術総合開発機構(NEDO)  産業技術研究助成事業公募に係る提案書の事前書面評価

  • 2006
    -
    2007

    特定非営利活動法人 APEX  「インドネシアにおける、粘土を触媒とするバイオマスの低コスト流動接触分解ガス化技術の共同開発」委員会委員

  • 2006
    -
    2007

    一般社団法人 日本機械学会  標準・規格センター運営委員会副委員長

  • 2005
    -
    2007

    公益社団法人 日本工学会  理事

  • 2004
    -
    2007

    独立行政法人 交通安全環境研究所  自動車単体騒音対策検討・調査分科会委員

  • 2005.04
    -
    2006.03

    一般社団法人 日本機械学会  部門協議会議長

  • 2004.04
    -
    2006.03

    一般社団法人 日本機械学会  理事

  • 2004.04
    -
    2005.03

    一般社団法人 日本機械学会  研究開発推進センター運営委員長

  • 2003
    -
    2005

    国立研究開発法人 新エネルギー・産業技術総合開発機構(NEDO)  技術委員

  • 1997.04
    -
    2004.03

    一般社団法人 日本計算工学会  評議員

  • 2003
    -
    2004

    東京農工大学  「バイオマス粉炭ネットワークの構築による地域再生事業調査」委員

  • 2003
    -
    2004

    社団法人 研究産業・産業技術振興協会 (旧:財団法人 日本産業技術振興協会)  「JIS原案作成(衝撃による加速度センサの校正法)」委員会委員

  • 2002
    -
    2004

    公益財団法人 日本自動車輸送技術協会  「使用過程における改造自動車の騒音対策手法等に関する検討会」委員

  • 2002.04
    -
    2003.03

    一般社団法人 日本機械学会  部門協議会幹事

  • 2003
     
     

    国立研究開発法人 新エネルギー・産業技術総合開発機構(NEDO)  「産業技術実用化開発助成事業」に係わる申請書の事前評価

  • 2001
    -
    2003

    国立研究開発法人 新エネルギー・産業技術総合開発機構(NEDO)  地熱開発技術審議委員会専門委員

  • 2000.04
    -
    2002.03

    公益社団法人 自動車技術会  評議員

  • 2002
     
     

    公益財団法人 日本自動車輸送技術協会  「使用過程における改造自動車の騒音検査手法等に関する検討会」委員

  • 2001
    -
    2002

    一般社団法人 日本機械学会  2002年次大会実行委員会副委員長

  • 2000.04
    -
    2001.03

    一般社団法人日本機械学会  機械力学・計測制御部門 部門長

  • 2001
     
     

    公益財団法人 日本自動車輸送技術協会  使用過程車の騒音調査検討会委員

  • 2001
     
     

    一般社団法人 日本機械学会  機械力学・計測制御部門講演会(D&D2001)実行委員長

  • 1999
    -
    2001

    国立研究開発法人 新エネルギー・産業技術総合開発機構(NEDO)  地熱井掘削時坑底情報検知システム開発委員会委員

  • 1999.04
    -
    2000.03

    一般社団法人 日本機械学会  機械力学・計測制御部門副部門長

  • 1997.04
    -
    1999.03

    一般社団法人 日本機械学会  関東支部商議員

  • 1993.04
    -
    1995.03

    公益社団法人 自動車技術会  会誌編集委員長

  • 1991.04
    -
    1994.03

    一般社団法人 日本機械学会  動力エネルギーシステム部門企画第3委員会委員

  • 1990.04
    -
    1991.03

    一般社団法人 日本機械学会  機械力学・計測制御部門幹事

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Professional Memberships

  •  
     
     

    The Japan Society of Mechanical Engineers

  •  
     
     

    American Society of Mechanical Engineers

  •  
     
     

    Society of Automotive Engineers of Japan, Inc.

  •  
     
     

    Gas Turbine Society of Japan

  •  
     
     

    The Society of Instrument and Control Engineers

  •  
     
     

    The Institute of Noise Control Engineering of Japan

  •  
     
     

    The Japan Institute of Marine Engineering

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Research Areas

  • Mechanics and mechatronics   機械力学 / Mechanics and mechatronics   多体連成力学と制御 / Thermal engineering   小型分散エネルギーシステム / Thermal engineering   マイクロガスタービン / Educational technology   教育工学 / Educational technology   PBL(Project Based Learning)

Research Interests

  • 機械力学・計測制御

  • 流体関連振動

  • 騒音振動制御

  • 分散エネルギーシステム

  • エンジン制御

  • 生体信号応用

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Awards

  • 著述賞

    2020.10   計測自動制御学会   「基礎からわかる自動車エンジンのモデルベースト制御」

    Winner: 金子成彦, 山崎由大, 大森浩充, 平田光男, 水本郁朗, 一柳満久, 松永彰生, 神田智博

  • 名誉会員

    2020.05   自動車技術会  

  • 技術賞

    2019.11   日本燃焼学会   戦略的イノベーション創造プログラム(SIP)「革新的燃焼技術」

  • 論文賞

    2019.08   エネルギー・資源学会   「経済性・環境性・レジリエンス性を考慮した分散型電源機器導入量決定のための多目的最適化ツールの開発」

  • 名誉員

    2019.04   日本機械学会  

  • 論文賞

    2019.04   日本機械学会   「音響的境界条件を考慮した燃焼振動発振周波数の検討」

  • 論文賞

    2019   日本機械学会   「離散化モデルを用いたHCCIエンジンの制御シミュレーション」

  • 技術振興功労者表彰

    2017.10   東京都  

  • フェロー認定

    2017.06   日本工学会  

  • 創立70周年記念表彰

    2017.05   自動車技術会  

  • 機械力学・計測制御部門賞

    2017.04   日本機械学会  

  • Seed Grant

    2017.03   Siebel Energy Institute  

  • 論文賞

    2016.05   日本設計工学会   「体幹生体信号簡易センシングシステムの開発」

  • 第53回燃焼シンポジウム・ベストプレゼンテーション賞

    2015.11   日本燃焼学会   「旋回流中で形成される超過濃火炎」

  • 中国・四国支部優秀論文賞

    2014.03   日本人間工学会   「鞭打ち傷害低減シートフレーム構造の開発」

  • 科学技術分野の文部科学大臣表彰、科学技術賞(開発部門)

    2013.04   文部科学省   「居眠り運転警告装置の開発」

  • 機械力学・計測制御部門 国際賞

    2011.09   日本機械学会  

  • 中国・四国支部優秀論文賞

    2011.03   日本人間工学会   「疲労度モニタリングシステムを有する自動車用シートの開発」

  • 産学官連携功労者表彰、国土交通大臣賞

    2010.06   内閣府、総務省、文科省、他   「居眠り運転警告シート」

  • 中国国家優秀自費留学生奨学金感謝状

    2010.05   中華人民共和国大使館  

  • 技術賞

    2010.05   ターボ機械協会   「ターボ形流体機械による配管内圧力脈動の評価技術」

  • フェロー認定

    2009.06   自動車技術会  

  • 教育賞

    2008.04   日本機械学会   「小型バイオマスエネルギー変換システムを題材としたPBL方式による計測制御教育」

  • 功労賞

    2007.10   日本機械学会  

  • 功労者

    2007.05   自動車技術会  

  • アプリケーションコンテスト2006学生部門最優秀賞

    2006.11   日本ナショナルインスツルメンツ株式会社   「バイオマスガス燃料対応エンジンの計測制御システム」

  • 機械力学・計測制御部門 功績賞

    2005.08   日本機械学会  

  • ACMD BEST STUDENT PAPER AWARD (アジア・マルチボディダイナミクス国際会議最優秀学生論文賞)

    2004.08   日本機械学会   「Nonlinear analysis of sheet flutter based on multibody dynamics」

  • 高城賞

    2003.10   精密工学会   「柔軟媒体搬送技術と学理に関する研究」

  • The Most Interesting Reading

    2003.05   設計工学会   「東京大学におけるPBL教育の一事例」

  • フェロー認定(認定番号30043)

    2003.03   日本機械学会  

  • LABVIEWアカデミックコンテスト特別賞受賞

    2002.11   日本ナショナルインスツルメンツ株式会社   「マイクロガスタービンの監視制御システム」

  • 論文賞

    2002.04   日本機械学会   「振動モードの切替えによる斜張橋斜材ケーブルの制振方法に関する研究」

  • 最優秀ポスター論文賞

    1997.11   アジア太平洋振動会議'97   "Self-excited Sloshing Caused by the Fluid Discharge over the Flexible Plate Weir (Investigation on Higher Order Sloshing Coupled Mode Instability)"

  • 計算力学部門 優秀講演賞

    1997.10   日本機械学会   「移動矩形容器内で発生する浅水波の残留振動制御」

  • 功労者

    1997.05   自動車技術会   「自動車技術会誌編集委員長としての貢献」

  • 機械力学・計測制御部門 パイオニア賞

    1996.08   日本機械学会   「流体関連振動の体系化」

  • 奨励賞

    1986.04   日本機械学会   「液体で部分的に満たされた中空回転軸系の自励振動に関する研究」

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Papers

  • Practical Method for Optimizing Capacities of Private Generators Installed in Hospital Buildings During Power Outages

    Akane Uemichi, Naoki Kaito, Yudai Yamasaki, Shigehiko Kaneko

    Journal of Energy Resources Technology     1 - 13  2022.06

     View Summary

    Abstract

    In stand-alone operations, on-site generators must balance and meet demand at any time for second-by-second fluctuations in output and load demand. However, the previous optimization tool for private generator configuration in hospital buildings did not consider demand sufficiency. Herein, this qualitative electricity problem was solved by proposing a new optimization method that considers the balance of power supply and demand in the stand-alone operation of on-site generators during power outages. As a demand sufficiency condition, a power balance simulator obtained available configurations of private generators that can be operated within the standard alternating current (AC) frequency range of 49-51 Hz. We also compared case study results by applying these constraints to the findings of previous studies. The same case study from a previous paper reported that the optimal amount of photovoltaic systems installed is approximately the upper limit (set at 600 m2 in this calculation) and the optimal solution. In contrast, the optimization results with additional constraints to keep frequency fluctuations within specified limits yielded an optimal value of much less than the previous optimization; one case study showed that the optimal installation amount of photovoltaics was 0 m2. On the other hand, the key equipment in this study was the emergency diesel generator. The emergency generator compensates for power shortages and balances supply and demand under the power outage. The result suggests that case studies with demand-satisfying conditions tend to select equipment configurations that effectively improve the expected power-shortage rate.

    DOI

    Scopus

  • A power balance simulator to examine business continuity in hospital facilities due to power outages in a disaster

    Akane Uemichi, Ryo Oikawa, Yudai Yamasaki, Shigehiko Kaneko

    Journal of Energy Resources Technology     1 - 21  2021.12

     View Summary

    <title>Abstract</title>
    In hospitals, the energy supply is the key to ensuring modern medical care even during power outages due to a disaster. This study qualitatively examined whether the supply-demand balance can be stabilized by the private generator prepared by the hospital building during stand-alone operations under disaster conditions. In the nanogrid of the hospital building, the power quality was examined based on the AC frequency, which characterizes the supply-demand balance. Gas engine generators, emergency diesel generators, photovoltaic panels, and storage batteries were presumed to be the private generators in the hospital building. The output reference values for the emergency diesel and gas engine generators were set using droop control, and the C/D controller enabled synchronized operation. In addition, to keep the AC frequency fluctuation minor, the photovoltaic panels were designed to suppress the output fluctuation using storage batteries. As a result of case studies, the simulator predicts that the frequency fluctuation varies greatly depending on the weather conditions and the fluctuation suppression parameters, even for the same configuration with the same power generation capacity. Therefore, it is preferable to increase the moving average time of the output and reduce the feedback gain of the storage battery to suppress the output fluctuation from the photovoltaics. However, there is a tradeoff between suppressing the output fluctuation and the minimum required storage capacity. Furthermore, since the photovoltaics' output varies with the weather, other private generators' capacity and control parameters significantly impact power quality. The simulator proposed in this study makes it possible to study each hospital's desirable private generator configuration.

    DOI

    Scopus

    1
    Citation
    (Scopus)
  • Extraction of apex beat waveform from acoustic pulse wave by sound sensing system using stochastic resonance

    Etsunori Fujita, Masahiro Horikawa, Yoshika Nobuhiro, Shinichiro Maeda, Shigeyuki Kojima, Yumi Ogura, Kohji Murata, Tomohiko Kisaka, Kazushi Taoda, Shigehiko Kaneko, Masao Yoshizumi

    Scientific Reports   11 ( 1 ) 13711 - 13711  2021.12  [Refereed]  [International journal]

     View Summary

    <title>Abstract</title>With a sound sensing system using stochastic resonance (4SR), it became possible to obtain an acoustic pulse wave (APW)—a waveform created via a mixture of apex beat and heart sound. We examined 50 subjects who were healthy, with no underlying cardiovascular diseases. We could determine boundary frequency (BF) using APW and phonocardiogram signals. APW data was divided into two bands, one from 0.5 Hz to BF, and a second one from BF to 50 Hz. This permitted the extraction of cardiac apex beat (CAB) and cardiac acoustic sound (CAS), respectively. BF could be expressed by a quadratic function of heart rate, and made it possible to collect CAB and CAS in real time. According to heart rate variability analysis, the fluctuation was 1/f, which indicated an efficient cardiac movement when heart rate was 70 to 80/min. In the frequency band between 0.5 Hz and BF, CAB readings collected from the precordial region resembled apex cardiogram data. The waveforms were classified into five types. Therefore, the new 4SR sensing system can be used as a physical diagnostic tool to obtain biological pulse wave data non-invasively and repeatedly over a long period, and it shows promise for broader applications, including AI analysis.

    DOI PubMed

    Scopus

  • Oscillating Frequencies Generated by Combustion Oscillation in a Combustor Tube Fueled by Natural Gas and a Hydrogen Mixture

    Akane Uemichi, Kan Mitani, Yudai Yamasaki, Shigehiko Kaneko

    Journal of Pressure Vessel Technology    2021.09

     View Summary

    <title>Abstract</title>
    From previous combustion oscillation experiments using a simulated gas turbine combustor, oscillation frequencies around 350 Hz were measured in only natural gas-fired, and around 200 and 400 Hz were measured in the case of hydrogen-containing fuel. In this study, the axial gas column vibration mode was assumed, and the method to reproduce the change of oscillating frequency due to the difference of fuel was investigated. In the previous study, the temperature distribution in the combustor was divided into only two regions, and there were problems in terms of parameter estimation for modeling the flame dynamics. Therefore, the transfer matric method that incorporates a linear temperature gradient was employ. Also, the temperature distributions obtained from CFD and experiments were reduced to one dimension to reproduce the difference in combustion characteristics due to the difference in fuel composition; four methods were proposed, the axial representative temperatures. The Nyquist plot method was used to calculate up to 10 combinations of resonant frequency and growth rate simultaneously. And the oscillation frequency was determined in which the resonance frequency with the maximum growth rate was. As a result, the value of the oscillating frequency obtained was different depending on the method of creating the representative temperature distribution.

    DOI

    Scopus

  • Optimization of the Capacities of Private Generators Installed in a Hospital Building Under the Constraint of Demand Sufficiency During Power Outages

    Akane Uemichi, Naoki Kaito, Yudai Yamasaki, Shigehiko Kaneko

    Technical Paper Publication: ASME POWER 2021-62341   39th  2021.06  [Refereed]

    J-GLOBAL

  • Development of a cardiovascular mathematical model considering the thermal environment

    Z. Xia, Y. Ishikawa, S. Kaneko, J. Kusaka

    16th International Conference of Dynamical Systems -Theory and application    2021  [Refereed]

  • Examination of Resonant Frequencies Generated by Combustion Oscillation in a Combustor Fueled by Hydrogen-Natural Gas Mixture and the Upstream Pipe

    Akane Uemichi, Yiufan Lyu, Jin Kusaka, Shigehiko Kaneko

    ASME IMECE2021-68521    2021  [Refereed]

  • Examination of Oscillating Frequencies Generated by Combustion Oscillation Considering Temperature Distribution in a Combustor Tube Fueled by Natural Gas and Hydrogen Mixture

    Akane Uemichi, Kan Mitani, Shigehiko Kaneko, Yudai Yamasaki

    ASME PVP2020-21231, Proceedings of the ASME 2020 ,Pressure Vessels & Piping Conference, PVP2020   4  2020.07  [Refereed]

     View Summary

    A combustion oscillation experiment fueling a mixture of hydrogen and natural gas was performed. The results showed oscillating frequencies of around 350 Hz in the case of the town gas only, whereas oscillating frequencies of around 200 and 400 Hz were observed in the hydrogen-containing fuel case. We hypothesized that the oscillating frequencies shift may occur by changing the temperature-distribution inside the tube, which was caused by different combustion conditions with the fuel mixture. As a result, the possible oscillating frequencies of not only around 350 Hz but also around 200 and 400 Hz were obtained. Although three types of possible oscillating frequencies were obtained in our previous study, more detailed temperature distributions should be considered to clarify the effect of the changing fuel mixture composition. In this paper, representative one-dimensional temperature distributions were formed by the combination of measured and calculated temperature distributions in the combustion tube for the corresponding fuel mixture. To include the detailed temperature distributions, the acoustic network model was divided into enough small elements to express the temperature distributions, where each element was connected by the transfer matrix. Then, the possible oscillating frequencies were calculated, taking account of the influence of the temperature distributions.

    DOI

    Scopus

    1
    Citation
    (Scopus)
  • Recurrent probabilistic neural network-based short-term prediction for acute hypotension and ventricular fibrillation

    Toshio Tsuji, Tomonori Nobukawa, Akihisa Mito, Harutoyo Hirano, Zu Soh, Ryota Inokuchi, Etsunori Fujita, Yumi Ogura, Shigehiko Kaneko, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi

    Nature Scientific Reports   10 ( 1 )  2020.07  [Refereed]

     View Summary

    <title>Abstract</title>In this paper, we propose a novel method for predicting acute clinical deterioration triggered by hypotension, ventricular fibrillation, and an undiagnosed multiple disease condition using biological signals, such as heart rate, RR interval, and blood pressure. Efforts trying to predict such acute clinical deterioration events have received much attention from researchers lately, but most of them are targeted to a single symptom. The distinctive feature of the proposed method is that the occurrence of the event is manifested as a probability by applying a recurrent probabilistic neural network, which is embedded with a hidden Markov model and a Gaussian mixture model. Additionally, its machine learning scheme allows it to learn from the sample data and apply it to a wide range of symptoms. The performance of the proposed method was tested using a dataset provided by Physionet and the University of Tokyo Hospital. The results show that the proposed method has a prediction accuracy of 92.5% for patients with acute hypotension and can predict the occurrence of ventricular fibrillation 5 min before it occurs with an accuracy of 82.5%. In addition, a multiple disease condition can be predicted 7 min before they occur, with an accuracy of over 90%.

    DOI PubMed

    Scopus

    9
    Citation
    (Scopus)
  • Model-based control of premixed diesel combustion, - Evaluation of control system performance under random accelerator operation -

    Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko, Seiya Fujii, Ikuro Mizumoto, Tomofumi Hayashi, Mitsuo Hirata

    Transsactions of Society of Instrument and Control Engineers   56 ( 3 ) 176 - 186  2020.03  [Refereed]

  • Performance Evaluation of Model-Based Controller with On-board Polytropic Index Prediction Model for Compression Stroke under Transient Driving Condition of CI Engine

    Ichiyanagi Mitsuhisa, Shindo Ryota, Otsubo Koki, Kim Jihoon, Yamasaki Yudai, Kaneko Shigehiko, Yilmaz Emir, Suzuki Takashi

    Transactions of Society of Automotive Engineers of Japan   51 ( 1 ) 60 - 65  2020  [Refereed]

     View Summary

    In the conventional map control, the number of calibration becomes large to make the map for transient driving conditions, which leads to extend the development period and increase the development cost. To overcome these shortcomings, the development of the model-based control is required. The previous model-based feedforward (FF) controller for diesel engines used several empirical equations based on experiments to predict the polytropic index for the compression stroke considering heat losses. To reduce the number of experiments, the authors developed the physical model for predicting the polytropic index (referred to as the present model) and implemented on the above FF controller. Under the transient driving conditions, it was found that the FF controller with the present model could predict the polytropic index with an average error of 0.31% and the indicated mean effective pressure (IMEP) with the maximum difference of 6.4 kPa, which shows that the present model can be used in place of the empirical equation.

    DOI CiNii

  • 災害拠点病院を対象とした災害時事業継続性向上のための分散型電源導入量の最適化 (特集 エネルギーミックスとOR)

    上道 茜, 山﨑 由大, 金子 成彦

    オペレーションズ・リサーチ = Communications of the Operations Research Society of Japan : 経営の科学   65 ( 1 ) 41 - 48  2020.01  [Refereed]

    CiNii

  • Multiple-input multiple-output control of diesel combustion using a control-oriented model

    Yudai Yamasaki, Ryosuke Ikemura, Motoki Takahashi, Shigehiko Kaneko, Akane Uemichi

    International Journal of Engine Research   20 ( 10 ) 1005 - 1016  2019.12  [Refereed]

     View Summary

    In this study, a multiple-input multiple-output feedforward controller for use with multiple-point fuel injection systems is applied to a diesel engine using an original control-oriented model. The target-tracking performance of this multiple-input multiple-output feedforward controller was then tested in terms of how well the controller adjusts the fuel delivery ratios to the pilot injection, pre-injection, main fuel injection, and the main fuel injection timing, and controls the in-cylinder peak pressure and its timing. Control experiments are conducted at different engine outputs and speeds while changing the targets of the in-cylinder peak pressure and its timing. The controller is able to track the varying targets within an acceptable error included in the original model. The calculation time, which is almost double that of a single-input single-output controller, is sufficiently fast to derive the applicable inputs.

    DOI

    Scopus

    8
    Citation
    (Scopus)
  • Unconstrained Vital Sign Monitoring System Using an Aortic Pulse Wave Sensor

    Naoki Hagiyama, Harutoyo Hirano, Akihisa Mito, Zu Soh, Etsunori Fujita, Yumi Ogura, Shigehiko Kaneko, Ryuji Nakamura, Noboru Saeki, Masashi Kawamoto, Masao Yoshizumi, Toshio Tsuji

    Scientific Reports   9 ( 1 )  2019.12  [Refereed]

     View Summary

    <title>Abstract</title>This paper proposes a novel unconstrained monitoring system that measures heart and respiratory rates and evaluates autonomic nervous activity based on heart rate variability. The proposed system measures the aortic pulse waves (APWs) of a patient via an APW sensor that comprises a single microphone integrated into a mattress. Vital signs (i.e., heart rate, respiratory rate) and autonomic nervous activity were analyzed using the measured APWs. In an experiment with supine and seated participants, vital signs calculated by the proposed system were compared with vital signs measured with commercial devices, and we obtained the correlations of <italic>r</italic> &gt; 0.8 for the heart rates, <italic>r</italic> &gt; 0.7 for the respiratory rates, and <italic>r</italic> &gt; 0.8 for the heart rate variability indices. These results indicate that the proposed system can produce accurate vital sign measurements. In addition, we performed the experiment of image stimulus presentation and explored the relationships between the self-reported psychological states evoked by the stimulus and the measured vital signs. The results indicated that vital signs reflect psychological states. In conclusion, the proposed system demonstrated its ability to monitor health conditions by actions as simple as sitting or lying on the APW sensor.

    DOI

    Scopus

    5
    Citation
    (Scopus)
  • Adaptive Output Feedback Control of Premixed Diesel Combustion using a Discrete Dynamics Model

    Seiya Fujii, Ikuro Mizumoto, Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko

    SAE Technical Paper Series    2019.08  [Refereed]

    DOI

    Scopus

  • Design of Combustion Control System Based on Adaptive Output Feedback for Premixed Diesel Combustion

    Seiya Fujii, Ikuro Mizumoto, Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko

    Proceedings of 9th IFAC International Symposium on Advances in Automotive Control     165 - 170  2019.06  [Refereed]

  • Model-based control system for advanced diesel combustion

    Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko, Seiya Fujii, Ikuro Mizumoto, Tomofumi Hayashi, Teruhiko Asahi, Mitsuo Hirata

    Proceedings of 9th IFAC International Symposium on Advances in Automotive Control     171 - 177  2019.06  [Refereed]

  • Evaluation of Model Based Control Systems for Multi-Stage Heat Release of Advanced Diesel Combustion

    Yudai Yamasaki, Motoki Takahashi, Shigehiko Kaneko, Seiya Fujii, Ikuro Mizumoto, Tomofumi Hayashi, Teruhiko Asashi, Mitsuo Hirata, Makoto Eguchi, Hiromitsu Ohmori

    Symposium for Combustion Control    2019.06  [Refereed]

  • Simple combustion model for a diesel engine with multiple fuel injections

    Yudai YAMASAKI, Ryosuke IKEMURA, Fumiya SHIMIZU, Shigehiko KANEKO

    International Journal of Engine Research   Vol.20 ( issue.2 ) 167 - 180  2019.02  [Refereed]

    Authorship:Last author

    DOI

    Scopus

    23
    Citation
    (Scopus)
  • Multi-objective optimization to determine installation capacity of distributed power generation equipment considering energy-resilience against disasters

    Akane Uemichi, Masaaki Yagi, Ryo Oikawa, Yudai Yamasaki, Shigehiko Kaneko

    Energy Procedia   158   6538 - 6543  2019  [Refereed]

     View Summary

    In 2017, the Mistry of Health, Labor, and Welfare in Japan added a requirement for domestic disaster base hospitals to install electric power generation equipment with a generation capacity at least 60% of usual demand for securing business continuity. In this study, we developed a multi-objective optimization tool for assisting the determination of the capacity of distributed generation equipment and contract plans considering energy-resiliency after a disaster. The selected objective functions are a total cost representing economy and environment, and an expected value of power shortage ratio after the catastrophe representing energy-resiliency. As a result, our developed tool could obtain the Pareto-optimal solutions for various size hospitals on the parameter plane of the two objective functions. As well as total costs, for all optimal solutions, the expected value of power shortage ratio under disaster situation resulted in less than 40% suggesting that the national requirement standard is satisfied. Then, the cluster analysis was carried out to grasp the tendency of optimal solutions. From the analysis of average value for each cluster, it is shown that the optimal introductory capacities of gas engine generators and storage batteries couple through the outage probabilities of gas supply. Furthermore, the optimal capacity of photovoltaic is much larger than the one assumed to install on the estimated rooftop area of the hospital building, which suggests that hospital can take an option to introduce more photovoltaics to an adjacent area if possible.

    DOI

    Scopus

    13
    Citation
    (Scopus)
  • 小脳演算モデルコントローラを用いたフィードバック誤差学習によるディーゼルエンジンの燃焼制御

    江口誠, 大森浩充, 高橋幹, 山崎由大, 金子成彦

    自動車技術会論文集   Vol.50 ( No.1 )  2019.01  [Refereed]

    Authorship:Last author

  • 離散化燃焼モデルを用いたディーゼルエンジン吸排気系のモデル構築とフィードフォワード制御

    林知史, 小泉純, 平田光男, 高橋幹, 山崎由大, 金子成彦

    自動車技術会論文集   Vol.50 ( No.2 ) 291 - 296  2019  [Refereed]

    Authorship:Last author

  • Combination of multiple combustion modes in a gas engine system using dedicated EGR

    竹内智顕, 山崎由大, 上道茜, 金子成彦

    日本機械学会論文集(Web)   85 ( 874 ) 18-00354 - 18-00354  2019  [Refereed]

    Authorship:Last author

    J-GLOBAL

  • Model-based Control of Premixed Combustion in Diesel Engine with 4-stage Fuel Injections

    Motoki TAKAHASHI, Yudai YAMASAKI, Shigehiko KANEKO

    Transactions of the Society of Instrument and Control Engineers   55 ( 3 ) 226 - 234  2019

    DOI

  • Planning of installation of distributed energy equipment in a disaster-base hospital to enhance energy resilience and its verification using simulations

    Uemichi, A, Oikawa, R, Kaito, N, Yamasaki, Y. & Kaneko

    ECOS 2019 - Proceedings of the 32nd International Conference on Efficiency     877 - 888  2019  [Refereed]

     View Summary

    The present study aims to propose a framework for the installation of distributed energy equipment, including cogeneration systems, photovoltaics, and storage batteries as well as emergency power generators, to enhance business continuity in a disaster-base hospital. Two types of simulation tools were developed: a planning tool and a verification tool. First, as a planning tool, a multi-objective optimization simulation with two objective functions was developed to determine the required amount of energy equipment. The first function was used to calculate the expected value of the ratio of electric power shortage to energy demand after disasters using an energy resilience risk index, and the second was used to calculate the total cost using an economic indicator. The optimal solutions formed the Pareto solution group. Next, the obtained solutions were verified to determine whether the energy demand in a disaster-base hospital would be satisfied by the energy supply of the installed distributed power generation equipment in case of disaster. For this purpose, an energy system simulator was developed as a verification tool. This simulator consisted of models of every piece of distributed energy generation equipment. Electric power generated by the gas engine generators of the cogeneration system, diesel engine emergency generators, and storage batteries is supplied to medical equipment as well as general equipment such as lighting and elevators. The installation of storage batteries to suppress fluctuations in the electricity supply was contemplated through the use of photovoltaics. The balance between the energy demand and supply was evaluated based on the frequencies of the alternating currents in the simulator. Finally, several case studies for different types of hospitals were examined.

  • 4段噴射を用いた予混合的なディーゼル燃焼のモデルベースト制御

    高橋幹, 山崎由大, 金子成彦

    高橋幹,山崎由大,金子成彦   55 ( 3 ) 226 - 234  2019  [Refereed]

  • ディーゼル機関におけるオンボード用圧縮ポリトロープ指数予測モデルを実装したモデルベースト制御器の定常運転性能評価

    一柳満久, 大坪弘宜, 定地隼生, 進藤良太, 高橋幹, 山崎由大, 金子成彦, 鈴木隆

    自動車技術会論文集   50 ( 6 ) 1508 - 1514  2019  [Refereed]

     View Summary

    本稿ではMAP作成の手間を自動化し, かつ環境変化に対するロバスト性を有する制御系設計法として, フィードバック誤差学習を用いたモデルベースト制御を提案する. また, 制御器の学習機構として小脳演算モデルコントローラを用いることで計算負荷を低減することができる. そして, 本手法の有効性を実機試験にて検証する.

  • 軽油の多段噴射デュアルフューエルエンジンにおける燃焼および排気特性

    市橋弘光, 山﨑由大, 金子成彦

    日本機械学会論文集   85 ( 874 )  2019  [Refereed]

  • Simple Adaptive Control for a Diesel Engine Air Path System

    Makoto Eguchi, Xinyu Zhang, Daichi Sakai, Hiromitsu Ohmori, Tomofumi Hayashi, Mitsuo Hirata, Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko

       2019  [Refereed]

  • Model-based control system for a diesel engine

    Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko

    IFAC 9th AAC    2019  [Refereed]

  • A Nonlinear Feedforward Controller Design Taking Account of Dynamics of Turbocharger and Manifolds for Diesel Engine Air-Path System

    Mitsuo Hirata, Tomofumi Hayashi, Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko

    IFAC-PapersOnLine   52 ( 5 ) 341 - 346  2019  [Refereed]

    DOI

    Scopus

    6
    Citation
    (Scopus)
  • Diesel Engine Conbustion Control with Onboard Calibration by Using Feedbuck Error Learning

    Makoto Eguchi, Naoki Fukuda, Hiromitsu Ohmori, Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko

    JSAE20199037/SAE2019-01-2318    2019  [Refereed]

  • Online Automatic Adaptation for Model-based Control of Diesel Engine

    Jianan Cao, Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko

    JSAE20199184/SAE2019-01-2320    2019  [Refereed]

  • Two-Degree-of-Freedom Controller Design for Diesel Engine Airpath System Considering Dynamics of Turbocharger and Manifolds

    JSAE20199260/SAE2019-01-2321    2019  [Refereed]

  • ディーゼルエンジン制御モデルにおける燃料噴射段数の拡張

    高橋幹, 酒向優太朗, 山崎由大, 金子成彦

    自動車技術会論文集   Vol.49 ( No.6 )  2018.11  [Refereed]

    Authorship:Last author

  • 2自由度適応出力フィードバック制御に基づく3段噴射 ディーゼルエンジン燃焼制御と定常試験による検証

    藤井聖也, 高橋幹, 水本郁朗, 山崎由大, 金子成彦

    自動車技術会論文集   49 ( 6 ) 1167 - 1174  2018.11  [Refereed]

    Authorship:Last author

  • 適応出力フィードバックに基づく3 段噴射ディーゼルエンジンの燃焼制御とそのある走行モード上での評価

    藤井聖也, 水本郁朗, 山崎由大, 金子成彦

    自動車技術会論文集   49 ( 5 ) 920 - 925  2018.09  [Refereed]

    Authorship:Last author

  • 離散化モデルを用いたHCCIエンジンの制御シミュレーション

    林卓哉, 山崎由大, 金子成彦, 疋田孝幸, 水野沙織, 藤井拓磨

    日本機械学会論文集   84 ( 860 ) 17 - 0325  2018.04  [Refereed]

  • Model-based control of diesel engines with multiple fuel injections

    Yudai Yamasaki, Ryosuke Ikemura, Shigehiko Kaneko

    International Journal of Engine Research   19 ( 2 ) 257 - 265  2018.02  [Refereed]

    Authorship:Last author

     View Summary

    We developed a feed-forward controller for a conventional diesel combustion engine with triple fuel injection and experimentally evaluated its performance. A combustion model that discretizes an engine cycle into a number of representative points to achieve a light calculation load is embedded into the controller
    this model predicts the in-cylinder gas-pressure-peak timing with information about the operating condition obtained from the engine control unit. The controller calculates the optimal main-fuel-injection timing to control the in-cylinder gas-pressure peak using the prediction result as a controller with a single input and output. The controller’s performance was evaluated by experiments using a four-cylinder diesel engine under changing the target value of the in-cylinder gas-pressure-peak timing during a target-following test and the performance was also evaluated under changing the exhaust gas recirculation ratio at the constant target value of the in-cylinder gas-pressure-peak timing for the disturbance-response test. It was found that the controller could calculate the optimal main-injection timing over a cycle and maintain the targeted in-cylinder gas-pressure-peak timing even when the target value or exhaust gas recirculation changed. The combustion model was also shown to be fast enough at predicting diesel combustion for onboard control.

    DOI

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    15
    Citation
    (Scopus)
  • Study on Model-Based Control for HCCI engine

    Takayuki Hikita, Saori Mizuno, Takuma Fujii, Yudai Yamasaki, Takuya Hayashi, Shigehiko Kaneko

       2018  [Refereed]

  • Model-Based Control System for Air Path and Premixed Combustion of Diesel Engine

    Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko, Jun Koizumi, Tomofumi Hayashi, Mitsuo Hirata

       2018  [Refereed]

  • AI-フィードフォワードを有するフィードバック誤差学習による ディーゼルエンジン燃焼制御

    江口誠, 喬夢醒, 大森浩充, 山崎由大, 金子成彦

    自動車技術会論文集   49 ( 2 ) 230 - 234  2018  [Refereed]

    Authorship:Last author

  • 過渡運転試験による燃焼制御モデルを用いた ディーゼルエンジンの制御システム評価

    山崎由大, 高橋幹, 酒向優太朗, 金子成彦

    自動車技術会論文集   49 ( 3 ) 549 - 555  2018  [Refereed]

    Authorship:Last author

  • Development of Multi-Objective Optimization Tool to Determine Amount of Distributed Power Generation Equipment Considering Economy, Environment, and Resiliency

    上道茜, 八木正彰, 山崎由大, 金子成彦

    エネルギー・資源学会論文誌(Web)   39 ( 6 ) 6 - 18  2018  [Refereed]

    Authorship:Last author

    J-GLOBAL

  • ターボチャージャベアリング部で発生する摩擦新卒予測のための数理モデルの構築

    坂上聡, 上道茜, 山﨑由大, 金子成彦, 窪山達也, 森吉泰生

    日本機械学会論文集   84 ( 965 ) 18 - 00127  2018  [Refereed]

  • Two-Degree-of-Freedom H∞ Control of Diesel Engine Air Parh System with Nonlinear Feedforward Controller

    Mitsuo Hirata, Tomofumi Hayashi, Jun Koizumi, Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko

    IFAC conference    2018  [Refereed]

    Authorship:Last author

  • 天然ガス利用デュアルフューエルエンジンにおける軽油多段噴射の燃焼特性

    酒向優太朗, 山崎由大, 上道茜, 金子成彦

    日本機械学会論文集   84 ( 859 ) 17 - 00381  2018  [Refereed]

    Authorship:Last author

  • 多段噴射ディーゼルエンジンの燃焼制御へのH∞制御理論の適用

    平田光男, 鈴木雅康, 山崎由大, 金子成彦

    自動車技術会論文集   49 ( 2 ) 224 - 229  2018  [Refereed]

    Authorship:Last author

  • Examination of oscillation frequency for combustion oscillation considering acoustic boundary conditions

    上道茜, 金築一平, 金子成彦

    日本機械学会論文集(Web)   84 ( 861 ) 2017 - 00514  2018  [Refereed]

    Authorship:Last author

    J-GLOBAL

  • Evaluation of damping effect of perforated plate on the first resonant wave height of liquid sloshing under pitching excitation utilized by CFD

    新木悠斗, 上道茜, 山崎由大, 金子成彦

    日本機械学会論文集(Web)   84 ( 861 ) 17 - 00507  2018  [Refereed]

    Authorship:Last author

    J-GLOBAL

  • System design to reduce disaster risks by installing distributed power resources

    Akane Uemichi, Masaaki Yagi, Ryo Oikawa, Yudai Yamasaki, Shigehiko Kaneko

      1 ( 1 ) 49 - 56  2018  [Refereed]

    Authorship:Last author

  • Dynamic Model for Free-tanding Fuel Racks Under Seismic Excitation Considering Planar and Nonslide Rocking Motion

    Kazuya Sakamoto, Ryosuke Kan, Akihiro Takai, Shigehiko Kaneko

    JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS   12 ( 6 )  2017.11  [Refereed]

     View Summary

    A free-standing (FS) rack is a type of a spent nuclear fuel rack, which is just placed on a floor of a pool. For this characteristic, seismic loads can be reduced by fluid force and friction force, but a collision between a rack and another rack or a wall must be avoided. Therefore, it is necessary for designing an FS rack to figure out how it moves under seismic excitation. In this research, a dynamic model of an FS rack is developed considering seismic inertial force, friction force, and fluid force. This model consists of two submodels: a translation model, which simulates planar translational and rotational motion, and a rocking model, which simulates nonslide rocking motion. First, simulations with sinusoidal inertial force were conducted, changing values of a friction coefficient. Next, to validate this dynamic model, a miniature experiment was conducted. Finally, the model is applied to a real-size FS rack and actually observed seismic acceleration. It is found that translational movement of a rack varies depending on the value of friction coefficient in the simulation with sinusoidal and actual acceleration. Also, simulation results are similar to the experimental results in the aspects of translational and rocking motion provided friction coefficient is selected properly. Through this research, the knowledge is acquired that friction force plays a significant role in a motion of FS rack so that estimating and controlling a friction coefficient is important in designing an FS rack.

    DOI

    Scopus

    3
    Citation
    (Scopus)
  • Engine control system using city gas and biomass gas mixture

    Shigehiko Kaneko

    Energy 7, Aug.16, 2017, Manchester    2017.08

  • Combustion oscillation characteristics of hydrogen-rich fuel

    A. Uemichi, I. Kanetsuki, S.Kaneko

    Proc. of FSSI 2017, Springer(March 31.2017 submitted)     371 - 376  2017.08  [Refereed]

     View Summary

    In this study, combustion oscillation characteristics of hydrogen-rich fuel were investigated. The experimental results fueled by mixture of natural gas and hydrogen show that hydrogen-rich combustion influences on the oscillating fre-quencies. In the case of only natural gas, the single oscillating frequency around 350 Hz is obtained, and in the hydrogen-containing fuel case, the double oscillating frequencies around 200 and 400 Hz are measured. However, the latter oscillating frequencies could not be derived from the one-dimensional acoustic analysis. Therefore, to figure out these frequencies, the acoustic impedance was measured experimentally and the oscillating frequencies were re-calculated using the measured acoustic impedance as the acoustic boundary conditions. As a result, the 200, 350, and 400 Hz frequencies could be expressed using the acoustic impedances.

    DOI

    Scopus

  • Sloshing in a Horizontal Cylindrical Tank Subjected to Pitching Excitation and Damping Effects by Perforated Plates

    Hidemitsu Sakai, Akane Uemichi, Akihiro Takai, Yudai Yamasaki, Shigehiko Kaneko

    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME   139 ( 4 ) 041302-1 - 9  2017.08  [Refereed]

     View Summary

    Natural gas is relatively clean, and its demand is currently increasing. In most cases, gas fields are located at the bottom of the sea. Therefore, floating production, storage, and offloading (FPSO) systems are now attracting considerable attention. This paper is related to the dynamical design of a FPSO system; in particular, it focuses on the free surface elevation induced by the waves in a horizontal cylindrical and axisymmetric liquid vessel with end caps. In this study, the theory of the wave height and resonant frequency in a horizontal cylinder subjected to pitching via external excitation is developed. Then, a theory taking into account the effect of perforated plates is introduced. A special discussion is made with regard to the number and location of the perforated plates and the effect of a partial opening in a perforated plate on the damping. Finally, the experimental data of resonant wave heights up to the third mode are shown in comparison to the theoretically derived results.

    DOI

    Scopus

    8
    Citation
    (Scopus)
  • 災害時の事業継続性を考慮したコージェネレーション機器導入計画最適化手法の提案

    長尾浩志, 上道茜, 八木正彰, 山崎由大, 金子成彦, 坂東茂

    エネルギー・資源   38 ( 4 ) 224 - 23  2017.07

     View Summary

    After the 2011 Great East Japan Earthquake, a business continuity planning, i.e., BCP, in a disaster case is attracting attentions in Japan. However, when a customer, i.e. a building owner actually would like to introduce energy generation devices such as a cogeneration equipment, there is no guideline to decide suitable device capacity based on the evaluation of economic efficiency and BCP as well as energy saving performance. This study proposes a method to optimize a plan for installing cogeneration equipment considering BCP under disaster risks simultaneously. We develop a simulation tool to decide an optimized planning of energy-generation equipment configuration. With this simulation tool, we performed case studies for different business cases such as a hospital and a hotel. The simulation results showed that the optimized installing plan can be an over-specification of equipment configuration under the assumption of disaster risks, which is never chosen under conventional definition. Then, we examined the economic performance of an energy generation equipment configuration by calculating a net present value from the viewpoint of BCP. This examination can give judgments of investment-return possibility and suitable subsidy price.

    DOI CiNii J-GLOBAL

  • Study on a Control-Oriented Model of Boosted HCCI Engine and Control Simulation

    Takuya Hayashi, Yudai Yamasaki, Masaki Miyoshi, Shigehiko Kaneko, Takayuki Hikita, Saori Mizuno, Takuma Fujii

    COMODIA2017, (July 25-28,2017) Okayama    2017.07  [Refereed]

  • NOx prediction model for diesel engine control

    Motoki Takahashi, Masato Miura, Ryousuke Ikemura, Yudai Yamasaki, Akane Uemichi, Shigehiko Kaneko

    COMODIA2017, (July 25-28,2017) Okayama    2017.07  [Refereed]

     View Summary

    Recently, model-based control applicable for diesel engines is attracting attention as an engine control methodology. Discrete combustion models have been developed as control-oriented models expressing diesel combustion, where these models can predict the combustion state, however, NOx emission is not considered. In this paper, the NOx emission model for the discrete model is proposed, and its accuracy was evaluated by comparing with the experiment. In this model, the NOx formation period is defined as the period from the ignition timing to the timing defined by the temperature after combustion. The local reaction temperature of the previous model is modified to consider the effect of the amount of injected fuel. The gas concentrations used in the NOx model are obtained from the discrete combustion model and the amount of NOx emission is calculated by using the Arrhenius equation. In the model, the local reaction temperature under the multiple fuel injection is calculated considering spread of heat released by pre combustion and increment of lean mixture. Then, the prediction accuracy of the NOx model was evaluated by comparison with the experimental result showing that the proposed model can predict NOx emissions within 10% error. Moreover, from the viewpoint of the calculation time, this model can predict both engine output and NOx emission within the period of one cycle of the engine, therefore, it can be applicable to real-time engine control applications.

    DOI

    Scopus

  • Prediction model of mechanical loss in turbocharger

    Satoshi Sakagami, Akane Uemichi, Yudai Yamasaki, Shigehiko Kaneko

    COMODIA2017, (July 25-28, 2017) Okayama    2017.07  [Refereed]

     View Summary

    Recently, internal combustion (IC) engine systems for automobiles have been required to improve the whole efficiency in a real world. Above all, the turbocharged engine system is attracting attentions. Therefore, it is quite important to consider efficiencies of machine elements such as a turbocharger as well as those related to the combustion process. However, the methods for estimating thermal and mechanical losses of the turbocharger separately and precisely have not been established. In this research, to propose mathematical model capable of predicting mechanical loss induced in a turbocharger, we started with deriving governing equation of the friction loss by a journal bearing and a thrust bearing under operating condition and finally compared with reported data to validate the proposed method. In addition, sensitivity analysis based on the proposed model is performed to investigate the influence of individual physical factors such as rotational speed of the turbocharger, lubrication oil temperature, flow rate and the thrust force on the friction work.

    DOI

    Scopus

  • 災害時の事業継続性を考慮したコジェネレーション機器導入計画最適化手法の提案

    長尾浩志, 上道茜, 八木正彰, 山崎由大, 金子成彦, 坂東茂

    エネルギー資源学会論文集   Vol.38 ( No.4 ) 10 - 23  2017.07  [Refereed]

  • Adaptive Output Feedback Based Combustion Control for Diesel Engine with Multi Fuel Injection

    Ikuro Mizumoto, Seiya Fujii, Yudai Yamasaki, Ryosuke Ikemura, Shigehiko Kaneko

    Proceedings of Symposium for Combustion Control 2017     187 - 194  2017.06  [Refereed]

  • Perspective of Technology Development for Improving Tire NVH and Accompanying Performances

    Masao Ishihama, Yukio Nakashima, Toru Yamazaki, Shigehiko Kaneko, Tetsunori Haraguchi, Hitoshi Fujita, Mitsuya Nihei, Isamu Inoue, Jun Makino, Hiroyuki Houzu, Mitsuyuki Wakii

    自動車技術会春季大会原稿S171071    2017.05

  • Proposal of a decision scheme for installing a cogeneration system considering disaster risks

    Hiroshi Nagao, Akane Uemichi, Yudai Yamasaki, Shigehiko Kaneko

    APPLIED THERMAL ENGINEERING   114   1414 - 1423  2017.03  [Refereed]

     View Summary

    This paper proposes a scheme, called the disaster-risk-weighted damage inequality, for a customer to perform introductory planning for a distributed generation system considering business continuity planning in a disaster case. To calculate this inequality, the relevant disaster risks are surveyed and system operating simulations for target buildings such as a hotel, a hospital, a large-scale office, and a collective housing building are performed by solving a mixed integer linear programming problem under the assumption that a cogeneration system is installed as a distributed generation system. Next, we determined the probabilities of a disaster occurrence and business interruption due to a disaster, the initial cost of the equipment, the running cost, and the reduction in running cost due to a cogeneration system installation. The cogeneration system was found to effectively reduce the running cost. Finally, the suggested inequality is calculated and determined whether it is satisfied. The result Showed that cogeneration system installation very effectively reduces the running cost for a hotel, a hospital, and a large-scale office, compared to the tolerable amount of loss that is preliminarily determined by a customer. (C) 2016 Elsevier Ltd. All rights reserved.

    DOI

    Scopus

    10
    Citation
    (Scopus)
  • MIMO Control of a Diesel Engine Using a Control-Oriented Model

    Y. Yamasaki, R. Ikemura, M. Takahashi, S. Kaneko, A. Uemichi

    SCC 2017, Aachen, Germany    2017

  • Construction of dynamic model of planar and rocking motion for free standing spent fuel rack

    Kazuya Sakamoto, Ryosuke Kan, Akihiro Takai, Shigehiko Kaneko

    American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP   4  2017  [Refereed]

     View Summary

    Spent nuclear fuel is settled in racks and stored in spent fuel pool. A free standing rack (FS rack) is a type of a spent fuel rack, which is not fixed to walls unlike conventional ones. For this characteristic, movement of an FS rack during an earthquake can be reduced by fluid force and friction force. However, collision between a rack and another rack or a wall must be avoided. Therefore, it is necessary for designing an FS rack to figure out how it moves under seismic excitation. In this research, a dynamic model of FS racks is constructed considering seismic inertial force, friction force and fluid force. This model consists of two sub-models: translation model, which simulates planar translational and rotational motion
    and rocking model, which simulates rocking motion. Moreover, we developed two kinds of rocking model: slide-rocking considered model, which considers the equations of both slide-rocking motion and non-slide-rocking motion
    and non-slide-rocking model, which considers only the equation of non-slide-rocking motion. Then, simulations with sinusoidal inertial force input were conducted, changing values of friction coefficient. To validate this dynamic model, a miniature experiment was conducted. It is found that the non-slide-rocking model simulates movement of an FS rack well and better than the slide-rocking considered model in the aspect of translational and rocking movement. However, planar rotational movement is not simulated well with either model. Through this research, the knowledge is acquired that friction force plays a significant role in motion of an FS rack so that estimating and controlling friction coefficient is important in designing an FS rack.

    DOI

    Scopus

    1
    Citation
    (Scopus)
  • Combustion oscillation in gas turbine combustor for fuel mixture of hydrogen and natural gas

    Akane Uemichi, Ippei Kanetsuki, Shigehiko Kaneko

    American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP   4  2017  [Refereed]

     View Summary

    Hydrogen as one of energy sources is attracting attentions because of CO2 free combustion that can deaccelerate global warming. Recently, hydrogen enriched combustion technology for gas turbine combustors is developing, in which hydrogen is added to natural gas. However, hydrogen-rich combustion has different combustion characteristics from conventional natural gas combustion. In particular, such variety of combustion characteristics may lead to combustion oscillation, which may cause fatigue breaking of structural elements due to resonance with components. Combustion oscillation is mainly induced by thermo-acoustics interaction. Therefore, it is necessary to investigate characteristics of hydrogen-enriched combustion sufficiently. To understand combustion characteristics of enriched hydrogen mixture, combustion experiments were performed for various ratios of hydrogen in the fuel mixture. In this study, a mock-up combustor of a micro gas turbine combustor is used, where a radial swirler is installed to mix fuel and air and stabilize the flame. To grasp the characteristics of combustion oscillation, pressure fluctuation was detected by a pressure sensor installed at the bottom of the combustor. It is found that larger hydrogen ratio in the fuel mixture extends the range of large pressure fluctuation region expressed by the root-mean-square value. Succeedingly, more detail oscillation characteristics were examined by FFT analysis. In the case of natural gas 100%, the oscillation of around 350 Hz was detected. On the other hand, in the case of the hydrogen-contained fuel mixture, two kinds of oscillating frequencies around 200 and 400 Hz were detected. To examine the cause of the difference among these three oscillating frequencies, a simplified stepped tube model with closed- and open-end is considered. For further investigation, acoustic boundary conditions were measured by acoustic impedance method. Moreover, to obtain the representative flame positions and temperature in the combustor, CFD calculations were performed, and the measured acoustic impedance was combined with the CFD results. Then, parametric studies with various thermo-pressure interaction index were performed to obtain the effect of thermo-pressure interaction index on natural frequencies and gains using the Nyquist plot. As a result, it was found that the self-excited oscillation limit is sensitive to the value of thermo-pressure interaction index.

    DOI

    Scopus

    4
    Citation
    (Scopus)
  • Construction of dynamic model of planar and rocking motion for free standing spent fuel rack

    Kazuya Sakamoto, Ryosuke Kan, Akihiro Takai, Shigehiko Kaneko

    American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP   4   427 - 434  2017  [Refereed]

     View Summary

    Spent nuclear fuel is settled in racks and stored in spent fuel pool. A free standing rack (FS rack) is a type of a spent fuel rack, which is not fixed to walls unlike conventional ones. For this characteristic, movement of an FS rack during an earthquake can be reduced by fluid force and friction force. However, collision between a rack and another rack or a wall must be avoided. Therefore, it is necessary for designing an FS rack to figure out how it moves under seismic excitation. In this research, a dynamic model of FS racks is constructed considering seismic inertial force, friction force and fluid force. This model consists of two sub-models: translation model, which simulates planar translational and rotational motion
    and rocking model, which simulates rocking motion. Moreover, we developed two kinds of rocking model: slide-rocking considered model, which considers the equations of both slide-rocking motion and non-slide-rocking motion
    and non-slide-rocking model, which considers only the equation of non-slide-rocking motion. Then, simulations with sinusoidal inertial force input were conducted, changing values of friction coefficient. To validate this dynamic model, a miniature experiment was conducted. It is found that the non-slide-rocking model simulates movement of an FS rack well and better than the slide-rocking considered model in the aspect of translational and rocking movement. However, planar rotational movement is not simulated well with either model. Through this research, the knowledge is acquired that friction force plays a significant role in motion of an FS rack so that estimating and controlling friction coefficient is important in designing an FS rack.

    DOI

    Scopus

    1
    Citation
    (Scopus)
  • 混合気の不均質性を考慮した自己着火燃焼モデル

    上杉 康登, 山崎 由大, 金子 成彦, 疋田 孝幸, 津村 雄一郎, 水野 沙織

    日本機械学会論文集   Vol.83 ( No.850 ) 1 - 13  2017  [Refereed]

  • Influence of mock reformed gas by over-rich SI combustion on HCCI combustion fuelled by methane

    三好正城, 山崎由大, 上道茜, 金子成彦

    日本機械学会論文集(Web)   Vol.83 ( No.847 ) 1 - 11  2017  [Refereed]

    DOI J-GLOBAL

  • Study of model-based control system considering NOx emission in diesel engine

    Takahashi Motoki, Yamasaki Yudai, Kaneko Shigehiko

    Proceedings of the Japan Joint Automatic Control Conference   60   736 - 742  2017

    DOI CiNii

  • Combustion Control of MIMO Diesel Engine System by using Feedback Error Learning with Multilayer Neural Network

    Eguchi Makoto, Ohmori Hiromitsu, Takahashi Motoki, Yamasaki Yudai, Kaneko Shigehiko

    Proceedings of the Japan Joint Automatic Control Conference   60   747 - 752  2017

    DOI CiNii

  • Influence of mock reformed gas by over-rich SI combustion on HCCI combustion fuelled by methane

    MIYOSHI Masaki, YAMASAKI Yudai, UEMICHI Akane, KANEKO Shigehiko

    Transactions of the JSME (in Japanese)   83 ( 847 )  2017

     View Summary

    &lt;p&gt;HCCI combustion is effective for improving thermal efficiency of a gas engine, but it has problems such as control of the ignition and combustion. To solve the problem, availabilities of dedicated EGR technique are considered to control its ignition and combustion. Dedicated EGR involves reforming fuel into H&lt;sub&gt;2&lt;/sub&gt; or CO by running a single or more cylinder with rich mixture and supplying the exhaust gas directly into other cylinders. In this study, the effect of dedicated EGR on methane HCCI combustion was investigated by experiments. As a result, when equivalence ratio of rich SI combustion or EGR ratios increase, the ignition timing of HCCI advances and combustion becomes steep. The advanced ignition timing is caused by an increase of H&lt;sub&gt;2&lt;/sub&gt; mole fraction in the intake gas. In addition, the possibility of controlling the ignition timing, which is strongly concerned with the thermal efficiency of a HCCI engine, by dedicated EGR was discussed. It was shown that the ignition timing linearly depends on H&lt;sub&gt;2&lt;/sub&gt; mole fraction in the intake gas.&lt;/p&gt;

    CiNii J-GLOBAL

  • A trial application of acoustic excitation for jet noise reduction

    Shigehiko Kaneko, Tatsuya Ishii

    Acoustic Society of America: invited lecture, The Journal of Acoustic Society of America, (Dec.1-3,2016)   Vol.140 ( Issue4 ,3330 )  2016.12  [Invited]

    DOI

  • Combustion instability under hydrogen-rich condition

    I. Kanetsuki, A. Uemichi, S. Kaneko

    36th Int. Symp. Combust., WIPP, Seoul, Korea (August 2016)    2016.08

  • Sloshing in a horizontal cylindrical tank subjected to pitching excitation and damping effect by perforated plate

    S. Kaneko, H. Sakai, A. Takai, A. Uemichi, Y. Yamasaki

    Proc. 11st Int. Conf. Flow-induced vibration and noise, Hague, Netherland, (July 2016)     729 - 736  2016.07  [Refereed]

  • Development of a prediction method for combustion oscillation

    A. Uemichi, I. Kanetsuki, S. Kaneko

    Proc. 11st Int. Conf. Flow-induced vibration and noise, Hague, Netherland, (July 2016)     129 - 135  2016.07  [Refereed]

  • Damping Control of Sloshing in a Horizontal Cylindrical Container Used for Gas-Liquid Separator in FPSO System

    Akihiro TAKAI, Hidemitsu SAKAI, Shigehiko KANEKO

    First International Symposium on Flutter and its Application 2016, Tokyo, Japan (May 15-17)    2016.05  [Refereed]

  • Development of Quasi-3-Dimensional Dynamic Model for Free Standing Spent Fuel Racks

    Ryosuke KAN, Akihiro TAKAI, Shigehiko KANEKO

    First International Symposium on Flutter and its Application 2016, Tokyo, Japan (May 15-17)    2016.05  [Refereed]

  • Proposal of a Mathematical Model Aiming Sleepiness Estimation Using RR Interval

    Kento KADOYA, Sohei SAITO, Satoshi SAKAGAMI, Shigehiko KANEKO

    First International Symposium on Flutter and its Application 2016, Tokyo, Japan (May 15-17)    2016.05  [Refereed]

  • Tailoring of the bearing stiffness to enhance the performance of gas-lubricated bump-type foil thrust bearing

    Abdelrasoul M. Gad, Shigehiko Kaneko

    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY   230 ( 5 ) 541 - 560  2016.05  [Refereed]

     View Summary

    This study aims to tailor the bearing stiffness for enhancing the load-carrying capacity of foil thrust bearings. New architectures for the bump foil are introduced with structural stiffness tailored in the radial and circumferential directions to ensure a converging gas film under high axial loads while maintaining a reasonable bearing compliance to accommodate thermal as well as mechanical distortions. The structural stiffness of the bearing is calculated with an analytical method previously introduced by the authors, and the flow in the gas film is modeled with 2-D compressible Reynolds equation. The Couette Approximation technique is used to calculate the temperature distribution in the gas film and the small perturbations method is used to calculate its dynamic force coefficients. Enhanced load capacity could be obtained with the introduced bump foil designs.

    DOI

    Scopus

    15
    Citation
    (Scopus)
  • Study on Model Based Combustion Control of Diesel Engine with Multi Fuel Injection

    R. Ikemura, Y. Yamasaki, S. Kaneko

    MOVIC2016, (Southampton, UK)    2016  [Refereed]

  • Acoustic Excitation for Jet Noise Reduction

    Kyohei Sawada, Shunji Enomoto, Hideshi Oinuma, Kenichiro Nagai, Tatsuya Ishii, Shigehiko Kaneko

    IGTC2015, International Gas Turbine Congress, Toranomon Hills Forum, Tokyo, Nov.15-20, 2015.    2015.11  [Refereed]

  • Proposal of a Criterion for Combustion Oscillation Considering Fuel Flexibility

    Akane Uemichi, Riku Machida, Shigehiko Kaneko

    IGTC2015,International Gas Turbine Congress, Toranomon Hills Forum, Tokyo, Nov.15-20, 2015.    2015.11  [Refereed]

  • Development of Model for Axial Vibration of a Rotor Observed in Turbo Pump Considering Compressibility of Fluid

    Itsuki Ohnishi, Shigehiko Kaneko

    IGTC2015, International Gas Turbine Congress, Toranomon Hills Forum, Tokyo, Nov.15-20, 2015.    2015.11  [Refereed]

  • Proposal of Distributed Energy System for Equipment Configuration and Operation Considering Emergency Cases

    Hiroshi Nagao, Shigehiko Kaneko, Yudai Yamasaki

    Microgen IV, The 4th International Conference on Microcogeneration and Related Technologies, University of Tokyo, Oct.28-30, 2015    2015.10  [Refereed]

  • Development of Dynamic Models for an HCCI Engine with Exhaust Gas Rebreathing System

    Yudai Yamasaki, Sota Umahashi, Yasuto Uesugi, Qiong Ma, Shigehiko Kaneko, Takayuki Hikita, Saori Mizuno, Yuichiro Tsumura, Tadasu Hashiguchi

    SAE Technical Papers   2015- ( September ) SAE Technical Paper 2015-01-1803, 2015  2015.09  [Refereed]

     View Summary

    In this paper, a simplified prediction model for aiming to design an engine control system of Homogeneous Charge Compression Ignition (HCCI) engine has been developed. Developed HCCI engine model is for rebreathing concept and employs the discretized cycle concept to realize fast calculation speed. The ignition timings are predicted by Livengood-Wu integration combined with a function of ignition delay and the combustion durations are predicted from supplied fuel mass quantity. Maximum pressure and its phase are compared to experiments. In addition, for designing an HCCI engine, the models to predict appropriate operation conditions are considered.

    DOI

    Scopus

    5
    Citation
    (Scopus)
  • Characteristics of combustion oscillation observed in a micro gas turbine combustor fuelled by biomass gas

    Shigehiko Kaneko, Riku Machida, Akane Uemichi, Hosung Hwang, Takuya Ohno, Ryohei Kitamura

    3rd Symposium on Fluid-Structure-Sound Interactions and Control, Curtin University, Perth-Western Australia, July 5-9    2015.07

  • Performance characteristics of gas-lubricated bump-type foil thrust bearing

    Abdelrasoul M. Gad, Shigehiko Kaneko

    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY   229 ( 6 ) 746 - 762  2015.06  [Refereed]

     View Summary

    In the present study, the static and dynamic characteristics of Generation II bump-type foil thrust bearings are investigated. For the static characteristics, a 2D compressible Reynolds equation containing effects of centrifugal forces is derived to model the fluid flow in the thin gas film. The compliance of the bearing is calculated using analytical structural stiffness model. The fluid flow equation is coupled to the structural stiffness model and the coupled fluid-structure interaction problem is solved iteratively to obtain the steady-state characteristics of the bearing. For the dynamic characteristics, small perturbations method is used to obtain the linearized equations for the pressure components of dynamic force coefficients. The effects of rotation speed, ramp height, nominal film thickness, friction coefficients at bump foil interfaces, and bump foil stiffness on the static and dynamic characteristics of Generation II foil thrust bearings are thoroughly analyzed.

    DOI

    Scopus

    15
    Citation
    (Scopus)
  • Proposal of an Evaluate Formula for Combustion Oscillation Considered an Effect of Laminar Flame Speed

    Akane Uemichi, Riku Machida, Shigehiko Kaneko

    Proceedings of The 4th Korea-Japan Dynamics Symposium, May 21-22    2015.05

  • CONSTRUCTION OF DYNAMIC MODEL FOR FREE STANDING SPENT FUEL RACK UNDER SEISMIC EXCITATIONS

    Shigehiko Kaneko, Hironao Shirai

    PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE - 2015, VOL 4    2015  [Refereed]

     View Summary

    Free standing rack designed for storing spent fuel at nuclear power station has an advantage to earthquake excitations because both fluid force and friction force can reduce the movement of a rack. However, there are various motions of FS rack such as parallel, rotational and rocking which should be taken into consideration when it is subjected to earthquake excitations. Therefore, the motion of FS rack must be precisely figured out in order to apply FS rack design concept. In this research, to investigate the motion of FS rack, 2-dimensional dynamic model considering pressure loss of gap flow was constructed. In addition, an experiment with a 1/16 scale model was conducted to validate the dynamic model. From numerical results based on the proposed dynamic model, some important features for the design of FS rack were found. Finally, case studies by real size free standing rack under the excitation of actually observed earthquake wave like The Great East Japan earthquake and The Niigata-ken Chuetsu-Oki earthquake were conducted based on the proposed method of calculation.

  • Fluid flow and thermal features of gas foil thrust bearings at moderate operating temperatures

    Abdelrasoul M. Gad, Shigehiko Kaneko

    Mechanisms and Machine Science   21   1223 - 1233  2015  [Refereed]

     View Summary

    This study aims to analyze the flow characteristics and the thermal features of foil thrust bearing. The flow in the gas film is modeled with 2D compressible Reynolds equation including effects of centrifugal forces in the gas film. The Couette Approximation is adopted for the analysis of temperature distribution in the gas film, and the small perturbations method is used to calculate its dynamic force coefficients. The results show that the Couette Approximation can be used to calculate the temperature distribution in foil thrust bearing with reasonable accuracy and the analysis of the fluid flow reveals that most of the side-leakage occurs in the low-temperature converging region removing less than 5% of the heat generated in the gas film. Furthermore, with the proper control of cooling flow rate through the bump foils, more than 70% of the heat generated in the gas film can be removed.

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  • Diesel Combustion Model for On-board Application

    Kazuma YASUDA, Yudai YAMASAKI, Shigehiko KANEKO, Yusuke NAKAMURA, Norimasa IIDA, Ryo HASEGAWA

    International Journal of Engine Research, October 26, 2015    2015  [Refereed]

    DOI

  • Tailoring of the Bearing Stiffness to Enhance the Performance of Gas-Lubricated Bump-Type Foil Thrust Bearing

    Abdelrasoul M. Gad, Shigehiko Kaneko

    Journal of Engineering Tribology, Proceedings of the Institution of Mechanical Engineers, Part J   0 ( 0 ) 1 - 20  2015  [Refereed]

  • Development of a Simple System to Sense Vital Signs from the Back

      Vol.50 ( No.2 ) 78 - 88  2015  [Refereed]

    CiNii

  • Prediction of Ignition and Combustion Development in an HCCI Engine Fueled by Syngas

    Yudai Yamasaki, Shigehiko Kaneko

    SETC2014(Pisa, Italy,) (November. 20, 2014)     SAE 2014-32-0002/JSAE 20149002  2014.11  [Refereed]

  • A New Structural Stiffness Model for Bump-Type Foil Bearings: Application to Generation II Gas Lubricated Foil Thrust Bearing

    Abdelrasoul M. Gad, Shigehiko Kaneko

    JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME   136 ( 4 )  2014.10  [Refereed]

     View Summary

    A new structural stiffness model for the compliant structure in foil gas bearings is introduced in the first part of this work. The model investigates the possibility that the flat segment between bumps, in bump foil strip, may deflect laterally and separate from the rigid bearing surface, and it also considers the interaction between bumps in the bump foil strip, the friction between the bump foil, and the surrounding structure. The validity of the analytical solution was verified through direct comparison with previous numerical and analytical models. In the second part of this work, the introduced bump foil model is used to investigate the static characteristics of generation II gas foil thrust bearing. The numerical simulations of the coupled fluid-structure interactions revealed that the foil thrust bearings share many features with their rigid bearing counterpart and the results showed clearly that the load carrying capacity of foil thrust bearings increases nonlinearly with the rotation speed and is expected to reach an asymptote as the rotation speed exceeds a certain value. The effects of ramp height and interface friction (i.e., friction at bump foil/rigid bearing interface and bump foil/top foil interface) on the static characteristics of generation II foil thrust bearings are investigated.

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    59
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  • The Effect of Punching Plates to Suppress the Sloshing in a Gas Liquid Separator

    Shigehiko Kaneko, Hayato Suzuki

    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME   136 ( 5 )  2014.10  [Refereed]

     View Summary

    Natural gas is relatively clean and its demand is increasing these days. In most of the case, gas fields are located at the bottom of the sea. Therefore, floating production, storage and offloading (FPSO) system is now attracting big attention. This paper is related to dynamical design of FPSO system, specially focused on the free surface elevation in the horizontal cylindrical and axisymmetric liquid vessel with end caps induced by the wave. In this study, the theory on the wave height and resonant frequency in a horizontal cylinder subjected to longitudinal external excitation is developed. Then, the theory capable of taking account of the effect of punching plates is described. Finally, experimental data of resonant wave height up to 3rd mode are shown in comparison with theoretically derived results.

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    1
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  • A study on introduction of gas engine to micro-grid with genetic algorithm

    Yugo Yamaguchi, Riku Machida, Shigehiko Kaneko, Yudai Yamasaki

    MoViC 2014 (JSME, Sapporo, 2014) (August 6, 2014)    2014.08  [Refereed]

  • CFD-Based Design and Performance Characteristics of Generation II Foil Thrust Bearing for Microturbomachinery Applications

    Abdelrasoul M. Gad, Shigehiko Kaneko

    15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, February 24 - 28, 2014, Honolulu, HI, USA.     ISROMAC-15  2014.02  [Refereed]

  • Pressure pulsations in piping system excited by a centrifugal turbomachinery taking the damping characteristics into consideration

    I. Hayashi, S. Kaneko

    JOURNAL OF FLUIDS AND STRUCTURES   45   216 - 234  2014.02  [Refereed]

     View Summary

    Pressure pulsations excited by a centrifugal turbomachinery such as compressor, fan or pump at the blade passing frequency may cause severe noise and vibrations in piping system. Therefore, the practical evaluation method of pressure pulsations is strongly recommended. In particular, the maximum pressure amplitude under the resonant conditions should be appropriately evaluated. In this study, a one-dimensional excitation source model for a compressor or pump is introduced based on the equation of motion, so as to incorporate the non-linear damping proportional to velocity squared in the total piping system including the compressor or pump. The damping characteristics of the compressor or pump are investigated by using the semi-empirical model. It is shown that the resistance coefficient of the compressor or pump depends on the Reynolds number that is defined using the equivalent velocity of the pulsating flow. The frequency response of the pressure amplitude and the pressure distribution in the piping system can be evaluated by introducing the equivalent resistance of the compressor or pump and that of piping system. In particular, the relation of the maximum pressure amplitude in piping system to the location of the excitation source under resonant conditions can be evaluated. Finally, the reduction of the pressure pulsations by use of an orifice plate is discussed in terms of the pulsation energy loss. (C) 2013 Elsevier Ltd. All rights reserved.

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    55
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  • Modeling of the motion of spent nuclear fuel racks taking account of FSI effect

    Shigehiko Kaneko, Hironao Shirai, Rei Fukushima, Hideo Yasue

    Proceedings of ENOC 2014, Wien, Austria     #494  2014

  • DYNAMICS OF THE FORCED KARMAN WAKE: COMPARISON OF 2D AND 3D MODELS

    Njuki W. Mureithi, Xiaofei Xu, Laszlo Baranyi, Tomomichi Nakamura, Shigehiko Kaneko

    ASME PRESSURE VESSELS AND PIPING CONFERENCE - 2014, VOL 4     PVP2014-28750  2014  [Refereed]

     View Summary

    The interaction between the cylinder motion and the wake is a complex feedback phenomenon in which the symmetry relationship between the wake and the cylinder motion plays a key role. Depending on the frequency of oscillation the symmetry relationship between the unforced von Karman wake and the imposed forced oscillations can induce a series of bifurcations. This detailed bifurcation behavior is the subject of study in the present work. 2D and 3D simulations are carried out for a Reynolds number Re=1000. As the inline cylinder forcing amplitude is increased, the wake undergoes a series of bifurcations and associated changes in the flow structure. Although the 2D analysis is clearly non-physical, it leads to a 'simpler' and more tractable model.
    Detailed comparison of the 2D and 3D POD modes provides insight into the forced wake dynamics. The 3D spatial mode shapes are significantly similar to those from 2D simulations. The relative modal energy distribution captures well the wake flow complexity. The first mode contains over 90% of the flow energy in the 2D simulations. This ratio drops significantly in the 3D case to around 45%. Clearly 3D effects are very important when it comes to energy distribution between the modes. However, the predominance of the first mode seems high enough to maintain the 2D -like dynamics.
    The wake flow is found to undergo two main transitions with increased forcing. The first is periodic shedding to chaotic shedding. The second is chaotic shedding to half -frequency shedding caused by a period -doubling bifurcation. The 2D simulations correctly predict these bifurcations including the type and the number of bifurcations. The results suggest that the forced wake dynamics are primarily dominated by twodimensional rather than 3D dynamics. However, 3D effects are important in determining the exact parameter values where bifurcations occur. A previously developed low order analytical model, based on 2D simulations, is also used to predict the wake bifurcation behavior. The relevance of the low order model has interesting implications for VIV control.

  • DESIGN AND MAINTENANCE IN AN IAEA TECHNICAL GUIDELINES ON FLUID-STRUCTURE INTERACTION

    Fumio Inada, Tomomichi Nakamura, Takashi Nishihara, Shigehiko Kaneko, Manwoong Kim, Robert A. Ainsworth, Shiro Takahashi

    ASME PRESSURE VESSELS AND PIPING CONFERENCE - 2014, VOL 4     PVP2014-28389  2014  [Refereed]

     View Summary

    In nuclear power plants, fluid structure interactions (FSI) occurring in component systems can cause excessive forces or stresses to the structures resulting in mechanical damages that may eventually threaten the structural integrity. FSI in the guidelines includes flow-induced vibration, water hammer, and pipewhip. It can also include movement, deformation, or fracture of equipthents by tsunami etc. They can be issues of design and maintenance. Authors cannot find complete guidelines to correspond to the FSI phenomena which can be important in the design and maintenance of nuclear power plants. Based on the background, International Atomic Energy Agency (IAEA) has drafted guidelines on FSI. This paper summarizes general description of FSI as well as design and maintenance against FSI.

  • THE EFFECT OF PUNCHING PLATES TO SUPRESS THE SLOSHING IN A GAS LIQUID SEPARATOR

    Hayato Suzuki, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE - 2013, VOL 4: FLUID-STRUCTURE INTERACTION     PVP2013-97918  2014  [Refereed]

     View Summary

    Natural gas is relatively clean and its demand is increasing these days. In most of the case, gas fields are located at the bottom of the sea. Therefore, Floating Production, Storage and Offloading (FPSO) system is now attracting big attention. This paper is related to dynamical design of FPSO system, specially focused on the free surface elevation in the horizontal cylindrical and axisymmetric liquid vessel with end caps induced by the wave. In this study, the theory on the wave height and resonant frequency in a horizontal cylinder subjected to longitudinal external excitation is developed. Then, the theory capable of taking account of the effect of punching plates is described. Finally, experimental data of resonant wave height up to 3rd mode are shown in comparison with theoretically derived results.

  • Performance characteristics of gas-lubricated bump-type foil thrust bearing

    Abdelrasoul M. Gad, Shigehiko Kaneko

    Journal of Engineering Tribology, Proceedings of the Institution of Mechanical Engineers,Part J   0 ( 0 ) 1 - 17  2014  [Refereed]

  • バイオマスガスを利用するHCCIエンジン(予混合気の不均質性の影響)

    山崎由大, 篠田治人, 金子成彦

    Journal of the Japan Institute of Energy   93   135 - 141  2014  [Refereed]

  • Study on an HCCI engine fueled by biomass gas (effect of inhomogeneity of premixture)

    Yudai Yamasaki, Haruto Shinoda, Shigehiko Kaneko

    Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy   93 ( 2 ) 135 - 141  2014  [Refereed]

     View Summary

    In this study, applicability of the gas fuel generated from wood biomass by thermal chemical processes to an homogenous charge compression ignition engine is investigated in experiment. In particular, the availability of inhomogeneity of both fuel concentration and temperature is evaluated to control the combustion against the variation of fuel composition. Inhomogeneity of premixture is varied by changing the ratio of fuel injected to two points, one far from the intake valve and another near the intake valve. In this system, both local fuel concentration and local temperature of premixture vary
    the lower fuel concentration point has higher initial temperature. Two test fuels with difference in H2 concentration are used. The influence of the inhomogeneity on both ignition timing and combustion duration was found. Higher inhomogeneity retards ignition timing for its lower temperature and prolong combustion duration for its distributed combustion in the cylinder. Furthermore, the effect of inhomogeneity and the acceptable inhomogeneity depended on fuel composition. Higher H2 content fuel can use higher inhomogeneity and receive much favors for decreasing maximum in-cylinder gas pressure rising rate.

    DOI

  • A Method of Sleepiness Estimate by Uusing Bayesian Estimation

    Shumpei Miyazaki, Shigehiko Kaneko

    APVC2013, Jeju Island, July 2-6    2013.07  [Refereed]

  • Thermal instability in a magnetically levitated doubly overhung rotor

    Naohiko Takahashi, Shigehiko Kaneko

    JOURNAL OF SOUND AND VIBRATION   332 ( 5 ) 1188 - 1203  2013.03  [Refereed]

     View Summary

    This paper deals with a synchronous vibration instability that occurred in a two-stage overhung centrifugal compressor supported by magnetic bearings. The authors encountered an unbalance vibration that increased spirally in a polar plot at/near the first bending critical speed. The concentration of iron loss and thermal bending due to heat have been identified as the causes of the phenomenon, because the vibration stopped increasing when unbalance force rejection control (UFRC) was applied. In this paper, prior to an in-depth discussion of experiments on the above phenomenon, the compressor and magnetic bearing system are described. To provide a theoretical perspective, a model of the thermally induced vibration is presented and the stability is discussed. In the experiments, to exceed the first bending critical speed stably, balancing of the rotor under UFRC was carried out and rapid acceleration/deceleration was applied to the variable-speed drive system. The vibration behaviors around the critical speed were measured and the results verified the theoretical model. To evaluate the stability limit of the thermal bending, a method of measuring the model parameter that determines the stability is proposed and the measured data are compared with calculated results. Finally, methods for improving the stability are discussed. (C) 2012 Elsevier Ltd. All rights reserved.

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    11
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  • A Thermohydrodynamic Sparse Mesh Model of Bump-Type Foil Bearings

    Kai Feng, Shigehiko Kaneko

    JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME   135 ( 2 ) 022501 (12 pages)  2013.02  [Refereed]

     View Summary

    A numerical model for 3D thermohydrodynamic analysis of bump-type foil bearings with a sparse mesh across the air film is described. The model accounts for heat convection into cooling air, thermal expansion of the bearing components, and material property variations due to temperature rise. Deflection of the compliant foil strip, described as a link-spring structure, is coupled to the solution of the generalized Reynolds equation and the energy equation to account for the effect of foil deformation on the film thickness. The variation in bump stiffness with the thermal growth of bumps is also considered in the model. The unique airflow in foil bearings created by the top foil detachment in the subambient region is analyzed for use in modifying the thermal boundary condition. The Lobatto point quadrature algorithm is used to represent the model on a sparse mesh and thereby reduce the computational effort. The calculated bearing temperatures are in remarkable agreement with both the published test data with the use of cooling air and that without the use of cooling air. The change of bearing radial clearance due to thermal growth of the bearing components was found to significantly affect the bearing load and to be a likely cause of the obvious drop in load capacity with a rise in ambient temperature. [DOI: 10.1115/1.4007728]

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    24
    Citation
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  • バイオマス由来ガス燃料を利用するHCCIエンジンの自動運転制御

    山崎由大, 新井太一, 金子 成彦

    日本機械学会論文集C編   79 ( 807 ) 4263 - 4274  2013  [Refereed]

  • 自然エネルギーの変動抑制に利用するガスエンジンの排気特性とコスト評価

    見並 克俊, 山崎由大, 金子 成彦

    日本機械学会論文集B編   79 ( 808 ) 2836 - 2845  2013  [Refereed]

  • ガスエンジンを利用した自然エネルギー電源の出力変動補償

    山崎 由大, 小林 大悟, 野口 雄平, 牛島 宏太, 金子 成彦

    日本機械学会論文集 B編(Web),   Vol.79 ( No.806 ) 2138 - 2148  2013  [Refereed]

  • バイオマス熱分解ガスを用いるディーゼルエンジンに関する研究

    山崎由大, 野口雄平, 藤原直人, 金子成彦

    日本エネルギー学会誌   Vol.92 ( No.10 ) 957 - 963  2013  [Refereed]

  • バイオマス由来ガス燃料を用いるエンジンの制御 (素反応数値計算とクランク軸瞬時トルクの適用)

    山崎由大, 津田健嗣, 金子成彦

    日本機械学会論文集 C編(Web)   Vol.79 ( No.801 ) 1453 - 1460  2013  [Refereed]

  • Development of an engine control system using city gas and biogas fuel mixture

    Yudai Yamasaki, Masanobu Kanno, Yoshitaka Suzuki, Shigehiko Kaneko

    Applied Energy   101 ( issue C ) 465 - 474  2013  [Refereed]

     View Summary

    In this paper, a gas engine system capable of stable operation at any mix ratio of city gas 13A and biogas was developed. The gas engine system consists of a spark-ignition gas engine, an additional electric throttle valve for fuel and our own control algorithm. The engine is a 3-cylinder 1.6-l engine that was originally used for co-generation, and the fuel throttle valve was added to respond to different fuel compositions. The control algorithm was also designed to adjust the fuel and air ratio to attain a higher generation efficiency and lower NOx emission with different mix ratios of city gas 13A, biogas and load. Before developing the controller, the effect of the mix ratio on generation efficiency and NOx emission was investigated under various load conditions. The following summarizes the experimental results: a control algorithm using the Wobbe index for mixed fuels was formulated
    this index determines the target fuel-to-air ratio. Next, operation tests were performed under varying fuel mix ratios and loads by applying the control algorithm to the gas engine. The target engine rotational speed and exhaust O2 concentration was realized in 5s when the biogas fraction varied from 20% to 40% and from 70% to 40%. When the load was also varied from 9.4kW to 0.5kW and from 0.5kW to 9.4kW at a constant rate, the rotational speed and exhaust O2 concentration achieved the target values in 20s. Under both transient operation conditions, the engine system met the NOx emission requirement, and the results indicate that the simple hardware modification to a conventional gas engine and our original control algorithm are capable of achieving stable engine operation at any mix ratio of city gas 13A and biogas. © 2012 Elsevier Ltd.

    DOI

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    25
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  • Thermally Induced Vibration in Magnetic Bearing Supported by High-Speed Rotor

    Naohiko Takahashi, Shigehiko Kaneko

    Journal of Sound and Vibration   332   1188 - 1203  2013  [Refereed]

  • Automatic operation system of HCCI engine with Gas fuel from biomass

    Yudai Yamasaki, Taichi Arai, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   79 ( 807 ) 4263 - 4274  2013  [Refereed]

     View Summary

    Two types of the automatic HCCI engine control systems to use biomass gas were developed. One is to use inhomogeneity of pre-mixture, and another one is to use city gas 13A to control ignition and combustion. Ion current measurement system was applied to detect the combustion behavior for the variation of biomass gas and was also used for the closed loop control systems. From these systems, it was clarified that the maximum timing of the ion current and the rate of heat release have correspondence regardless of fuel compositions and inhomogeneity of mixture. In both control systems, setting the maximum timing of ion current to a constant value is enough to achieve higher thermal efficiency. Both systems succeeded to operate the engine for varying compositions of biomass gas, although the combustion system using city gas 13A shows better applicability than the inhomogeneity of mixture control system. © 2013 The Japan Society of Mechanical Engineers.

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    2
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  • Exhaust gas characteristic and cost evaluation of gas engines compensating for power fluctuation of renewable energy

    Katsutoshi Minami, Yudai Yamasaki, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B   79 ( 808 ) 2836 - 2845  2013  [Refereed]

     View Summary

    To utilize photovoltaic power generation (PV), the compensation for power fluctuation is necessary since the fluctuation has a bad influence on electric power system. Therefore, micro grid using several kinds of distributed generation is considered to be a good solution. For this reason, studies on batteries have been done in particular, due to the high output responsiveness. However, the power generation cost of batteries is higher than other distributed generation such as gas engines, which have not been studied enough from the viewpoint of distributed generation to compensate for renewable energy. In this paper, the feasibility of gas engines to compensate for the PV fluctuation is investigated from the point of view of exhaust gas NOx and power cost by simulation. As a result, the amount of NOx increases as the output of the gas engine fluctuates, but this increase on NOx hardly has a problem in micro grid. As for power cost, it can be decreased by combining battery and a few kinds of gas engines efficiently. In conclusion, it can be said that gas engines are able to play an important role in micro grid as distributed generation. © 2013 The Japan Society of Mechanical Engineers.

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    1
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  • Application of gas engines to compensation of power fluctuation from renewable energy generations

    Yudai Yamasaki, Daigo Kobayashi, Yuehi Noguchi, Kota Ushijima, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B   79 ( 806 ) 2138 - 2148  2013  [Refereed]

     View Summary

    In order to increase the capacity of renewable energy in power systems, it is necessary to reduce power fluctuations. In this paper, the potential of gas engines (GEs) is evaluated by means of dynamic simulation in hybrid power systems consist of GEs and photovoltaic cells (PV) supply power to a large grid. First, basic characteristics of gas engines were investigated for load changes. The small gas engine, its maximum output is 9.9kW, shows quicker response of output and lower generating efficiency than the gas engine of 350kW output. The load response of both engines is influenced by the amplitude and the frequency of the output demand, and not by the bias load. Next, the simulations were implemented using the real power profile of PV. As a result of simulations, 9.9 kW GE is very useful to compensate PV power fluctuation because of its quick response for the load change. The efficient system to use GEs to achieve both the suppression of the PV's power fluctuation and the higher efficiency of the system is also discussed. By combining a larger scale GE with small scale GEs, the system to control preferentially the small GEs shows higher system efficiency at the same output response condition. © 2013 The Japan Society of Mechanical Engineers.

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    4
    Citation
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  • Study on diesel engine with biomass producer gas

    Yudai Yamasaki, Yuhei Noguchi, Naoto Fujiwara, Shigehiko Kaneko

    Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy   92 ( 10 ) 957 - 963  2013  [Refereed]

     View Summary

    The composition of the biomass producer gas varies for the resource of biomass and the gasification method. In order to establish the operation guideline for dual fuel engines with a traditional injection system to use such gas fuels, the effects of the gas composition, pilot injection quantity and EGR on engine performance and emissions were investigated in experiments. The various mock biomass producer gases consisting of H2, CH4, CO, N2 and CO2 were supplied by mass flow controllers to a direct-injection diesel engine with a jerk type fuel injection pump. JIS 2 type diesel was also used for pilot fuel. It is clarified that the laminar burning velocity is useful index to estimate the operating range regardless of the gas composition, although the suitable equivalence ratio to ensure the stable operation varies according to the gas composition. The laminar burning velocity of over 40 cm/s at the TDC condition is a qualification to keep stable engine operation. At lower loads, EGR improves combustion and leads to the higher thermal efficiency, although it decreases the thermal efficiency because of its lower degree of constant volume at medium loads. In addition, the effect of EGR is small for the fuel with lower hydrogen content.

    DOI

  • Engine control with gas fuel produced from biomass (availability of calculation with detailed chemical reaction and crank shaft torque)

    Yudai Yamasaki, Kenji Tsuda, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   79 ( 801 ) 1453 - 1460  2013  [Refereed]

     View Summary

    Internal combustion engines are required to use various fuels. A conventional MAP based engine control system is not suitable for achieving stable operation and high thermal efficient operation for various fuels. Authors have been developing the engine control algorithm to realize fuel flexibility by employing experimental rules and a closed 1oop control using in-cylinder gas pressure. In this study, in order to improve fuel flexibility of engine control algorithm and to confirm the experimental rules, availability of calculation results with elementary reactions for the algorithm is investigated. Availability of instant crank shaft torque for a feedback sensor is also investigated. The result shows that the modified engine control system employing laminar burning velocities calculated from elementary reactions and the torque feedback 1oop can maintain stable operations when fuel lower heating value varies during engine operation. © 2013 The Japan Society of Mechanical Engineers.

    DOI

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  • Modeling of Combustion Oscillation Experienced in Micro Gas Turbine Combustor Fueled by Biomass Gas

    Shigehiko KANEKO, Daisuke YAMAZAKI, Hosung HWANG, Tatsuo WATANABE, Yudai YAMASAKI

    FIV2012, 10th International Conference on Flow-Induced Vibration (& Flow-Induced Noise) 2nd - 6th July 2012, Hosted by Trinity College Dublin    2012.07  [Refereed]

  • NUMERICAL SIMULATION OF PULSE WAVE PROPAGATION IN ARTERIES WITH STRUCTURED-TREE OUTFLOW CONDITIONS

    Kazuma Yasuda, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE 2012, VOL 1, PTS A AND B     75 - 84  2012  [Refereed]

     View Summary

    When constructing the one-dimensional systemic artery tree, the Windkessel model based on parameters describing the total resistance and compliance is generally applied as outflow boundary conditions. However, the Windkessel model does not include wave propagation effects, and moreover, it is not obvious how the parameters should be estimated Hence, the main purpose of this study is to develop an outflow boundary condition based on the underlying physiology of the arterioles, enabling the prediction of blood flow and pressure in the systemic arteries including the arterioles. The obtained numerical results show the followings. Firstly, we verified that applying the structured tree model as an outflow boundary condition can reproduce the essential characteristics of the arterial pulse better than applying the Windkessel model. Secondly, by analyzing the pulse wave velocity in aorta, we found a correlation between pulse wave velocity and the degree of arteriosclerosis which correspond to the clinical observation.

  • DYNAMIC CHARACTERISTICS OF FLUID FORCE INDUCED BY SWIRLING LEAKAGE FLOW BETWEEN ROTATIONAL AND STATIONARY DISKS

    Takayuki Sugiyama, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE 2012, VOL 1, PTS A AND B     65 - 74  2012  [Refereed]

     View Summary

    Axial self-excited vibration may be induced in a balance piston by fluid with a tangential velocity component that flows into the piston orifices. To avoid such vibration, knowledge of the dynamic characteristics of axial self-excited vibration induced by swirling leakage flow is required at the design stage.
    In this research, the effect of axial rotation and swirl strength on the added fluid force coefficients is clarified by modeling the piston orifice as the combination of rotational and stationary disks, and deriving the unsteady fluid force generated by swirling leakage flow between the disks.
    As a result, reduction of the relative velocity in the circumferential direction is shown to destabilize the oscillatory system. In particular; the effect of swirl strength on the fluid force coefficient is found to be larger in the case of the divergent channel than in the case of the parallel flow path.

  • INTEGRATED NUMERICAL MODEL FOR THERMOHYDRODYNAMIC ANALYSIS OF BUMP-TYPE FOIL BEARINGS

    Kai Feng, Shigehiko Kaneko, Haruo Houjoh

    PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, 2011, VOL 8     3 - 14  2012  [Refereed]

     View Summary

    This investigation presents a thermohydrodynamic (THD) analysis for bump-type foil bearings. Two basic equations, the generalized Reynolds equation and the energy equation, are simultaneously solved for the air pressure and generated heat due to the viscous shearing action in the air film. The compliant foil strip is described as a link-spring structure. The calculated foil deflection is coupled into the solution of the two basic equations to account for its effect on the film thickness. This model accounts for heat convection in the air film region and the material property variations of the lubricant air due to the temperature rise, heat convection with the cooling air, heat conduction between the solid components, heat transfer at the surface of the solid components, and thermal expansion of the bearing components as well as change in the bump foil elasticity. The airflow within the air film is a distinctive characteristic of bump-type foil bearings (BTFBs) compared to normal oil bearings because the top foil detaches at sub-ambient regions. The unique airflow is also taken into consideration in this model to modify the thermal boundary condition of the air film.
    Data from a published experimental investigation is used to validate the mathematical model. The predicted bearing temperatures, as well as the bearing load, agree well with the experimental data. The effects of ambient temperature on BTFB performance are discussed with the THD model. With increased ambient temperature, the influence of the bearing clearance changes, because the thermal growth of the bearing components is more significant than the decrease of the foil elasticity. Therefore, the thermal expansion coefficients of the bearing components should be considered during bearing design. The temperature profile within the foil bearing is predicted and compared with published tested temperature values. The calculated temperature correlates well with the experimental data at most of the positions. The deviation between the two values at the bearing-load position is demonstrated to be less than 10.3%.

  • Damping estimation of a loosely supported single U-bend tube used in a steam generator

    S. Kaneko, R. Kobayashi, T. Watanabe, T. Nakamura

    MODERN PRACTICE IN STRESS AND VIBRATION ANALYSIS 2012 (MPSVA 2012)   382   12048  2012  [Refereed]

     View Summary

    An evaluation method for estimating the damping of loosely supported single U-bend tube used in a steam generator colliding with a support plate is proposed. First, we performed experimental modal analysis and obtained natural frequencies, modes and damping without collision by Impulse Modal Test and then analysed natural frequencies, modes and damping with collision employing FEM analysis taking account of the collision force. In modelling the characteristics of the collision force, we applied Bijlaard's model for the spring constant and assumed hysteresis. After that, we performed experiments for measuring the damping ratio by changing the gap size and the support plate position. Comparison between calculated and experimental results is made which shows good agreement. Experimentally observed fact showing damping coefficient increases with the initial amplitude is well explained by theoretical model.

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  • HCCIエンジンによる木質系バイオマスガスと都市ガスの混焼利用(燃料組成の影響)

    山崎 由大, 篠田 治人, 金子 成彦

    日本機械学会論文集B編(Web)   78巻 ( 787号 ) 410 - 414  2012  [Refereed]

  • HCCI engine fueled by woody biomass gas and city gas (effect of fuel composition)

    Yudai Yamasaki, Haruto Shinoda, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B   78 ( 787 ) 410 - 414  2012  [Refereed]

     View Summary

    Autoignition and combustion characteristics of biomass gas and city gas 13 A mixed fuels in a HCCI engine were investigated. A mock biomass gases consisting of H 2, CH 4, CO, N 2 and CO 2 were used assuming woody pyrolysis gases. Using a modified gas engine with high compression ratio pistons and an inlet air heating system, experiments were carried out. Influences of mixing ratio of two fuels on heat release and indicated thermal efficiency were investigated. Higher city gas 13 A content make maximum value of rate of heat release lower at a constant equivalence ratio and a constant IMEP. The mixed fuel obtains higher indicated thermal efficiency and lower cyclic variation than biomass gas or city gas 13A only. Effects of H 2 and CO contents of biomass gas were also investigated. It is clarified that H2 has a big influence on rate of heat release but CO does not. © 2012 The Japan Society of Mechanical Engineers.

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    Scopus

  • Development of an Assistant Design System for Gas Foil Bearings

    Feng Kai, Shigehiko Kaneko

    International Gas Turbine Congress 2011, November 13th-18th, 2011, Osaka, Japan     IGTC2011-ABS-0167  2011.11  [Refereed]

  • Combustion Oscillation of Micro Gas Turbine Operated by Biomass Gas

    Hwang Hosong, Daisuke Yamasaki, Ryohei Kitamura, Shigehiko Kaneko, Yudai Yamasaki

    Proceedings of The Second Korea-Japan Dynamics Symposium, May 25-27    2011.05

  • A Method of Sleepiness Estimate by a Correlation between RR interval and Sleepiness

    Shigehiko Kaneko, Rei Fukushima

    DYNAMICS FOR SUSTAINABLE ENGINEERING, 2011, VOL 4     2040 - 2046  2011

     View Summary

    This study aimed to invent handy method that can estimate the level of sitting people's sleepiness from RR interval(Time duration between two consecutive R waves of the ECG)in order to proposenew system for preventing car accidents caused by sleepiness. In the study, to estimate sleepiness level from RR interval, relationship of them was investigated by a series of experiment. RR interval was calculated from the pulse wave measured with a finger sensor. Sleepiness level was measured with Visual Analogue Scale (VAS), one of the typical subjective rate scales. The measured sleepiness level was named sleepiness score.
    As a result of investigating relationship of RR interval and sleepiness score, clear correlation between them was found. Finally, sleepiness-estimate function was first determined by applying least-square method to the scatter diagram of RR interval and sleepiness score. Then, usability of this function was verified from the results of a series of experiments showing the possibility to universally estimate sleepiness from RR interval.

  • Noninvasive Biological Sensor System for Detection of Drunk Driving

    Kohji Murata, Etsunori Fujita, Shigeyuki Kojima, Shinitirou Maeda, Yumi Ogura, Tsutomu Kamei, Toshio Tsuji, Shigehiko Kaneko, Masao Yoshizumi, Nobutaka Suzuki

    IEEE TRANSACTIONS ON INFORMATION TECHNOLOGY IN BIOMEDICINE   15 ( 1 ) 19 - 25  2011.01  [Refereed]

     View Summary

    Systems capable of monitoring the biological condition of a driver and issuing warnings during instances of drowsiness have recently been studied. Moreover, many researchers have reported that biological signals, such as brain waves, pulsation waves, and heart rate, are different between people who have and have not consumed alcohol. Currently, we are developing a noninvasive system to detect individuals driving under the influence of alcohol by measuring biological signals. We used the frequency time series analysis to attempt to distinguish between normal and intoxicated states of a person as the basis of the sensing system.

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  • Developement of flexible gas fuel engine system

    Yudai YAMASAKI, Yukihiro NISHIZAWA, Shigehiko KANEKO

    Journal of System Design and Dynamics   Vol. 5 ( No.1 ) 125 - 138  2011  [Refereed]

     View Summary

    In this study, the authors aim to develop a small gas engine system for biomass gas by modifying the control system of a conventional spark ignition engine. Before developing a control algorithm, combustion experiments with various component fuels assumed to have the components of real biomass gases, such as fermentation and pyrolysis gases, were carried out. It was clarified that the relationship between dimensionless combustion duration and equivalence ratio can be expressed by a first-order linear function regardless of fuel composition. Indicated thermal efficiency can also be expressed by combustion duration and volumetric efficiency when the coefficient of variation of indicated mean effective pressure is lower than 5% and pumping loss decreases against volumetric efficiency linearly, and the relationship between combustion duration and MBT can also be expressed by a first-order function. By using these relationships, a gas engine control algorithm, which can define the target values of the equivalence ratio of a premixture and ignition timing that realize a high thermal efficiency for fuel compositions automatically by analyzing in-cylinder gas pressure data in real time, is developed in order to use gaseous fuels produced from biomass resources effectively. Thus, a biomass gas fuel engine system is developed by applying the algorithm to an automobile gasoline engine, hardware modifications of which are only the fuel supply system and flywheel. The engine system is connected to a gasification plant using wood chips and an operation test is carried out. As a result, the engine system can set an optimum premixture condition and an ignition timing, which realizes a stable and high-thermal-efficiency operation automatically.

    DOI CiNii

  • Prediction of Dynamic Coefficients of Bump-Type Foil Bearings with Bump Considered as Link-Spring Structure

    Kai Feng, Shigehiko Kaneko

    Tribology Online   Vol.6 ( 1 ) 10 - 18  2011  [Refereed]

     View Summary

    Bump-type foil bearings have demonstrated excellent performance in service experiences in recent 30 years. Due to their special structures, the performance prediction models must couple the air pressure with the elastic deflection of the compliant foil structure. The solution of air pressure has been well settled in the hydrodynamic lubrication theory, while the deflection of foils now still cannot be accurately solved due to the mechanical complexity of the corrugated bump structure. A theoretical model, link-spring model, was developed to predict the structure characteristics of foil strips in a previous work. Effects of four factors, i.e., the elasticity of the bump foil, the interaction forces between bumps, the friction forces at contact surfaces, and the local deflection in the top foil, had been taken into consideration. In this investigation, based on the link-spring model, a perturbation approach is used to determine the dynamic characteristics of bump-type foil bearings. The calculations have been performed with different meshes. And the accordant results show that the calculation is independent on the mesh. The effects on the dynamic coefficients of the friction forces and radial clearance are also evaluated using the perturbation method.

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  • Analytical Model of Bump-Type Foil Bearings Using a Link-Spring Structure and a Finite-Element Shell Model

    Kai Feng, Shigehiko Kaneko

    JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME   132 ( 2 ) 21706(11 pages)  2010.04  [Refereed]

     View Summary

    A complete analytical model of bump-type foil bearings taking into consideration the effects of four factors, i.e., the elasticity of bump foil, the interaction forces between bumps, the friction forces at the contact surfaces, and the local deflection of top foil, is presented in this investigation. Each bump is simplified to two rigid links and a horizontally spaced spring, the stiffness of which is determined from Castigliano&apos;s theorem. The interaction forces and the friction forces are coupled with the flexibility of bumps through the horizontal elementary spring. The local deflection of the top foil is described using a finite-element shell model and added to the film thickness to predict the air pressure with Reynolds&apos; equation. The bump deflections of a strip with ten bumps calculated using the presented model under different load distributions are consistent with the published results. Moreover, the predicted bearing load and film thickness obtained from a foil bearing with a bump circumferential extend of 360 deg also agree very well with the experimental data, especially for predictions with a proper selection of radial clearance (preload of foil structure) and friction coefficients. In addition, the radial clearance and friction force variations in the foil bearing are noted to significantly change the performance of the foil bearing. The predictions demonstrate that the radial clearance of the foil bearing has an optimum value for the maximum load capacity. [DOI: 10.1115/1.4001169]

    DOI

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  • Development of Micro Gas Turbine Generator Fueled by Biomass Gas

    Shigehiko Kaneko, Yudai Yamasaki, Tatsuo Watanabe

    Renewable Energy 2010 Proc., O-Ps-1-5, CD    2010

  • Control of Micro Gas Turbine Generator Fueled by Biomass Gas

    Shigehiko Kaneko, Yudai Yamasaki

    MOVIC    2010  [Refereed]

  • Development of fuel flexible gas engine system

    Yudai Yamasaki, Yukihiro Nishizawa, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B   76 ( 764 ) 684 - 690  2010  [Refereed]

     View Summary

    In this study, the authors aim to develop a small gas engine system for biomass gas by modifying the control system of a conventional spark ignition engine. Before developing a control algorithm, combustion experiments with various components fuels assuming component of real biomass gases like as fermentation gas and pyrolysis gas were carried out. It was clarified that the relationship between dimensionless combustion duration and equivalence ratio is expressed in first order liner function regardless of fuel components. Indicated thermal efficiency can be also expressed by combustion duration and volumetric efficiency under the condition that COV of IMEP was lower than 5% and pumping loss decreased against volumetric efficiency linearly, and the relationship between . combustion duration and MBT can also be expressed in first order function. By using these relationships, a gas engine control algorithm, which can define target values of equivalence ratio of premixture and ignition timing realizing high thermal efficiency for fuel compositions automatically analyzing in-cylinder gas pressure data in real time, is developed in order to use gaseous fuels produced from biomass resources effectively. Thus, biomass fueled gas engine system is developed by applying the algorithm to the automobile gasoline engine, hardware modification of which were only fuel supply system and flywheel. The engine system was connected to a gasification plant using wood chip and operation test was carried out. As a result, the engine system could set optimum premixture condition and ignition timing, which realized stable and high thermal efficiency operation automatically.

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  • PRESSURE PULSATIONS IN A DRUM EXCITED BY A CENTRIFUGAL COMPRESSOR CONNECTED TO A PIPING SYSTEM

    Itsuro Hayashi, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING - 2010 - VOL 3, PTS A AND B     757 - 766  2010  [Refereed]

     View Summary

    The characteristics of the pressure pulsations in a drum connected to a piping system excited by a centrifugal compressor or a blower operated at blade-passing frequencies were investigated. In this study, the equivalent resistance of a compressor and that of a piping system were introduced and linked to the three dimensional calculation model, so that the non-linear damping proportional to velocity squared in the system is properly incorporated. The experiment was performed in order to validate the proposed simulation model.
    As a result, the three dimensional pressure response in the drum as well as the pipe can be well evaluated by this model. Furthermore, the effect of the acoustic dynamic absorber on the pressure pulsations in the pipe and drum is evaluated. When the resonant frequency of the pipe coincides with that of the drum, two peaks appear in the frequency response curve around the resonant frequency of the pipe, because the drum acts as an acoustic dynamic absorber. It is shown that the maximum pressure amplitude in the drum is obtained when the resonant frequency of the pipe is slightly shifted from the resonant frequency of the drum under the small damping conditions. The effect of the damping in the drum and the mode shape of the drum on the maximum pressure amplitude in the drum is discussed in detail.

  • EFFECT OF BIFURCATION ON PULSE WAVE PROPAGATION IN HUMAN ARTERIES

    Yusuke Kawai, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING - 2010 - VOL 3, PTS A AND B     983 - 989  2010  [Refereed]

     View Summary

    In recent years, arteriosclerotic cardiovascular disease becomes a serious problem in the developed countries. The degree of the arteriosclerosis should be examined routinely and invasively, and the measurement of pulse wave is considered as an effective estimation method. Nowadays, pulse wave is widely used in clinical practice as a noninvasive method of examining circulatory kinetics, but the mechanism in the process of the systolic wave generated at heart and propagating to the peripheral artery remains to be elucidated. In this research, to investigate the effect of bifurcation on pulse wave propagation, numerical simulations by a dynamic model of arteries and in vitro experiments were conducted. A one-dimensional model of arteries is coupled by partial differential equations describing mass and momentum conservation with the tube law that relates the local cross-sectional area to the local radial pressure difference. In the case of a bifurcated artery model, the governing equations were solved by introducing the momentum caused by the reactive force at bifurcation into the equation of momentum conservation. The momentum by the reactive force at bifurcation was supposed to be proportional to the momentum flowing into the bifurcation, and the proportionality coefficient was derived from experiments. Then, the proposed one-dimensional model was validated by a comparison to experimental data. In the experimental setup, elastic tubes with different values of Young's modulus were tested to simulate human arteries. From the numerical and experimental results, it turns out that the characteristic waveforms of the pressure and velocity obtained from experiments are also captured by the numerical calculations.

  • Parametric studies on static performance and nonlinear stability of bump-type foil bearings

    Kai Feng, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   76 ( 765 ) 1249 - 1257  2010  [Refereed]

     View Summary

    A theoretical analysis is presented to investigate the nonlinear dynamic behavior, i.e., the stability and unbalance response of bump-type foil bearings. The link-spring model, presented and validated in a previous study, is used to describe the foil structure of bump-type foil bearings in this research. The orbit of the shaft is simulated from the iteration calculation of the motion equation at each time step, which is coupled to the Reynolds' equation and the foil structure model. Parametric studies on the mumber of bumps, the size of bumps, the thickness of the foils and the material of the foils are presented using the bearing load prediction and the nonlinear orbit simulations. The static loads of the foil bearing with various parameters are predicted to find out some guidelines for the design of foil bearings. The critical speeds of the rotor with a certain bearing load are also calculated. The analysis on unbalance response is presented by depicting journal trajectories as a function of mass unbalance. And the FFT analysis of the computed results is performed to show the variation of amplitudes in frequency domain.

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  • Parametric Studies on Static Performance and Nonlinear Instability of Bump-Type Foil Bearings

    Kai Feng, Shigehiko Kaneko

    JSME Journal of System Design and Dynamics   Vol.4 ( No.6 ) 871 - 883  2010  [Refereed]

     View Summary

    A theoretical analysis model is presented to investigate the nonlinear dynamic behavior of bump-type foil bearings, i.e., the instability and unbalance response. In the developed model, the foil structure of bump-type foil bearings was simulated using the link-spring model, which was presented and validated in a previous study. During the calculation, the Reynolds equation and the foil structure model were coupled though the pressure and film thickness. An iteration solution method with the equation of shaft motion was applied for the shaft orbit. Parametric studies of design parameters, such as the bump number, the length ratio of the segment between two bumps and a bump, the foil thickness, the bump height, and the Young's Modulus, were presented upon the analysis of static performance and the instability of bump-type foil bearings. It is noted that more bumps or lager length ratio lead to larger load capacity. But the bearing load capacity does not change with different bump heights. Moreover, the threshold speed of instability decreases significantly with the rise of the bump number, especially when the number of bumps is low. However, it almost does not affect by other four parameters.

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  • バンプ型フォイル軸受の静特性と安定性に対するフォイル設計変数の影響

    馮 凱, 金子成彦

    日本機械学会論文集(C編)   76巻 ( 765号 ) 1249 - 1257  2010  [Refereed]

  • マイクログリッドにおけるガスエンジンの動特性

    菅野雅信, 赤石誉幸, 山崎由大, 金子成彦

    日本機械学会論文集(B編)   76巻 ( 763号 ) 403 - 405  2010  [Refereed]

  • 多様な燃料組成に対応可能な小型ガスエンジンシステムの開発

    山崎由大, 西澤幸紘, 金子成彦

    日本機械学会論文集(B編)   76巻 ( 764号 ) 684 - 690  2010  [Refereed]

  • Influence of H_2 and CO of Biomass Gas Fuel on Ignition and Combustion in HCCI Engine(Thermal Engineering)

    YAMASAKI Yudai, KANNO Masanobu, TAURA Yasuhiro, KANEKO Shigehiko

    Transactions of the Japan Society of Mechanical Engineers Series B   76巻 ( 761号 ) 135 - 141  2010  [Refereed]

     View Summary

    Aiming to understand applicable component of biomass gas to HCCI engines, combustion characteristics were investigated experimentally for mock biomass gas with varying fuel components. Mock biomass gases consisted of H_2, CH_4, CO, N_2 and CO_2 were used assuming wood pyrolysis gases. Using modified gas engine with air inlet heaters and high compression ratio pistons, experiments were carried out. Auto-ignition timing is temperature domain regardless of fuel component, ignition temperature is about 1000K as same as hydrocarbon fuels. Combustion speed following auto-ignition is influenced largely on H_2 and CO_2 content, it is clarified that combustion speed is proportional to H_2 and CO_2 ratio of fuel. Meanwhile CO of fuels does not effect on combustion speed. H_2 and CO_2 ratio of fuel is also largely concerned with knock, and it is one of index of minimum IMEP that knock yield. About Exhaust emissions, THC and CO is higher level because of lower cyclic maximum temperature for inert component of fuel, in another hand, NO_x is near zero regardless of fuel components and operation conditions.

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  • J0801-3-1 Operation of HCCI Engine using Mixture of City GAS 13A and Biomass Gas

    SHINODA Haruto, MIZUNO Saori, YAMASAKI Yudai, KANEKO Shigehiko

    The proceedings of the JSME annual meeting   2010   177 - 178  2010

     View Summary

    Biomass, a renewable and carbon-neutral energy source, is widely recognized as an alternative to fossil fuels. But, because of the supply instability, it is hard to use Biomass as a single fuel in Engine. In this study, the combustion characteristics of a HCCI Engine using Mixture of City gas 13A and Biomass gas are investigated. As a result, it is noted that the ignition timing advances and the combustion duration becomes longer, when the ratio of 13A decrease and/or the intake gas temperature becomes higher. Moreover, it is suggested that the effect of H_2 on the ignition timing is more significant than other combustible components.

    DOI CiNii

  • J0504-2-5 The axial vibration characteristics of a centrifugal turbopump rotor

    TOMINAGA Yuta, KANEKO Shigehiko

    The proceedings of the JSME annual meeting   2010   85 - 86  2010

     View Summary

    Axial vibration characteristics of centrifugal turbopumps are extremely complex. In the balance piston system, the axial vibration due to flow passing through the balance orifice occurs in some cases. Normally, the swirl flow may suppress the axial self-excited vibrations. But the mechanism is unclear. Therefore, in this study, we manufactured an experimental apparatus including a partial model of the balance piston in the centrifugal turbopump, and the effects of swirl flow on the vibration performance of the balance piston in the centrifugal turbopump are investigated. As a result, it is noted that the peak value on displacement from FFT at 120Hz decreases as the swirl flow increases.

    DOI CiNii

  • Dynamic characteristic of gas engine in micro grid

    M. Kanno, Takayuki Akaishi, Yudai Yamasaki, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B   76 ( 763 ) 403 - 405  2010  [Refereed]

     View Summary

    To realize stable operation of microgrids, gas engines require to compensate load changes from demands and variation of other renewable energy devices. Then, prehension of load following capability is important in gas engines. In addition, when biomass gas is supplied to gas engines, effect of fuel component variation on dynamic characteristics must be investigated, because components of biomass gas depend on operating condition of gasification or raw material. This study proposed a dynamic simulation model of gas engine and estimated transient response to load changes. Load changes were sinusoidal wave, and bias value, amplitude and frequency of them were varied. As a result, the frequency has more influence on transient response than the bias value and the amplitude. When biomass gas is supplied to gas engines, transient response is worce than city gas over the frequency of 0.1 Hz.

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  • Development of a System for Capturing Sleep Predictor Signals during Wakefulness

    E. Fujita, Y. Ogura, N. Ochiai, K. Murata, T. Kamei, Y. Ueno, S. Kaneko

    WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING, VOL 25, PT 4: IMAGE PROCESSING, BIOSIGNAL PROCESSING, MODELLING AND SIMULATION, BIOMECHANICS   25   1804 - 1807  2010  [Refereed]

     View Summary

    The feature of sleep pattern is determined by the rhythm of body temperature. In this study, a method was conceived for capturing changes in the peripheral circulatory system during the process of lowering of core body temperature via finger plethysmogram. Recorded signals were then analyzed by chaos analysis. By analyzing the variations in the time series of the gradients of the largest Lyapunov exponent and the power value (the square of the finger plethysmogram amplitude), and by observing the conditions of the subject, the phenomenon that predicts the subject's transition to Stage 1 sleep during wakefulness was detected.

  • Thermohydrodynamic Study of Multiwound Foil Bearing Using Lobatto Point Quadrature

    Kai Feng, Shigehiko Kaneko

    JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME   131 ( 2 ) 021702-1 - 021702-9  2009.04  [Refereed]

     View Summary

    The applications of foil air bearings have been extended for use in a wide range of turbomachineries with high speed and high temperature. Lubricant temperature becomes an important factor in the performance of foil air bearings, especially at high rotational speeds and high loads or at high ambient temperature. This study presents a thermohydrodynamic (THD) analysis of multiwound foil bearing, in which the Reynolds' equation is solved with gas viscosity as a function of temperature that is obtained from the energy equation. Lobatto point quadrature is utilized to accelerate the iteration process with a sparse mesh across film thickness. A finite element model of the foil is used to describe the foil elasticity. An iterative procedure is performed between the Reynolds equation, the foil elastic deflection equation, and the energy equation until convergence is achieved. A three-dimensional temperature prediction of air film is presented, and a comparison of THD to isothermal results is made to emphasize the importance of thermal effects. Finally, published experimental data are used to validate this numerical solution.

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    29
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  • Combustion characteristics of flameless combustion in a small size gasturbine combustor fuelled by low calorific gas

    M.Tanaka, S.Hayashi, M.Hiramatsu, S.Kaneko, Y.Yamasaki

    Proceedings of Asian congress on gas turbines 2009, University of Tokyo, Tokyo, Japan    2009

  • Calculation model of bump-type foil bearing with shell and link-spring structure

    K. Feng, S. Kaneko

    Proceedings of Asian congress on gas turbines 2009, University of Tokyo, Tokyo, Japan    2009

  • Prediction of Static Performance of Bump-Type Foil Bearings and Validation

    Kai Feng, Shigehiko Kaneko

    ADVANCED TRIBOLOGY     940 - 941  2009

     View Summary

    Foil Air bearings offer many advantages enabling high performance oil-free turbomachinery practicable, i.e. design simplicity, high speed and temperature capability, low power loss and environmental friendship. Experimental and analytical investigations have been performed extensively in recent decades, especially for bump-type foil bearing. However, by now, the low load capacity and deficient damping limit their wide applications in rotor systems.
    This paper presents an elasto-aerodynamic model for the static performance of bump-type foil bearings by taking the interacting forces between bumps, the friction forces at contact surfaces, and the local deflection of top foil into account. A finite element model is developed to describe the foil elasticity, while the compressible Reynolds&apos; equation is solved for the air pressure distribution. An iterative procedure is carried out between the above two equations until the convergence is achieved. Published experimental data are used to validate the numerical model. The predicted static load and film thickness of the bump-type foil bearing using this model are very closed to the experimental data.

    DOI

  • Study on Biomass Gas HCCI Engine

    Yudai Yamasaki, Masanobu Kanno, Yasuhiro Taura, Shigehiko Kaneko

    SETC2009     2009-32-0066 / 20097066  2009  [Refereed]

  • OPERATION OF MICRO GAS TURBINE SYSTEM EMPLOYING TWO STAGE COMBUSTION OF BIOMASS GAS

    Yudai Yamasaki, Yukinori Okada, Kazuki Iijima, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME TURBO EXPO 2009, VOL 1     459 - 468  2009  [Refereed]

     View Summary

    A two-axis, recuperated cycle micro-gas turbine (MGT) system for biomass gas is developed. The rated specifications of the MGT are as follows, pressure ratio of 2.7, turbine inlet temperature of 1120K, and output power of 5kW. The system consists of three components: the MGT power-generating system, control system and mock biomass gas supply system. The original two-stage combustor and H infinity system controller used in this system are discriminative. Since the gaseous fuel converted from biomass has a low heat quantity, the combustor is designed to achieve both high combustion efficiency and low NOx emission for lower calorific fuel. In the combustor, a stable tubular flame combustion of city gas in the first stage supplies burned gas, which has enthalpy and activated radicals, to the second stage and enables stable ignition and combustion of biomass gas and air premixture. In addition, because the gas composition of biomass gas is also affected by the sources, the gasification method, and the gasifying condition, the system controller is required to absorb fuel fluctuation while meeting the demanded output. Hence, the H infinity algorithm is employed as a system controller because of its robustness against disturbances from the unpredictable fuel component fluctuation. Using this MGT system, an operation test was earned out with mock biomass gases. The rotational speed of the power turbine could be kept almost constant with both mock fermentation gas and pyrolysis gas as the second-stage fuel, and NOx emission was 50ppm when load was increased to a rated power of 5kW. When the second-stage fuel composition changed from 100% methane to 50% methane and 50% CO(2) at a certain speed, the power turbine speed could also be kept constant. The H infinity controller is compared with the 2-DOF PID controller for secondary fuel concerning the response to varying load. The former shows slightly better performance than the 2-DOF PID controller.

  • Prediction of Dynamic Coefficients of Bump-Type Foil Bearing with Bump Considered as Link-Spring Structure

    Kai Feng, Shigehiko Kaneko

    World Tribology Congress, Kyoto, Japan   6 ( 1 ) WTC2009-90791 - 18  2009  [Refereed]

     View Summary

    Bump-type foil bearings have demonstrated excellent performance in service experiences in recent 30 years. Due to their special structures, the performance prediction models must couple the air pressure with the elastic deflection of the compliant foil structure. The solution of air pressure has been well settled in the hydrodynamic lubrication theory, while the deflection of foils now still cannot be accurately solved due to the mechanical complexity of the corrugated bump structure. A theoretical model, link-spring model, was developed to predict the structure characteristics of foil strips in a previous work. Effects of four factors, i.e., the elasticity of the bump foil, the interaction forces between bumps, the friction forces at contact surfaces, and the local deflection in the top foil, had been taken into consideration. In this investigation, based on the link-spring model, a perturbation approach is used to determine the dynamic characteristics of bump-type foil bearings. The calculations have been performed with different meshes. And the accordant results show that the calculation is independent on the mesh. The effects on the dynamic coefficients of the friction forces and radial clearance are also evaluated using the perturbation method.

    DOI CiNii

  • LINK-SPING MODEL OF BUMP-TYPE FOIL BEARINGS

    Kai Feng, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME TURBO EXPO 2009, VOL 6, PTS A AND B     711 - 723  2009  [Refereed]

     View Summary

    The field experiences of gas foil bearings (GFBs) from the 1960s prove that GFBs offer several advantages over traditional oil bearings and rolling element bearings. They have the potential to be applied in a wide spectrum of turbomachinery. Bump-type foil bearings, which are considered as the best structure for GFBs, can be simply described as a hydrodynamic bearing utilizing the ambient air as the lubricant and a smooth shell supported by a corrugated bump foil as the bearing surface. However, the performance predictions of bump-type foil bearings are difficult due to mechanical complexity of the support elastic structure, especially for the effects of four factors, elasticity of bump foil, interaction forces between bumps, friction forces at contact surfaces, and local deflection of top foil. In this investigation, an analytical model of bump-type foil bearings considering the effects of all above factors is presented. In this model, each bump of the bump strip is simplified to two rigid links and a horizontally spaced spring, whose stiffness is determined from Castigliano&apos; theorem. Then, interaction forces and friction forces can be coupled with the bump flexibility though the horizontal elementary spring. The local deflection of top foil is described using a Finite Element model and added to the film thickness for the pressure prediction with the Reynolds&apos; equation.
    The bump deflections of a strip with ten bumps under different load distributions are calculated with the presented model and the predictions show consistency with published results. Moreover, the predicted bearing load and film thickness of a full bump-type foil bearing using this model are very close to the experimental data. Also, radial clearance and friction force variations in the foil bearing are noted to change the stiffness of bump significantly. And the predictions from the calculation with a proper selection of radial clearance and friction coefficients show extremely good agreement with the experimental data.
    The assumption of minimum reachable film thickness is based on experimental data to determine the load capacity of bearing. The results demonstrate that the radial clearance of foil bearing has an optimum value for the maximum load capacity.

  • DEVELOPMENT OF TECHNOLOGIES FOR ELIMINATING HIGH-LEVEL NOISE EMITTING VEHICLES ON JAPANESE ROADS

    Masao Ishihama, Shigehiko Kaneko, Minoru Kamata, Takeharu Tanaka, Ichiro Sakamoto

    IMECE 2008: TRANSPORTATION SYSTEMS, VOL 17     239 - 246  2009  [Refereed]

     View Summary

    The purpose of the present study is to improve the on-street exhaust noise measurement technique for regulating vehicles that emit unacceptably large exhaust noise. The method under development uses racing operation of engines with a wide-open throttle on a standing vehicle. In contrast, the engine operation condition considered in the conventional on-street measurement technique considers operation at 75% of rated power followed by the throttle valve being released to its original position. The current regulation considers the maximum noise level during this engine operation condition. Accordingly, the engine is not loaded during testing. This loading condition provides unsatisfactory correlation between the exhaust noise level measured by the on-street method and the ISO vehicle acceleration noise under the wide-open throttle condition. The present paper reports the advantages of the proposed method as well as some important factors in the proper application of the newly proposed method. In the present study, we perform noise measurement along highways, a vehicle experiment in an anechoic chassis dynamometer, and computer simulations. The results revealed that the proposed on-street measurement method can be used to approximately determine the exhaust noise level during full acceleration for most vehicle types. In addition, the sensitivities of the measured noise levels for the testing conditions were clarified. The second item in this study is efficient engine speed measurement using exhaust sound signal only without electric wire harnessing. A survey of the measurement systems proposed by three different companies revealed that the measurement principles of two of these systems have potential application to on-street exhaust measurement.
    The last item investigated herein is better indices of exhaust noise evaluation. Loudness defined by ISO was found to be much better than the conventional dB(A) scale in terms of correlation with subjective evaluation results.

  • Calculation of Dynamic Coefficients for Multiwound Foil Bearings

    Kai FENG, Shigehiko KANEKO

    Journal of System Design and Dynamics, JSME   Vol.3 ( No.5 ) 841 - 852  2009  [Refereed]

     View Summary

    Dynamic performance of multiwound foil bearings with the effects of foil local deflection is investigated. The foils, separated and supported by projections on the ir surface are treated as thin plates. Deflections of the foils are solved with a finite element model. The air pressure is calculated with the Reynolds' equation by treating the lubricant as an isothermal idea gas. The effects of foils are simulated with the deflection of top foil added to the film thickness. A finite difference computer program is developed to solve the Reynolds equation and the elastic deflection equation, simultaneously. Perturbation method is used to determine the dynamic coefficients. The effects of foil deflection is discussed by comparing the dynamic coefficients of a foil bearing and a rigid bearing. Experimental data from a test rig supported by two multiwound foil bearings are used to validate this numerical solution.

    DOI CiNii

  • HCCIエンジンにおけるバイオマスガスの着火燃焼特性

    山崎由大, 菅野雅信, 西澤幸紘, 永田裕樹, 金子成彦

    日本機械学会論文集(B編)   75巻 ( 751号 ) 482 - 483  2009  [Refereed]

  • 自動車用エンジン転用によるバイオマスガスエンジンの開発

    西澤幸紘, 山崎大輔, 永田裕樹, 山崎由大, 金子成彦

    日本機械学会論文集(B編)   75巻 ( 751号 ) 485 - 487  2009  [Refereed]

  • 二段燃焼を用いたマイクロガスタービン発電システムのバイオマスガスによる運転

    岡田幸順, 飯島一樹, 山崎由大, 金子成彦

    日本機械学会論文集(B編)   75巻 ( 751号 ) 488 - 489  2009  [Refereed]

  • Combustion Characteristics of Low-Calorific-Value Gaseous Fuels in Small Gas Engine

    Yudai YAMASAKI, Go TOMATSU, Yuki NAGATA, Shigehiko KANEKO

    JSME Journal of Environment and Engineering   Vol. 4 ( No.1 ) 188 - 197  2009  [Refereed]

     View Summary

    Biomass resources are one of the attractive alternative fuels. It is effective to use such fuel in distributed power generation system with gas engine because it disperses. However, its calorific value is low, and the gas composition is affected by the source material, gasification method and gasifying conditions, causing it to change momentarily during engine operation. The gas engine must be stable and capable of high-thermal-efficiency operation under such fluctuations. The objective of this study is to develop a small gas engine system for biomass gaseous fuel. In this study, the effect of fuel composition on combustion was clarified by an engine experiment with low-calorific-value gaseous fuel. Diluted fuel exhibited longer combustion duration and lower thermal efficiency, but not necessarily a lower calorific value. It was also confirmed that spark timing control against fuel composition fluctuation was effective for maintaining high thermal efficiency even at a fixed speed engine. Fuels containing H2 also have lower calorific values, but they allow stable engine operation and higher thermal efficiency with respect to a shorter combustion duration.

    DOI CiNii

  • G0801-1-3 Control of two shaft axial micro gas turbine generator system based on dynamic model

    KANEKO Shigehiko, IIJIMA Kazuki, WATANABE Tatuo, YAMASAKI Yudai

    The proceedings of the JSME annual meeting   2009   145 - 146  2009

     View Summary

    In this study, to establish the methodology for controlling the rotational speed of two shaft axial micro gas turbine generator system, modeling strategy of static and dynamic characteristics of the system based on nonlinear model is proposed. This model is constructed based on the combination of measured data and correction factors and does not rely on compressor and turbine map, which yields better prediction results with higher accuracy. To investigate the stability and robustness of the system, H infinity algorithm is employed as a system controller. The difference on controller performance designed based on the dynamical modeling of the target system and the measured data is discussed.

    DOI CiNii

  • J0801-1-6 The Effect of Fuel Composition of Biomass Gas on HCCI Combustion

    TAURA Yasuhiro, YAMASAKI Yudai, KANEKO Shigehiko

    The proceedings of the JSME annual meeting   2009   151 - 152  2009

     View Summary

    Biomass is expected to be a renewable energy that can replace fossil fuels and it is considered of value to use biomass to generate electricity by a HCCI engine. However the combustion characteristics of a HCCI engine fueled by biomass gas is not investigated yet. Therefore, the requirement of biomass gas composition that can appropriately achieve the HCCI combustion is experimentally clarified. As a result, it is confirmed that the ratio of H_2 to CO_2 concentration represents the combustion characteristic of a HCCI engine. And also, the fact that the ratio of H_2 to CO_2 can be an indicator of the operating range without causing the knock is shown.

    DOI CiNii

  • Operation of micro gas turbine system employing two stages combustion by using biomass gas

    Yukinori Okada, Kazuki Iijima, Yudai Yamasaki, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B   75 ( 751 ) 488 - 489  2009  [Refereed]

     View Summary

    The micro gas turbine (MGT) system for the biomass gas has been constructed. This system consists of MGT power generation system, mock biomass gas supply system and control system. The features technologies in this system are two-stage combustor and H infinity system controller. The combustor achieves both higher combustion efficiency and lower NOx emission, in which a stable tubular flame combustion of the first stage supplies burned gas to the second stage and causes stable ignition and combustion of biomass gas and air pre-mixture. H infinity algorithm is employed as a system controller for its robustness for disturbances like as unpredictable fuel component fluctuation. By using this MGT system, operation test was carried out with mock biomass gas. Rotational speed of the power turbine could be kept constant with both fermentation gas and pyrolysis gas, and NOx emission was low. The speed could be also kept constant, even when the fuel composition or load changed.

    DOI

    Scopus

  • Ignition and combustion characteristics of biomass gas in a HCCI Engine

    Yudai Yamasaki, Masanobu Kanno, Yukihiro Nishizawa, Yuki Nagata, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B   75 ( 751 ) 482 - 484  2009  [Refereed]

     View Summary

    Auto-ignition and combustion characteristics of biomass gas were investigated experimentally. Mock biomass gas consisted of H2, CH4, CO, N2 and CO2, was used assuming a wood pyrolysis gas. A test engine was a 3-cylinder 1.6 L gas engine modifying compression ratio from 9.5 to 24 and equipping the intake air heating system. Experiments were carried out by varying equivalence ratio and fuel composition. The engine could realize auto-ignition and combustion at higher thermal efficiency with mock biomass gas, IMEP was 0.28 MPa and indicated thermal efficiency was 37% at 600 rpm. The knock did not cause at higher equivalence ratio over 0.4, because the fuel had much dilution components, which made combustion speed slower like as EGR. Higher hydrogen content caused the combustion speed to be high, but it did not influence on the ignition timing. On the contrary, the high carbon monoxide content retarded ignition timing, but it did not influence on the combustion speed. Auto-ignition temperature of biomass gas was from 1 000 K to 1 050 K as same as hydrocarbon fuels.

    DOI

    Scopus

    3
    Citation
    (Scopus)
  • Development of a biomass gas engine by diverting an automotive engine

    Yukihiro Nishizawa, Daisuke Yamazaki, Yuki Nagata, Yudai Yamasaki, Shigehiko Kaneko

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B   75 ( 751 ) 485 - 487  2009  [Refereed]

     View Summary

    In order to use biomass resources efficiently, a small-size gas engine in a small-distributed generation system is one of the effective methods. However, existing gas engines for energy generation are too big to use in small-distributed generation systems and very expensive. So, diverting automotive engines is sensible solution because of their low cost. On the other hand, the composition of biomass gas generated from gasification plants is affected not only by the source and the gasification method but also by the gasification condition. Therefore, we aimed to develop a low cost and small size biomass gas engine by diverting an automotive engine with original control system. The intake system of the automotive gasoline engine was changed to two throttles in order to control both fuel and air flow rate respectively. The control system was constructed by assuming to use various fuels whose composition can fluctuate. Operational test was carried out by using real biomass gas from the gasification plant. As results, engine speed and air fuel ratio were stably controlled and the engine output achieved 19 kW.

    DOI

    Scopus

  • Noninvasive biological sensor system for detection of drunk driving

    Shigeyuki Kojima, Shinitirou Maeda, Yumi Ogura, Etsunori Fujita, Kohji Murata, Tsutomu Kamei, Toshio Tsuji, Shigehiko Kaneko, Masao Yoshizumi

    2009 9TH INTERNATIONAL CONFERENCE ON INFORMATION TECHNOLOGY AND APPLICATIONS IN BIOMEDICINE     168 - +  2009  [Refereed]

     View Summary

    Systems capable of monitoring the biological condition of a driver and issuing warnings during instances of drowsiness have recently been studied. Moreover, many researchers have reported that biosignals, such as brain waves, pulsation waves, and heart beat are different between people who have and have not consumed alcohol. Currently, we are developing a noninvasive system to detect individuals driving under the influence of alcohol by measuring biosignals. In this paper, a new algorithm to distinguish between the normal and intoxicated state of a person is proposed as the basic theory of the sensing system.

  • Development of a technique for capturing Sleep Predictor Signals during wakefulness

    E. Fujita, Y. Ogura, N. Ochiai, K. Murata, T. Kamei, Y. Ueno, S. Kaneko

    JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS   10 ( 5 ) 1251 - 1256  2008.05  [Refereed]

     View Summary

    The feature of sleep pattern is determined by the circadian rhythm that is typified by the rhythm of body temperature and homeostasis. In this study a method was conceived for capturing changes in the peripheral circulatory system during the process of lowering of core body temperature via finger plethysmogram. Recorded signals were then analyzed by chaos analysis. By analyzing the variations in the time series of the gradients of the largest Lyapunov exponent and the power value (the square of the finger plethysmogram amplitude), and by observing the conditions of the subject, the phenomenon that predicts the subject's transition to Stage 1 sleep during wakefulness was detected. These predictive signals for falling asleep can be found when the amplitude of the power gradient was in transition, and when the largest Lyapunov exponent's gradient and the power gradient have an inverse phase with 180 degrees.

  • Simplified appraisal method for fatigue on sitting for extended periods by using finger plethysmogram

    E. Fujita, Y. Ogura, N. Ochiai, T. Kamei, K. Murata, Y. Ueno, Shigehiko Kaneko

    JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS   10 ( 5 ) 1290 - 1294  2008.05  [Refereed]

     View Summary

    For the purpose of quantifying and indicating the degree of fatigue as a result of sifting in an automobile seat for long periods of time, a method was developed by using a baseline oscillation and the amplitude of a finger plethysmogram. Between a finger plethysmogram and the degree of fatigue, there is about one hundred times difference in a fluctuation cycle. So, an idea was proposed to convert a finger plethysmogram into a gradient of comprehensive change to make fluctuation cycle scales easily comparable. The gradients of the square of the finger plethysmogram amplitude were converted into absolute values. Then, we drew a fatigue curve based on the results calculated at 18-second integrated values of the time series signals. This curve and the muscle fatigue curve from subjective judgment were in general accord. By using a finger plethysmogram featuring high sensitivity to the fatigue progress, differences in various subjects and seat performances could be found on this fatigue curve using only a 30-minute fatigue test. This new method has made it possible to greatly shorten the measurement time necessary to predict fatigue level by sensory evaluation.

  • A Study of Engine Operation System with Pyrolysis Gas from Wood Biomass

    Yukihiro Nishizawa, Yuki Nagata, Yudai Yamasaki, Shigehiko Kaneko

    The 7th JSME-KSME Thermal and Fluids Engineering Conference, D213    2008

  • Development of the Drive Dozing Prevention Technique Using a Sensor Installed in the Seat for Detecting the Driver’s Condition

    Shigehiko Kaneko, Masato Enokizono, Tsutomu Kamei, Etunori Fujita

    ERST 2008.1, Tolouse, CD-ROM    2008

    CiNii

  • A STUDY OF THERMOHYDRODYNAMIC FEATURES OF MULTI WOUND FOIL BEARING USING LOBATTO POINT QUADRATURE

    Kai Feng, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME TURBO EXPO 2008, VOL 5, PT A     911 - 922  2008  [Refereed]

     View Summary

    The applications of foil air bearings, which are recognized to be the best choice for oil free applications, have been extended for use in a wide range of turbo-miachineries with high speed and high temperature. Lubricant temperature becomes an important factor in the performance of foil air bearings, especially at high rotational speeds and high loads or at high ambient temperature ([1]). However, most of the published foil air bearing models were based on the isothermal assumption. This study presents a thermohydrodynamic analysis (THD) of Multi Wound Foil Bearing (MWFB), in which the Reynolds&apos; equation is solved with the gas viscosity as a function of temperature that is obtained from the energy equation. Lobatto point quadrature, which was proposed by Elrod and Brewe ([10]) and introduced into compressible calculation by Moraru and Keith ([15]), is utilized to accelerate the iteration process with a sparse mesh across film thickness. A finite element model of the foil is used to describe the foil elasticity. An iterative procedure is performed between the Reynolds&apos; equation, the foil elastic deformation equation and the energy equation, until the convergence is achieved. A three-dimensional temperature prediction of air film is presented and a comparison of THD to isothermal results is made to emphasize the importance of thermal effects. Finally, published experimental data are used to validate this numerical solution.

  • CHARACTERISTICS OF PRESSURE PULSATIONS IN PIPING SYSTEMS EXCITED BY A CENTRIFUGAL COMPRESSOR

    Itsuro Hayashi, Shigehiko Kaneko

    FLOW-INDUCED VIBRATION     563 - +  2008  [Refereed]

     View Summary

    To establish the practical evaluation method of the pressure pulsations excited by a centrifugal compressor or fan at blade passing frequency, a one-dimensional excitation source model for a compressor was proposed based on the equation of motion. The damping characteristics of the compressor were investigated experimentally and as a result, the resistance coefficient of the compressor depends on the Reynolds number defined by the equivalent velocity of the pulsating flow is introduced. It is also shown that the relation of the maximum pressure amplitude in piping systems to the location of the excitation source under resonant conditions can be evaluated by introducing the equivalent resistance of the compressor and that of piping systems.

  • Pressure pulsations by a centrifugal compressor at blade passing frequency

    Itsuro Hayashi, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE 2007, VOL 4     401 - 409  2008  [Refereed]

     View Summary

    Pressure pulsations excited by a centrifugal compressor or fan at blade passing frequency may cause severe noise and vibrations in piping systems. Therefore, the practical evaluation method of pressure pulsations is strongly required. In this study, a one-dimensional excitation source model for a compressor was proposed based on the equation of motion. An experiment was performed for the validation of this model. As a result, the relation of the maximum pressure amplitude in piping systems to the location of the excitation source under resonant conditions can be evaluated by introducing the equivalent resistance of the compressor and that of piping systems. The role of the system resistance to the response of pressure pulsations is discussed in detail.

  • The numerical calculation of static performance of multi wound foil bearing and experimental validation

    Kai Feng, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME/STLE INTERNATIONAL JOINT TRIBOLOGY CONFERENCE, PTS A AND B     335 - 344  2008  [Refereed]

     View Summary

    Multi wound foil bearings (MWFB), as a kind of foil bearings with simple structures, are supposed to be one of the best candidates of supporting component for turbo-machineries because of their design simplicity, reduced weight and size, high speed and temperature capability, and easy maintenance. In this study, a theoretical model of MWFB taking account of the effect of the foil deformation is developed to predict its static performance. Reynolds' equation is solved using Finite Difference Method (FDM) to yield air pressure distribution, while the elastic deformation equation is solved by Finite Element Method (FEM) to predict the deformation of the foil. Then, the above two equations are coupled by several iterations until the convergence criterion is reached. Based on the calculations, static characteristics of MWFB such as film thickness, load capacity and torque are presented. Finally, an experimental apparatus is built up to measure the load of MWFB at different operation condition, which are used to validate numerical calculation results.

  • Pulse wave propagation and reflection in human arteries by pressure-velocity loop and impedance analysis

    Ye Chang, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE 2007, VOL 4     355 - 363  2008  [Refereed]

     View Summary

    To investigate the mechanism and the usage of the information of pulse wave propagation and reflection in human arteries are the objects of this study. In this study, an experimental apparatus simulating human circulatory system by using silicon tubes to examine the pulse wave propagation and reflection with and without branches has been developed. We examined the effect of eight parameters, such as flow rate, tube diameter, tube thickness etc., affecting waveform, PWV (Pulse Wave Velocity) and PV loop (Pressure-Velocity Loop). Numerical analyses were also carried out, and the relation between PV Loop and local impedance was discussed. Finally, the effect of eight parameters on the P W and PV loop were clarified. It was also found that, the PV Loop includes much information on the tube characteristics, impedance, boundary condition, tube connection and reflection condition. Therefore, the PV loop method might be promising to be used in health diagnosis systems. In addition, we found that the effects of bifurcation angle on wave propagation and reflection were so little that they can be neglected in wave calculation models.

  • Operation Control of a Biomass Gas Engine with Real-Time Analysis of In-Cylinder Gas Pressure

    Yudai YAMASAKI, Go TOMATSU, Yuki NAGATA, Shigehiko KANEKO

    JSME Journal of System Design and Dynamics   Vol.2 ( No.6 ) 1284 - 1295  2008  [Refereed]

     View Summary

    Biomass resources are drawing more and more attention as alternative fuel for combating the energy crisis and for atmospheric environment protection. The small gas engine in a distributed power generation system is an efficient system to use, because the biomass resource is stored in large area and its energy density is low. The heat quantity of gas fuel converted from biomass is low, and the gas composition is affected by the source type, the gasification method, and the gasifying condition. Therefore, the gas engine must be modified and operated stably with high thermal efficiency in view of these fuel fluctuations. In this study, we aim to develop a small gas engine system for biomass gas by modifying the control system of a conventional spark ignition engine. The engine control system for the biomass gas that was developed analyzed the fuel type in real time by measuring the in-cylinder gas pressure. With this control system, stable automatic engine operation was successfully achieved under different fuel composition percentages of methane and the mock biomass gas.

    DOI CiNii

  • Evaluation of fatigue by fluctuation of the finger plethysmogram

      Vol.20 ( No.1別冊 ) 71 - 84  2008  [Refereed]

    CiNii

  • 遠心圧縮機による配管内圧力脈動に関する研究(第3報, 配管系に接続されたドラム内の圧力脈動に関する検討

    林 慈朗, 金子成彦

    日本機械学会論文集(C編)   074巻 ( 745号 ) 2162 - 2170  2008  [Refereed]

  • 筒内圧力のリアルタイム解析によるバイオマスガスエンジンの運転制御

    山崎由大, 戸松豪, 永田裕樹, 金子成彦

    日本機械学会論文集(C編)   074巻 ( 741号 ) 1246 - 1252  2008  [Refereed]

  • 遠心圧縮機による配管内圧力脈動に関する研究、(第2報、配管内圧力脈動の減衰特性に関する検討)

    林慈郎, 金子成彦

    日本機械学会論文集(C編)   074巻 ( 739号 ) 650 - 657  2008  [Refereed]

  • 3-26 Electric power generation with a modified small size auto-mobile gasoline engine using the biomass gas fuel

    YAMASAKI Yudai, NISHIZAWA Yukihiro, NAGATA Yuki, YAMAZAKI Daisuke, KANEKO Shigehiko

    Proceedings of the Annual Conference of The Japan Institute of Energy   17   124 - 125  2008

    DOI CiNii

  • 2422 Ignition and combustion characteristic of biomass gas in a HCCI engine

    KANNO Masanobu, NISHIZAWA Yukihiro, NAGATA Yuki, YAMASAKI Yudai, KANEKO Shigehiko

    The proceedings of the JSME annual meeting   2008   143 - 144  2008

     View Summary

    In this study, ignition and combustion characteristic of biomass gas in a HCCI engine was investigated experimentally. 1.6L gas engine for 13A fuel was remodeled to 24.6 compression ratio and rigged up an air heater for HCCI combustion. Fuel was assumed biomass gas consisted of CH_4, H_2, CO, CO_2 and N_2. In experiments, fuel composition was changed H_2 or CO of this biomass gas. As results, a HCCI engine moved in indicated thermal efficiency 37%. Higher H_2 composition made ignition timing of a HCCI engine advanced and lower CO composition made it delayed.

    DOI CiNii

  • 2615 Development of Small Size Engine Fueled by Biomass Gas Based on Automotive Engine

    YAMAZAKI Daisuke, NISHIZAWA Yukihiro, NAGATA Yuki, YAMASAKI Yudai, KANEKO Shigehiko

    The proceedings of the JSME annual meeting   2008   187 - 188  2008

     View Summary

    Biomass resources are effective energy sources against global warming. In order to utilize biomass resources effectively, the automotive engine as a small-distributed generation system is one of the effective methods. In this study, a small size engine fueled by biomass gas based on automotive engine has been realized. Operating experiment fueled by low calorie gas simulating biomass gas gave knowledge about combustion characteristics and requirement for stable operation. 26% thermal efficiency was accomplished under appropriate conditions. An engine plant fueled by real biomass gas supplied from gasifying plant generated 19kW at its maximum. Then, auto control program was applied to the system. The control of air-fuel ratio and ignition timings realized stable rotational speed and power generation.

    DOI CiNii

  • 2723 A Link-Spring Model of the Bump-Type Foil Bearing

    FENG Kai, KANEKO Shigehiko

    The proceedings of the JSME annual meeting   2008   127 - 128  2008

     View Summary

    In this investigation, a complete analytical model of the bump-type foil bearing considering the effects of four factors, the elasticity of bump foil, the friction forces at contact surfaces and the interacting forces between bumps, the local deflection of top foil and the assembly preload, is presented. In this model, the bump foil is simplified to a two rigid links and one horizontally spaced spring structure. Because the spring is parallel with the frictional forces and the interaction forces, it is easy to take into account the effects of the forces inside foil structure. The local deflection of top foil is described using a Finite Element model and added to the film thickness for the pressure prediction with Reynolds' equation. An assembly deflection of both top foil and bump foil is used to simulate the preload. The static load and film thickness of a bump-type foil bearing are predicted using this model and the results are very closed to the experimental data.

    DOI CiNii

  • 2122 Visualization of flameless combustion in a small size gas turbine combustor fuelled by low calorific gas

    HIRAMATSU Masato, HAYASHI Shigeru, KANEKO Shigehiko, YAMASAKI Yudai

    The proceedings of the JSME annual meeting   2008   27 - 28  2008

     View Summary

    In this study, combustion field in a combustor designed for small size gas turbine fueled by low calorific gas was visualized by OF-PLIF method. To investigate the effect of mixing, air fuel ratio and combustion length, rectangular combustor is used. In addition, to verify the fact that flameless combustion is realized in our homemade small size combustor, cylindrical transparent combustor with the same size is used. Visualized pictures explain previously obtained data well.

    DOI CiNii

  • The Prediction of Dynamic Performance of Multi Wound Foil Bearings

    Kai Feng, Shigehiko Kaneko

    APCOM’07 in conjunction with EPMESC XI, December 3-6, 2007, Kyoto, JAPAN    2007.12  [Refereed]

  • 小型ガスエンジンでのバイオマスガス利用に関する研究

    山崎 由大, 金子 成彦

    日本燃焼学会誌 = Journal of the Combustion Society of Japan   49 ( 150 ) 236 - 245  2007.11  [Refereed]

    CiNii

  • Aerodynamic characteristics of carriage arm equipped on hard magnetic disks

    Shigehiko Kaneko, Takashi Nishihara, Tatsuo Watanabe

    MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS   13 ( 8-10 ) 1297 - 1306  2007.05  [Refereed]

     View Summary

    In order to study aerodynamic characteristics of a carriage arm equipped on hard disk drives, water tunnel tests with ten times enlarged models of an actual arm were conducted based on Reynolds number similitude, which allows the time scale of the phenomena about 1,300 times slower than that compared with the phenomena under actual operation condition in the air. In the tests, flow visualization around the arm model. with fluorescent dye injection and laser-light sheet technique was carried out. Fluid dynamic drag, lift and torque on the model were also measured. The effects of the oncoming flow velocity and profile, the installation angle and position of the arm and the configuration of the trailing edge of the arm on the power spectral density of the fluid dynamic force were investigated. As a result, predominant spectrum peak, the Strouhal number of which is about 0.24, is found in the power spectral density of dynamic lift force on the arm. The flow visualization confirmed that the dynamic lift with the spectral peak originates from the alternating vortex shedding from the trailing edge of the arm. The peak rapidly decreases as the installation angle increases while the velocity profile of oncoming flow and the position of the arm in the gap direction have little effect on the peak component. Furthermore, it was demonstrated that the dynamic lift can be reduced by modification of trailing edge shape of the arm.

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  • Development of a small size gas engine system with biomass gas (combustion characteristics of the wood chip pyrolysis gas)

    Yudai Yamasaki, Go Tomatsu, Yuki Nagata, Shigehiko Kaneko

    SAE Technical Papers    2007

     View Summary

    This study aims to develop a small size gas engine system with biomass gas by modifying the control system of a conventional spark ignition engine. In this paper, combustion characteristics of typical biomass gas assuming the wood chip pyrolysis gas, whose lower heating value was about 1/6 of the city gas in Japan, were investigated. Engine control system for biomass gas was also examined. It was confirmed that simulated biomass gas could achieve high thermal efficiency and stable combustion for wide range equivalence ratio without knocking and at low emissions. Automatic engine operation with real time in-cylinder gas pressure analysis was also tried under fuel composition change. Copyright © 2007 SAE International.

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    4
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  • Pulse Wave Propagation and Reflection in Human Arteries

    Ye Chang, Shigehiko Kaneko, Tatsuo Watanabe

    VSTech 2007, China    2007

  • Design of Small Size Gas Turbine Combustor Fuelled by Low-Calorific Gas Based on Analysis of Flameless Combustion

    Masato Hiramatsu, Yoshifumi Nakashima, Shigeru Hayashi, Shigehiko Kaneko

    International Gas Turbine Congress 2007 Tokyo, Gas Turbine Society of Japan    2007  [Refereed]

  • H∞ Control of Micro Gas Turbine for Low Calorific Gas

    Yukinori Okada, Tomohiko Kaneko, Yudai Yamasaki, Shigehiko Kaneko

    International Gas Turbine Congress 2007 Tokyo, Gas Turbine Society of Japan    2007  [Refereed]

  • Pressure Pulsations by a Centrifugal Compressor in Piping Systems

    Itsuro Hayashi, Shigehiko Kaneko

    APVC2007, CD-ROM,   No.92  2007  [Refereed]

  • Estimation of Dynamic Characteristic of Gas Engine Using Simulation Model

    Yuki Nagata, Go Tomatsu, Yudai Yamasaki, Shigehiko Kaneko

    12th Asia-Pacific Vibration Conference, Dynamics, Measurement and Control (DMC) Division, JSME    2007  [Refereed]

  • Static Performance of Multi Wounded Foil Bearing with The Effect of Foil Deformation

    Kai Feng, Shigehiko Kaneko

    12th Asia Pacific Vibration Conference, APVC 2007, Sapporo, Japan, 2007/08    2007  [Refereed]

  • Development of high thermal efficiency and small-size gas engine system using biomass gas fuel

    Yudai Yamasaki, Go Tomatsu, Yuki Nagata, Shigehiko Kaneko

    SAE Technical Papers     JSAE 20077086/SAE 2007-01-2042  2007  [Refereed]

     View Summary

    Biomass is one of the attractive alternative fuels, which exists dispersively. Small size gas engine power generation with gasification biomass gas is one of the efficient methods. However, since its calorific value is lower and its composition can be affected by gasifying conditions, it is difficult to stabilize and achieve high thermal efficiency engine operation. This study aims to develop a small size gas engine system with biomass gas by modifying the control system of a conventional spark ignition engine. In this paper, effect of fuel composition on combustion was clarified experimentally to get guideline for the engine control system. Copyright © 2007 Society of Automotive Engineers of Japan, Inc.

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  • Combustion characteristics of small size gas turbine combustor fueled by biomass gas employing flameless combustion

    Masato Hiramatsu, Yoshifumi Nakashima, Sadamasa Adachi, Yudai Yamasaki, Shigehiko Kaneko

    PROCEEDINGS OF THE ASME TURBO EXPO, VOL 2     463 - 469  2007  [Refereed]

     View Summary

    One approach to achieving 99% combustion efficiency (C.E.) and 10 ppmV or lower NOx (at 15%O-2) in a micro gas turbine (MGT) combustor fueled by biomass gas at a variety of operating conditions is with the use of flameless combustion (FLC). This paper compares experimentally obtained results and CHEMKIN analysis conducted for the developed combustor. As a result, increase the number of stage of FLC combustion enlarges the MGT operation range with low-NO, emissions and high-C.E. The composition of fuel has a small effect on the characteristics of ignition in FLC. In addition, NO, in the engine exhaust is reduced by higher levels Of CO2 in the fuel.

  • Calculation of static and dynamic characteristics of multi wounded radial foil bearing based on leakage flow induced vibration theory

    Shigehiko Kaneko, Xiaoshan Wu

    PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE VOL 9     813 - 820  2007  [Refereed]

     View Summary

    Dynamic pressure type foil bearings are expected to serve as shaft bearings for Micro Gas Turbines (MGT). In this study, in order to establish design guidelines of radial foil bearings, dynamical modeling of multi wounded foil bearing was carried out employing leakage flow induced vibration theory. Taking frictional forces due to attached part of the foil and the protrusion, etc. into consideration, static and dynamic characteristics were analyzed to examine the performance and the stability of radial foil bearings.

  • A Numerical Calculation Model of Multi Wound Foil Bearing with the Effect of Foil Local Deformation

    FENG Kai, KANEKO Shigehiko

    JSDD   Vol.1 ( No.3 ) 648 - 659  2007  [Refereed]

     View Summary

    Foil bearings are supposed to be one of the best candidates of supporting component for turbo-machineries because of their design simplicity, reduced weight and size, high speed and temperature capability, and easy maintenance. Among various types of foil bearings, multi wound foil bearing (MWFB), which had been designed and fabricated in our lab, is easy to analyze static characteristics even though load capability of which is small compared with other types of foil bearings.<br>In this study, a theoretical model of MWFB taking account of the effect of the foil deformation is developed to predict its static performance. Reynolds equation is solved using Finite Difference Method (FDM) to yield air pressure distribution, while the elastic deformation equation is solved by Finite Element Method (FEM) to predict the deformation of the foil. Then, the above two equations are coupled by several iterations until the convergence criterion is reached. Based on such calculations, static characteristics of MWFB such as load capacity, torque are presented.

    DOI CiNii

  • 遠心圧縮機による配管内圧力脈動に関する研究、(第1報、評価モデルと共振時の脈動特性に関する検討)

    林 慈郎, 金子成彦

    日本機械学会論文集(C編)   Vol.73 ( No.732 ) 2255 - 2262  2007  [Refereed]

  • バイオマスガス対応小型ガスエンジンの開発(低カロリーガス燃料の燃焼特性)

    山崎由大, 戸松豪, 永田裕樹, 金子成彦

    日本機械学会論文集(B編)   073巻 ( 729号 ) 1256 - 1262  2007  [Refereed]

  • Emissions in combustion of lean methane-air and biomass-air mixtures supported by primary hot burned gas in a multi-stage gas turbine combustor

    Sadamasa Adachi, Atushi Iwamoto, Shigeru Hayashi, Hideshi Yamada, Shigehiko Kaneko

    PROCEEDINGS OF THE COMBUSTION INSTITUTE   31 ( No.2 ) 3131 - 3138  2007  [Refereed]

     View Summary

    Thermal reaction of lean to ultra-lean premixed mixtures supported by the hot burned gas from the upstream stage can be used for obtaining a better trade-off between ultra-low-NOx and high combustion efficiency over a wide range of operations of a gas turbine. A three-stage model combustor designed based on this concept is being developed for a biomass gas-fueled regenerative cycle 10 kW micro-gas turbine. Tubular flame combustion is used for the primary stage and mixtures of lean to ultra-lean compositions are injected into the cross-flowing hot burned gas from the up-stream stage in the secondary and tertiary stages. The emissions and combustion characteristics are evaluated with methane and simulated biomass gas of different CO2 contents at atmospheric pressure and inlet air temperatures up to 700 K.
    In the experiments, the fuel flow for the secondary mixture was gradually increased while maintaining the fuel flow to the primary stage in the two-stage combustion mode and the fuel flow for the tertiary mixture was gradually increased while maintaining the fuel flows to the primary and secondary stages in the three-stage combustion mode. The combustor exit NOx concentration corrected to 15% O-2 remained at or slightly lower than the level that was achieved at the start of fuel staging as far as the injected mixture was leaner than the primary mixture and NOx emissions in the 10 ppm level were achieved at gas temperatures less than 1700 K. In contrast, the NOx concentration increase steeply with equivalence ratio in non-staged combustion mode. The reaction of the injected mixture was completion when the reaction zone temperature was higher than 1500 K regardless of inlet air temperature and equivalence ratio of the primary stage. The results show that, the multi-stage combustion where mixtures of ultra-lean to lean compositions are injected into the hot burned gas from the up-stream stage achieved low-NOx emissions and high combustion efficiency over a wide range of overall equivalence ratios or combustor exit gas temperatures. It is found that the CO2 in the simulated biomass gas suppresses the NO formation by slowing down the progress of combustion reaction, especially at high temperature conditions. (c) 2006 The Combustion Institute. Published by Elsevier Inc. All rights reserved.

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  • 0502 Study on Load Following Capability of Gas Engines

    YAMASAKI Yudai, TOMATSU Go, NAGATA Yuki, KANEKO Shigehiko

    The proceedings of the JSME annual meeting   2007   35 - 36  2007

     View Summary

    Micro grid energy system is consisted of various kind of generator (ex: wind power system that use natural energy, gas engine, storage battery and etc.). These devices are needed to be operated in line for the electricity demand change. Fuel composition also changes in assuming biomass use in the micro grid. So, it is important to understand their transient response properties for designing and managing the micro grid. In this study, transient response characteristics of a small size existent gas engine were investigated in experiment and engine dynamics model was developed. Influence of fuel condition on transient response was also investigated. It was clarified that fuel condition did not affect load following time though thermal efficiency was changed.

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  • Transient Response Control for the Micro Gas Turbine System

    George Matsumoto, Tomohiko Kaneko, Shigehiko Kaneko

    pp.119, 8th International Conference on Motion and Vibration Control    2006.08  [Refereed]

  • Development of High Thermal Efficiency and Small Size Gas Engine with Biomass Gas -Combunstion Charactereistics of Low-Calorific Gas Fuel- for Low Calorific Value Gas from Biomass

    Yudai Yamasaki, Go Tomatsu, Shigehiko Kaneko

    Renewable Energy 2006 Proc., Abstract, p.54, O-N-2-1     1673 - 1676  2006

  • Development of Micro Gas Turbine Generator system for Low Calorific Value Gas from Biomass

    Shigehiko Kaneko, Yoshifumi Nakashima, Tomohiko Kaneko, Yudai Yamasaki, Tatsuo Watanabe

    Renewable Energy 2006 Proc., Abstract, p.54, O-N-2-3     1681 - 1684  2006

  • 生理学的指標を用いた入眠予兆現象の検証

    村田 幸治, 亀井 勉, 藤田 悦則, 金子 成彦

    人間工学   42   168 - 169  2006

    DOI CiNii

  • Distributed Energy Systems and Micro Grids

    S.Kaneko

    The 21st Century COE Program Mechanical System Innovation , The University of Tokyo December 7-8     135 - 149  2005.12

  • Development of a Method for Measuring Sleep Predictor Signals via Biological Signals in the Hip Region

    Etsunori Fujita, Kohji Murata, Naoki Ochiai, Shinichiro Maeda, Yumi Ogura, Tsutomu Kamei, Shigehiko Kaneko

    Proceedings of the 11th Asia-Pacific Vibration Conference,Vol.2, pp.427-431(2005)    2005.11  [Refereed]

  • Analysis of the pulse wave velocity and application to the blood pressure meter

    Ye Chang, Shigehiko Kaneko, Tsuo Watanabe

    Proceedings of the 11th Asia-Pacific Vibration Conference,Vol.1, pp.263-267(2005)    2005.11  [Refereed]

  • Linear and nonlinear analyses of sheet flutter induced by leakage flow

    Wu, X, S Kaneko

    JOURNAL OF FLUIDS AND STRUCTURES   20 ( 7 ) 927 - 948  2005.10  [Refereed]

     View Summary

    This paper deals with both linear and nonlinear analyses of sheet flutter in a narrow passage caused by fluid-structure interaction. The sheet is considered as a combination of massless beam elements, springs and discrete mass particles, in which the mass of each particle and spring coefficients are calculated based on the beam model. In the linear analysis, equations of motion of the system are obtained by formulating fluid dynamic forces and moments acting on each sheet element, yielding an eigenvalue problem. To show the validity of the proposed method, calculated results were compared with previously reported experimental ones. In the nonlinear analysis, nonlinear fluid dynamic forces are introduced to simulate the behavior of the sheet, showing the appearance of limit-cycle vibration in high flow speed. (c) 2005 Elsevier Ltd. All rights reserved.

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  • Protptyping of palm top size micro gas turbine shaft system supported by foil bearings and the evaluation of dynamic characteristics

    Shigehiko KANEKO

    Proceedings of The Sixth Korea-Japan Symposium of Frontiers in Vibration Science and Technology, Ibaraki University, July 14-15     25 - 27  2005.07

  • Clarification of Relations between Wake Behaviors and Fluid Excitation Force of a Circular Cylinder Oscillated in the Streamwise Direction at Low Cylinder Amplitudes

    Takashi NISHIHARA, Shigehiko KANEKO, Tatsuo WATANABE

    Proceedings of 4th Smposium on Bluff Body Wakes and Vortex-Induced Vibrations, Santorini, July 6-9     175 - 178  2005.07

  • Characteristics of fluid dynamic forces acting on a circular cylinder oscillated in the streamwise direction and its wake patterns

    T Nishihara, S Kaneko, T Watanabe

    JOURNAL OF FLUIDS AND STRUCTURES   20 ( 4 ) 505 - 518  2005.05  [Refereed]

     View Summary

    This paper describes the characteristics of fluid forces and wake patterns of a circular cylinder oscillating in the streamwise direction in a cross-flow, on the basis of precise measurements and flow-visualizations in forced-oscillation tests in a water tunnel at subcritical Reynolds numbers. The added mass and added damping coefficients of a circular cylinder in a streamwise oscillation were calculated. The results of the forced-oscillation tests confirmed that two reduced-velocity ranges with negative added damping exist. The two ranges agree well with the two streamwise excitation regions observed in the free-oscillation tests in several previous studies. The added mass coefficient for the streamwise vibration varies greatly, depending on the reduced velocity, and that can affect the dynamic behavior of the streamwise vibration under low mass-ratio conditions. Furthermore, the mean drag coefficient attains its maximum at the reduced velocity between the first and second excitation regions where the added damping coefficient reaches its local maximum. This suggests that the increase in the mean drag coefficient induced by the formation of alternate vortices magnifies the fluid damping effect and contributes to the damping region between the first and second excitation region. (c) 2005 Elsevier Ltd. All rights reserved.

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  • Experimental Study on Prediction of Sleep during Wakefulness

    E. Fujita, Y. Ogura, N. Ochiai, T.MIAO, T.SHIMIZU, K. Murata, T. Kamei, Y. Ueno, S. Kaneko

    Proc. VSTech 2005     282 - 287  2005

    CiNii

  • Development of sleep forecast method by fluctuation time series analysis utilizing finger plethysmogram

    E. Fujita, Y. Ogura, N. Ochiai, K. Murata, T. Kamei, Y. Ueno, S. Kaneko

    Proceedings of the World Association of Sleep Medicine     57 - 60  2005

     View Summary

    It was hypothesized that indicators of a subject entering a sleep state are captured in the gradient time series waveform of the square of the amplitude of the finger plethysmogram which show a fluctuation of changes in a blood pressure and also captured in the largest Lyapunov value's gradient time series waveform which show a fluctuation in a diameter of the blood vessels in the skin, and that these indicators exist in the VLF and ULF.
    This hypothesis was verified by sleep experiments on subjects in sitting position. Indicators were detected of predicting subject's transition to the first stage in the sleep state during wakefulness. These indicators required about 30 minutes to be detected for a measurement and were identified by transition state in the power value's gradient amplitude and gradients of both the largest Lyapunov coefficient and the power values exhibiting a phase difference of 180 degrees.

  • Static and Dynamic Characteristics of a Micro Gas Turbine Rotor Supported by Radial Foil Bearings

    S.Kaneko, Y.Miyano, T.Watanabe

    Power MEMS2005 Technical Digest     89 - 92  2005

  • Development of a MGT Combustor with Mixture Injected into Burned Gas

    S. Adachi, A. Iwamoto, Y. Yamasaki, H. Yamada, S. Hayashi, S. Kaneko

    ACGT2005-056, THE FIRST ASIAN CONGRESS ON GAS TURBINES,SEOUL, KOREA November 15-18, CD-ROM    2005  [Refereed]

  • Development of a Micro Gas Turbine System With Low-Calorific Value Gas from Biomass

    Y.Yamasaki, Y.Nakashima, Y.Mori, T. Watanabe, S. Kaneko

    ACGT2005-057, THE FIRST ASIAN CONGRESS ON GAS TURBINES, SEOUL, KOREA November 15-18, CD-ROM    2005  [Refereed]

  • Development of the measurement method of the prediction of sleep by finger plethysmogram data

    FUJITA Etsunori, OGURA Yumi, OCHIAI Naoki, MIAO Teijun, SHIMIZU Toshiyuki, KAMEI Tsutomu, MURATA Kohji, UENO Yoshiyuki, KANEKO Shigehiko

    JES Ergonomics   Vol.41 ( No.4 ) 203 - 212  2005  [Refereed]

     View Summary

    The feature of sleep mechanism is determined by the circadian rhythm and homeostasis that is typified by the rhythm of body temperature In this study, a method was conceived for capturing changes in the peripheral circulatory system effected by the circadian rhythm and homeostasis via changes in finger plethysmogram in Ultra Low Frequency (ULF) and Very Low Frequency (VLF). A finger plethysmogram was recorded during experiments with induced sleep tests in the lying and sitting positions. Recorded signals were then analyzed by chaos analysis, which calculates Lyapunov exponent. By analyzing the variations in the time series of the gradients of the largest Lyapunov exponent and the power value (the square of the finger plethysmogram amplitude), and by observing the conditions of the subject, the phenomenon that predicts the subject's transition to sleep stage 1 during wakefulness was detected. These predictive signals for falling asleep can be found when the amplitude of the power gradient was in transition, and when the largest Lyapunov exponent's gradient and the power gradient have an inverse phase with 180 degrees.

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  • 2529 Aerodynamic Characteristics of Carriage Arm Equipped on Hard Magnetic Disks

    KANEKO Shigehiko, NISHIHARA Takashi, WATANABE Tatsuo

    The proceedings of the JSME annual meeting   2005   279 - 280  2005

     View Summary

    In order to study aerodynamic characteristics of a carriage arm equipped on hard magnetic disks, water tunnel tests with 10 times enlarged model of an actual carriage arm were conducted under Reynolds number similitude, which allows the time scale of the tests to expand approximately 1300 times larger than that under actual condition in the air. In the tests, flow visualization around the carriage arm model with fluorescent dye injection and Laser-light sheet technique was carried out. Fluid dynamic drag, lift and torque on the model were also measured. Effects of incident flow velocity and incident flow angle were investigated.

    DOI CiNii

  • Development of sleep indicator measurement technology utilizing the finger plethysmogram

    E. Fujita, Y. Ogural, N. Ochiai, T. Kamei, K. Murata, Y. Ueno, S. Kaneko

    Proceedings of the 2nd Interim Congress of the World Federation of Sleep Research and Sleep Medicine Societies     149 - 153  2005  [Refereed]

     View Summary

    It was hypothesized that indicators of a subject entering a sleep state are captured in the gradient time series wave form of the square of the amplitude of the finger plethysmogram pressure, and also are captured in the fluctuation in diameters of the blood vessels in the skin as evidenced in the largest Lyapunov value's gradient time series wave form, and that indicators of entering a sleep state exist in the VLF and ULF.
    This hypothesis was verified in sleep studies on subjects in both lying and sitting positions, and indicators were detected when the subject went from a waking state to the first stage of entering a sleep state. These indicators required a measurement timeframe of 30-50 minutes, and were captured when the power value's gradient amplitude, the largest Lyapunov coefficient and the power value's gradient exhibited a phase difference of 180 degrees.

  • Added Mass Effect on Flow-induced Streamwise Vibration of a Circular Cylinder in Cross-flow

    Takashi Nishihara, Shigehiko Kaneko, Tatsuo Watanabe

    The 6TH International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Operations and Safety NUTHOS-6, Oct4-8, Nara, Japan   Paper ID.N6P159  2004.10  [Refereed]

    CiNii

  • Linear and Nonlinear Analyses of Sheet Flutter induced by Leakage Flow

    Xiaoshan WU, Shigehiko KANEKO

    Flow Induced Vibration, Vol.1, 119-124, Ecole de Polytechnique, July 6-9,2004、日時:2004年7月6日、会場:Ecole de Polytechnique(フランス)    2004.07  [Refereed]

  • Characteristics of Fluid Dynamic Forces Acting on a Circular Cylinder Oscillating in the Streamwise Direction

    Takashi Nishihara, Shigehiko Kaneko, Tatsuo Watanabe

    Proceedings of 8th International Conference on Flow Induced Vibration, Vol.2, pp.267-272, Ecole de Polytechnique, July 6-9,2004、日時:2004年7月6日、会場:Ecole de Polytechnique(フランス)    2004.07  [Refereed]

  • A new course for graduate student experiment aiming at skill improvement

    WATANABE Tatsuo, KANEKO Shigehiko, KAMATA Minoru

    Journal of Jsee   52 ( 3 ) 97 - 101  2004.05

     View Summary

    At present, curriculum in engineering graduate school has the following issues to be solved; there are few student laboratories aiming at acquiring experimental skills, few opportunities to experience experiments in other laboratories besides their proper laboratories and few chances to learn technical writing and documentation. In the Mechanical Engineering Department, the University of Tokyo, we started new laboratory course entitled "Dynamics and Control Laboratory for graduate students" in 2002 to improve such situations. After finishing the first trial, we immediately carried out students' evaluation, improved the scheme and reflected the planning of 2003. In this paper, first we introduce the activities, analyze the results of students' evaluation and finally show the effectiveness of newly proposed laboratory course for graduate students.

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  • Prototyping of Radial and Thrust Air Bearing for Micro Gas Turbine

    金子成彦, 北澤 進, 渡邉辰郎

    日本ガスタービン学会誌   Vol.32 ( No.3 ) 322 - 327  2004  [Refereed]

  • スキルの向上をめざした大学院演習の新方式

    渡邉辰郎, 金子成彦, 鎌田 実

    工業教育   Vol.51 ( No.3 ) 83 - 86  2004  [Refereed]

  • 指尖容積脈波を用いた長時間着座疲労の簡易評価法の開発

    藤田悦則, 小倉由美, 落合直輝, 安田栄一, 土居俊一, 亀井 勉, 村田幸治, 上野義雪, 金子成彦, 指 尖

    人間工学   Vol.40 ( No.5 ) 254 - 263  2004  [Refereed]

    Authorship:Last author

  • 都市ガスを燃料としたマイクロガスタービン監視制御システムの開発

    徐 朝全, 金子成彦, 渡邉辰郎

    日本ガスタービン学会誌   Vol.32 ( No.3 ) 322 - 327  2004  [Refereed]

  • The Development of Control System of Micro Gas Turbine for Low Calorific Value Gas Fuel

    MORI Yuji, KANEKO Shigehiko, WATANABE Tatuo, YAMASAKI Yudai, HIKITA Takayuki

    The proceedings of the JSME annual meeting   2004   263 - 264  2004

     View Summary

    For the purpose of the effective utilization of the biomass, a low calorific value gas fueled micro gas turbine generating system is being developed. The micro gas turbine is a twin shaft gas turbine with regenerative cycle, and its output is about 10 kW. City gas and low calorific value gas are used as fuel. The low calorific value gas simulated the gas composition of the biogas, and its calorific value is about 4,000 kcal/m^3. In order to operate and evaluate the generating system, the development of the control system is also being carried out. In this paper, the outline of the generating system and its start-up control method are introduced.

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  • Application of Leakage Flow Theory to the Design of Foil Journal Bearing for Micro Gas Turbine Use

    KANEKO Shigehiko, KITAZAWA Susumu, MIYANO Yoshihiro, WATANABE Tatuo

    The proceedings of the JSME annual meeting   2004   99 - 100  2004

     View Summary

    Dynamic pressure type foil bearings are expected to serve as bearings for micro gas turbine use because its maintenanceability. However, details of design guidelines have not yet been clarified although this technology is already used in APC for aircraft units. In this study, as an extension of leakage flow theory, dynamic modeling of the fluid coupled thin film is conducted. Taking fluid dynamic forces as well as frictional forces acting on the attachment part of the foil through the protrusions on the thin metal foil into consideration, static and dynamic characteristic of foil journal bearing were analyzed to examine performance and stability of the radial foil bearing.

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  • Nonlinear Dynamics of Continuous Fluid/ Structural Systems

    Shigehiko Kaneko

    2nd MIT Conference on Computational Fluid and Solid Mechanics, Cambridge (Boston, USA), , June 17-20    2003.06

  • Nonlinear analysis of sheet flutter subjected to a leakage flow based on multibody dynamics

    XS Wu, S Kaneko

    JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING   46 ( 2 ) 500 - 507  2003.06  [Refereed]

     View Summary

    This paper deals with nonlinear analyses of sheet flutter in a narrow passage caused by fluid-structure interaction. Attention is paid to the behavior of sheet when flow velocity exceeds critical, flow velocity. With discretization, the sheet is modeled as a combination of mass less beam elements, springs and discrete mass particles, in which the mass of each particle and spring coefficients are calculated based on the beam model. Nonlinear fluid forces acting on the mass particles are formulated then coupled with equations of motions of structure. After that the behavior of large-amplitude vibration of cantilevered sheet is simulated using numerical computation, showing that Vibration of sheet grows into a limit cycle oscillation then becomes unstable with increasing flow velocity.

  • Vibration and Control Related Issues of Micro Gas Turbines

    Shigehiko Kaneko

    APVC-2003    2003  [Refereed]

  • Physical and Mathematical Modeling of Home Use Blood Pressure Meter

    Tateki Nakamura, Shigehiko Kaneko, Tatsuo Watanabe

    APVC-2003    2003  [Refereed]

  • Combined Thermal Efficiency Evaluation and Dynamic Characteristics of Micro Gas Turbine Centered Co-generation System

    Shigehiko Kaneko, Gen Fukuyama, Tatsuo Watanabe

    IGTC2003Tokyo TS-117    2003  [Refereed]

  • The Development of Operation System of a Liquid-Fueled Micro Gas Turbine

    Yuji Mori, Shigehiko Kaneko, Tatsuo Watanabe

    IGTC2003Tokyo TS-053    2003  [Refereed]

  • Development of Foil Bearing for Micro Gas Turbine Use

    Susumu Kitazawa, Shigehiko Kaneko, Tatsuo Watanabe

    IGTC2003Tokyo TS-019    2003  [Refereed]

  • 離散はり要素を用いたすきま流れによって発生するシートフラッタの非線形解析

    呉 小山, 金子成彦

    日本機械学会論文集、C編   Vol.69 ( No.687 ) 2991 - 2998  2003  [Refereed]

  • Added Mass and Added Damping of Circular Cylinder Oscillating in Streamwise Direction

    NISHIHARA Takashi, KANEKO Shigehiko, WATANABE Tatsuo

    The proceedings of the JSME annual meeting   2003   277 - 278  2003

     View Summary

    Fluid force acting on a circular cylinder oscillating in the streamwise direction in a cross flow was measured by forced oscillation test in a water tunnel under the condition of low reduced velocity and small cylinder amplitude. Added mass and added damping coefficients were calculated based on the measured dynamic drag. They reasonably explain the characteristics of the in-line oscillation such as soft oscillator in the 1st excitation region and hysteresis in the 2nd excitation region. The mean drag coefficient and dynamic lift coefficient attain to their maximum at the reduced velocity between the 1st and 2nd excitation region where the added damping coefficient has its local maximum. It suggests that the increase of the mean drag coefficient induced by the formation of alternate vortices magnifies fluid damping effect and it contributes to the damping region between the 1st and 2nd excitation region.

    DOI CiNii

  • Prototyping of Radial and Thrust Foil Bearing for Small Size Micro Gas Turbines

    Kaneko Shigehiko, Watanabe Yu, Watanabe Tatsuo, Kitazawa Susumu

    The proceedings of the JSME annual meeting   2003   327 - 328  2003

     View Summary

    Recently, much attention is paid to foil bearings for micro gas turbine use because these bearings are indispensable elements for realizing maintenance free small size gas turbines. We designed and manufactured a small size radial and thrust foil bearing for the shaft the size of which is 20mm in diameter. In this test apparaturs, the shaft is equipped with radial turbine blades and is driven by compressed air. As a result, we succeeded to operate it at the speed of 60000rpm and measured vibration characteristics.

    DOI CiNii

  • Recent advances in mechanism identification androuble shooting for plant system/component vibration

    KANEKO Shigehiko

    The Reference Collection of Annual Meeting   3   165 - 166  2003

    DOI CiNii

  • A study on annular leakage-flow-induced vibrations

    DW Li, S Kaneko, S Hayama

    JOURNAL OF FLUIDS AND STRUCTURES   16 ( 7 ) 909 - 930  2002.10  [Refereed]

     View Summary

    The flow-induced vibration for an annular leakage-flow system is studied theoretically and experimentally. The annular leakage-flow system consists of a fixed duct, a flexibly mounted inner cylinder allowed to move translationally and rotationally inside the duct, and a viscous fluid flow in the annular passage between the duct and the inner cylinder. A numerical method is developed to analyze the flutter instability of the flow-induced vibration of the inner cylinder. In the method, a critical flow rate is introduced to describe the flutter instability. The experiment on the annular leakage-flow-induced vibration is carried out, and a critical flow rate of the flutter instability is obtained for some annular leakage-flow systems with different passage increment ratios as well as the eccentricities. The calculated results are in good agreement with the experimental results. (C) 2002 Elsevier Science Ltd. All rights reserved.

    DOI

  • A Study on Countermeasures against Wind-Induced Cable Vibrations in a Cable-Stayed Bridge by Changing Vibration Modes (Design Method and Application to an Actual Cable)

    Ryuji Nakano, Shigehiko Kaneko, Yoshinori Matsunaga, Ryuta Katamura

    Proc. of the Sixth International Conf. on Motion and Vibration Control   6 ( 1 ) 531 - 536  2002

     View Summary

    This paper deals with a new countermeasure against wind-induced cable vibrations called "changing vibration modes method", in which growth of the unstable fundamental vibration mode is suppressed by dissipating vibration energy in higher mode generated by a permanent magnet installed near the lower end of the cable. In this paper, first, a parameter design method for "changing vibration modes method" is proposed and we showed its effectiveness by simulation results. Second, the proof that this countermeasure was effective against rain-wind induced vibration is demonstrated by trial application to an actual bridge.

    CiNii

  • Nonlinear Analysis of Sheet Flutter Based on Multibody Dynamics

    Shigehiko KANEKO, Xiaoshosan Wu

    Proc. of the First Asian Conference on Multibody Dynamics, Iwaki     486 - 493  2002

    DOI

  • Sheet Flutter Analysis Based on Multibody Dynamics

    Shigehiko KANEKO, Xiaoshosan Wu

    ESDA2002, ASME 6th Biennial Conference on Engineering Systems Design and Analysis(AMP-118: CD-ROM)    2002

  • Optical fiber cable vibrations induced by leakage flow during coating process

    S Kaneko, Y Ozaki, T Watanabe

    PROCEEDINGS OF THE 5TH INTERNATIONAL SYMPOSIUM ON FLUID STRUCTURE INTERACTION, AEROELASTICITY, FLOW INDUCED VIBRATION AND NOISE, PTS A AND B     1159 - 1167  2002  [Refereed]

     View Summary

    Optical fiber cables constitute one the key elements supporting current information technology society. Recently, the price reduction is becoming competitive among optical fiber manufacturers. In order to meet such a need, the manufacturers are now trying to increase the operating process speed when they manufacture optical fiber cables. Under these circumstances, severe vibrations were observed on a fiber cable traveling at a high speed during coating process. This paper summarizes a case study concerning traveling optical fiber vibrations and the examination results on the mechanism of vibrations. First, we outline the characteristics of traveling cable vibrations, secondly, we explain the results of model cable vibration tests and finally, we describe the theory to clarify the mechanism of the traveling cable vibrations. In the analytical part, we start with the equation of motion of a traveling cable together with the effect of the fluid force due to the leakage flow induced in a coating dice. The effect of the leakage flow in a coating dice is formulated based on annular leakage flow theory developed by author's group where the effect of viscosity of the coating material on the instability is taken into account. Then, the equation of a traveling cable under the effect of the leakage flow at the supporting point is successfully formulated. Based on the linearized equation of motion for the traveling cable, eigenvalue analysis was performed which leads to instability criteria selecting dice configuration and the temperature of the coating material as parameters. Finally, calculated results were compared with test experimental results and discussion on the design parameters for the stable operation is made.

  • 離散はり要素を用いたすきま流れによって発生するシートのフラッタ解析

    金子成彦, 呉 小山

    日本機械学会論文集、C編   Vol.68 ( No.675 ) 3314 - 3321  2002  [Refereed]

  • 円柱構造物の抗力方向流力振動に関する研究(第2報)

    西原 崇, 金子成彦, 安川亮一, 渡邉辰郎

    日本機械学会論文集、C編   Vol.68 ( No.674 ) 2880 - 2888  2002  [Refereed]

  • 円柱構造物の抗力方向流力振動に関する研究(第1報)

    西原 崇, 金子成彦, 安川亮一, 渡邉辰郎

    日本機械学会論文集、C編   Vol.68 ( No.673 ) 2605 - 2613  2002  [Refereed]

  • A Study on Countermeasures against Wind-Induced Cable Vibrations in Cable-Stayed Bridge by Changing Vibration Modes : 4th Report, Experimental Application to an Actual Cable

    NAKANO Ryuji, KANEKO Shigehiko, KATAMURA Ryuta

    Transactions of the Japan Society of Mechanical Engineers. Series C.   Vol.68 ( No.672 ) 2233 - 2240  2002  [Refereed]

     View Summary

    In order to suppress vibrations of stay cables in cable-stayed bridges, the authors developed a new vibration reduction method called "Changing vibration modes method" using a permanent magnet. With this method, growth of the unstable fundamental vibration mode is prevented by dissipating energy of higher stable modes. The authors have confirmed in former reports that the proposed method effectively reduces the self-induced cable vibrations by both theoretical analyses and wind tunnel tests and design method of the device was proposed. In this report, first, the design process of a prototype of a control device is described. Second, higher mode vibrations generated by the action of the device were confirmed from the results of free vibration tests. Finally, efficiency of the proposed countermeasure against rain-wind-induced vibrations of an actual cable is clarified.

    CiNii

  • A Study on Countermeasures against Wind-Induced Cable Vibrations in Cable-Stayed Bridge by Changing Vibration Modes : 3rd Report, Design Method of a Control Device

    NAKANO Ryuji, KANEKO Shigehiko, KATAMURA Ryuta

    Transactions of the Japan Society of Mechanical Engineers. Series C.   Vol.68 ( No.672 ) 2225 - 2232  2002  [Refereed]

     View Summary

    In order to suppress vibrations of stay cables in cable-stayed bridges, the authors developed a new vibration reduction method called "Changing vibration modes method" using a permanent magnet. The authors have confirmed its effectiveness in former reports by both theoretical analyses and wind tunnel tests. In second report, the authors analyzed cable vibrations by taking account of only an unstable mode and clarified how the design parameters such as a gap and magnetic force affect the control efficiency. In this report, accuracy of the analysis is further improved by introducing the higher modes effects as an "equivalent aerodynamic damping". Then, a design procedure of the parameters is proposed on the basis of the improved analysis, and its validity is shown by wind tunnel test results.

    CiNii

  • スキルアップ教育手段としてのPBL−新しい産学研究協力の試み−

    渡邉辰郎, 金子成彦

    工業教育   Vol.50 ( No.3 ) 83 - 86  2002  [Refereed]

  • Nonlinear Leakage Flow Induced Sheet Flutter Analysis using Discretized Beam Elements

    Wu Xiao shan, Kaneko Shigehiko

    The proceedings of the JSME annual meeting   2002   155 - 156  2002

     View Summary

    It is known that flutter of a traveling sheet may occur during its manufacturing process under the influence of leakage flow between the traveling sheet and a guide. In order to avoid the quality defectiveness like wrinkle due to the unsteady phenomenon happening on the sheet, a nonlinear stability analysis of sheet subjected to a leakage flow are performed to study the behavior of sheet in this paper. Concretely, sheet is described as a model consisting of mass less beam elements, springs and discrete mass particles, in which the mass of each particle and spring coefficients are calculated based on the beam model. During the formulation of fluid dynamic forces, nonlinear terms are taken into account for simulation of large-amplitude vibration of sheet, showing the appearance of limit cycle vibration in high flow velocity.

    DOI CiNii

  • Experiences on FIV of Overflow Weir in Nuclear Power Plant

    Shigehiko KANEKO

    Proc. of Commemorative International Symposium of the 40th Anniversary of the Foundation of the Osaka Electro-Communication University   Vol.2   233 - 243  2001

  • Global Noise Control of the Enclosed Sound Fields Using Active Structural-Acoustic Control

    Doh-Hyoung Kim, Shigehiko Kaneko

    Proc. of the Fourth Japan-Korea Symposium of Frontiers in vibration Science and Technology, Tokyo     7 - 8  2001

  • Impact Damping Estimation of Single U-Bend Tube

    Risa Kobayashi, Xiaoshosan Wu, Yuichi Ozaki, Shigehiko Kaneko, Tatsuo Watanabe

    Proc. of the Fourth Japan-Korea Symposium of Frontiers in vibration Science and Technology, Tokyo,     113 - 114  2001

    CiNii

  • Aerodynamic Vibration of Combined Rigid Bodies due to Leakage Flow (The Effect of Body Shapes and Support Condition)

    Shigehiko Tanaka, Takashi Hirata, Shigehiko Kaneko, Tatsuo Watanabe

    ASME PVP-Vol.420-2, Flow Induced Vibration ?2001-   Vol.2   45 - 52  2001  [Refereed]

    CiNii

  • 振動モードの切替えによる斜張橋斜材ケーブルの制振方法に関する研究(第2報、ギャップがある場合のケーブル振動解析)

    中野龍児, 金子成彦, 片村立太

    日本機械学会論文集、C編   Vol.67 ( No.658 ) 1799 - 1806  2001  [Refereed]

  • K-1235 Self-excited Oscillation of an Elastically Supported Center Body Induced by a Swirling Leakage Flow Flowing into a Conical Gap

    Kido Takahiro, Kaneko Shigehiko, Watanabe Tatsuo

    The proceedings of the JSME annual meeting   1   151 - 152  2001

     View Summary

    In order to identify the mechanism of a swirling leakage flow induced turbo pump axial vibration, as a first step, we analyzed steady and unsteady pressure distribution along the conical narrow passage when the vibration of an elastically supported center body is excited. In this work, we applied leakage flow theory to the conical leakage path taking the effect of inlet flow boundary conditions in to account. Then, we made comparison between calculated and measured value and found that our proposed method of calculating steady and unsteady pressure gives reasonable result.

    DOI CiNii

  • A Study on Countermeasures against Wind-Induced Cable Vibrations in Cable-Stayed Bridge by Changing Vibration Modes: 2nd Report, Cable Vibration Analyses Taking Account of Gap Effect

    Ryuji Nakano, Shigehiko Kaneko, Ryuta Katamura

    Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   67 ( 658 ) 1799 - 1806  2001  [Refereed]

     View Summary

    Vibrations of stay cables are often induced by wind because of their aerodynamic instability. They must be suppressed to prevent cable fatigue and to allay passenger fear. Although various countermeasures have been developed, totally effective one has not yet been established. The authors have proposed a new vibration reduction method called “Vibration modes changing method” using a permanent magnet. A magnet installed near the end of the cable changes the vibration modes passively by repeating motions of constraining and releasing cables. With this method, growth of the unstable fundamental vibration mode is prevented by dissipating energy of higher stable modes. Comparing with other methods, it is expected to improve low temperature characteristics, maintenance and manufacturing cost. Considering only unstable fundamental vibration modes, the vibration analyses were carried out taking account of gap effects. The results agree well with wind tunnel tests and the design conditions were obtained. © 2001, The Japan Society of Mechanical Engineers. All rights reserved.

    DOI

    Scopus

  • Self-excited sloshing due to the fluid discharge over a flexible plate weir

    H Nagakura, S Kaneko

    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME   122 ( 2 ) 192 - 197  2000.05  [Refereed]

     View Summary

    This paper presents an analytical model for the self-excited sloshing due to the fluid discharge over a flexible weir, as observed in the cooling circuit of the French fast breeder reactor, Super-Phenix-1. To clarify the instability mechanism, we analyzed the case in which a rectangular reservoir was divided into an upstream and a downstream plenum by a flexible plate weir. The kinematic and dynamic effects of the discharged fluid on downstream plenum sloshing are discussed in details. Calculations are presented for the rectangular fluid-structure model with successively increasing fluid level difference between the upstream and downstream plenums, and the instability mechanism is examined. [S0094-9930(00)00302-4].

  • Self-excited oscillations of dual cylindrical flexible weir shells due to overflow fluid

    S Tanaka, S Kaneko, T Watanabe

    JOURNAL OF VIBRATION AND CONTROL   6 ( 3 ) 351 - 373  2000.03  [Refereed]

     View Summary

    Self-excited oscillations of the structure coupled with inner fluid occurred in the insulation wall cooling system of the fast breeder reactor Super-Phenix-l (SPX-1) in France during test operations. In this system, lower temperature sodium going up along the inside of the main vessel in a feeding plenum brims over a cylindrical flexible weir shell and flows into a restitution plenum. It is reported that the self-excited oscillations were found to occur at the same natural frequency of the sloshing in the restitution plenum, the free surface of the fluid in both feeding and restitution plenums oscillated at large amplitudes, and the cylindrical shell was found to oscillate with an oval vibration mode instability. Such an instability is called a coupled sloshing mode. In this study, the authors analyzed and performed experiments on the instability of a multiple cylindrical structure system that has dual flexible weir shells. They measured self-excited oscillations changing various parameters such as discharge flow rate, difference of the liquid heights between feeding and restitution plenums, and so on. In the experiment, it was found that dual cylindrical shells oscillate in and out of phase with each other with an oval vibration mode under the specific conditions. Comparison between theoretically and experimentally obtained instability regions was made showing good agreement.

  • Self-excited sloshing due to the fluid discharge over a flexible cylindrical weir

    H Nagakura, S Kaneko

    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME   122 ( 1 ) 33 - 39  2000.02  [Refereed]

     View Summary

    This paper presents an analytical model for the self-excited sloshing due to the fluid discharge over a flexible weir, as observed in the cooling circuit of the French fast breeder reactor, Super-Phenix-1. To clarify the instability mechanism, we analyzed the case in which an annular reservoir wad divided into an upstream and a downstream plenum by a flexible cylindrical weir. The kinematic and dynamic effects of the discharged fluid on downstream plenum sloshing are discussed in details. Calculations are presented for the cylindrical fluid-structure model with successively increasing fluid level difference between the upstream and downstream plenums, and the instability mechanism is examined. [S0094-9930(00)00901-X].

  • Dynamical modeling of deepwater-type cylindrical tuned liquid damper with a submerged net

    S Kaneko, Y Mizoto

    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME   122 ( 1 ) 96 - 104  2000.02  [Refereed]

     View Summary

    An analytical model for describing the effectiveness of a deepwater-type cylindrical tuned liquid damper (TLD) with a submerged net for suppressing horizontal vibration of structures is first proposed. In this study, we performed calculations to estimate the effectiveness of a deepwater-type cylindrical TLD based on a proposed dynamical model and compared with experimental results obtained by shaking table experiments and free oscillation tests. In particular, the effect of hydraulic resistance produced by a submerged net and the liquid depth ratio (the ratio of the liquid depth to the diameter of the cylindrical tank) are examined intensively. In the analysis, employing finite amplitude wave theory and Galerkin method in the case of cylindrical tank, we obtained hydrodynamic forces and the free surface elevations. Then, combining the hydrodynamic forces with the equation of motion of the structure, damped transient responses were calculated. The calculated results thus obtained were compared with the experimental results, by which the validity of the modeling methodology was confirmed. [S0094-9930(00)00101-3].

  • Leakage flow induced flutter of highly flexible structures

    S Kaneko, S Tanaka, T Watanabe, H Fujitani

    FLOW-INDUCED VIBRATION     811 - 818  2000

     View Summary

    Pager sheet nutter observed in paper manufacturing machines is the subject of this work. To analyze the basic mechanism of the problem, we discuss the case where a sheet of paper with both ends cramped is fixed in the center of the channel and the airflow is running parallel to the sheet in a narrow passage between a rigid wall and a flexible sheet. The sheet is modeled as a beam like structure subjected to tension and FEM is employed to formulate the problem. To obtain fluctuating fluid force acting on the sheet, unsteady fluid dynamic analysis based on the leakage-flow approximation is applied. Combining FEM based structural equation together with fluctuating fluid force vector acting on each element, fluid-structure coupled vibration is analyzed and the characteristic equation determining the stability of the system is derived. Then, eigen-value analysis is performed to calculate the critical flow velocity and the frequency of the nutter. Comparison with experimental results show that unstable behavior of the sheet coupled with running flow can be predicted by the method of calculation proposed in this paper.

  • Vibration Analysis of Rotors with a Fluid Balancer (1st Report, Shallow-Water Sloshing Analysis of Liquid in a Whirling Ring)

    KASAHARA Masayuki, KANEKO Shigehiko, ISHII Hiroshi

    Transactions of the Japan Society of Mechanical Engineers. Series C.   Vol.66 ( No.646 ) 1762 - 1768  2000  [Refereed]

     View Summary

    This research deals with the vibration of rotors containing liquid, such as rotors of washing machines with a fluid balancer, and is intended to predict the occurrence of self-excited vibration and to evaluate some other characteristics of these rotors by analysis. We developed an analytical method using the assumption of shallow-water sloshing to predict the motion of liquid contained in a whirling ring, and made some calculations for various whirling rates. These calculations confirmed the validity of the method, and yielded following results. (a)Not only major resonances, but also secondary resonances peculiar to nonlinear systems occur when multiples of the exciting frequency correspond to natural frequencies of sloshing. (b)There are some isolated waves(or solitons)near resonance points, and the number of solitons changes when whirling rates changes slightly.

    CiNii

  • 振動モードの切替えによる斜張橋斜材ケーブルの制振方法に関する研究

    中野龍児, 金子成彦, 片村立太

    日本機械学会論文集、C編   Vol.66 ( No.647 ) 2173 - 2180  2000  [Refereed]

  • Self-excited Oscillation of a Collapsible Tube Simulating Blood Vessel

    KANEKO Shigehiko, FUKUDOME Hiroki, YOSHIZAWA Yasuhiro

    The proceedings of the JSME annual meeting   2000   251 - 252  2000

    DOI CiNii

  • A Study on Countermeasures against Wind-Induced Cable Vibrations in Cable-Stayed Bridge by Changing Vibration Modes

    Ryuji Nakano, Shigehiko Kaneko, Ryuta Katamura

    Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   66 ( 647 ) 2173 - 2180  2000  [Refereed]

     View Summary

    Vibrations of stay cables are often induced by wind because of their aerodynamic instability. They must be suppressed to prevent cable fatigue and to allay passenger fear. Although various countermeasures have been developed, totally effective one has not yet been established. In this paper, the authors propose a new method using a permanent magnet. A magnet installed near the end of the cable changes the vibration modes passively by repeating motions of constraining and releasing cables. With this method, growth of the unstable fundamental vibration mode is prevented by dissipating energy of higher stable modes. Comparing with other methods, it is expected to improve low temperature characteristics, maintenance and manufacturing cost. After describing the principle, fundamental studies on energy transferring mechanism were carried out and it was verified that the lower modes energy is distributed to the higher modes when the cable is released from the magnet. The effectiveness of this method was confirmed by wind tunnel tests and numerical simulations. © 2000, The Japan Society of Mechanical Engineers. All rights reserved.

    DOI

    Scopus

  • Modeling of deepwater-type rectangular tuned liquid damper with submerged nets

    S Kaneko, O Yoshida

    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME   121 ( 4 ) 413 - 422  1999.11  [Refereed]

     View Summary

    An analytical model for describing the effectiveness of deepwater-type tuned liquid damper (TLD) with submerged nets for suppressing horizontal vibration of structures is proposed. TLD is a damping device for suppressing the vibration of long-period structures such as high-rise buildings, tall towers, the pylons of cable stayed bridges, and so on. The damping force is created by the hydrodynamic force caused by the sloshing of water contained in rectangular tanks located on top of such structures. In this study, we proposed the dynamical model for analyzing deepwater-type TLD (DTLD) where the liquid depth is deep compared with the length of the rectangular tank. In particular, the effect of hydraulic resistance produced by submerged nets installed in the tank is examined intensively. In the analysis of DTLD, employing finite amplitude wave theory, we obtained the hydrodynamic force and the dissipation energy by using Galerkin method, taking the effect of submerged nets into account. The calculated results thus obtained are compared with experimental results, by which the validity of the modeling methodology is confirmed. Finally, the case in which DTLD with nets is installed on an actual structure is investigated both theoretically and experimentally and the the performance of DTLD is illustrated.

  • Modeling of tuned liquid damper with submerged nets

    S Kaneko, M Ishikawa

    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME   121 ( 3 ) 334 - 343  1999.08  [Refereed]

     View Summary

    An analytical model for describing the effectiveness of tuned liquid damper (TLD) with submerged nets for suppressing horizontal vibration of structures is proposed Dissipation energy due to the liquid motion under sinusoidal excitations is calculated bused on nonlinear shallow water wave theory. In particular, the effects of hydraulic resistance produced by nets installed in a tank on the performance of TLDs are examined. The results of dissipation energy theoretically obtained are confirmed by experiments. To show the effectiveness of the proposed analytical model for TLD-structure interaction problems, the case in which TLD with nets is installed on top of a pylon of a cable-stayed bridge is described and the calculated results are compared with the actual experimental data. In the calculation, it is shown that the optimal damping factor, as is the case for tuned mass dumpers (TMD), can be produced by the nets, and the effectiveness of TLD with nets are demonstrated.

  • Analytical model for self-excited vibration of an overflow flexible plate weir

    S Kaneko, H Nagakura, R Nakano

    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME   121 ( 3 ) 296 - 303  1999.08  [Refereed]

     View Summary

    An analytical mode for the self-excited vibration of an overflow flexible weir as observed in the French demonstration fast breeder reactor, Super Phenix-1, is proposed. The instability condition was derived for the case in which the plate vibrates at the frequency of the downstream rank sloshing. In this analysis, the flexible plate weir is modeled as a simply supported-free-simply supported-clamped rectangular plate. Eigenfunction expansions were applied for analyzing both plate vibrations and the downstream rank sloshing. The effect of an overflow liquid is formulated based on the assumption that the momentum change due to the collision of apr overflow liquid partly transmitted to the pressure,ise on the free surface. As a result, the characteristic equation of the system yielding the theoretical stability boundary, ms obtained The stability boundary thus derived agreed well with experimental results.

  • Flow Induced Flutter of Paper Sheet

    Shigehiko Kaneko

    Proc. of the Second Japan-Korea Symposium of Frontiers in Vibration Sciences and Technology, Hachioji, Japan     32 - 34  1999

  • Wake Induced Flutter of Leeward Cable Used for Cable Stayed Bridges

    Yasuhiro Yoshizawa, Shigehiko Kaneko

    Proc. of the Second Japan-Korea Symposium of Frontiers in Vibration Sciences and Technology, Hachioji, Japan     30 - 31  1999

  • Aerodynamic Vibration of Trains Running in a Tunnel at High Speed

    Shigehiko Tanaka, Shigehiko Kaneko

    Proc. of the Second Japan-Korea Symposium of Frontiers in Vibration Sciences and Technology, Hachioji, Japan     28 - 29  1999

  • Self-excited Oscillation of an Elastically Supported Center Body due to Swirling Leakage Flow

    Shigehiko Kaneko, Hideaki Ueta, Ryoichi Yasukawa, Tatsuo Watanabe, Hisayuki Motoi

    Proc. Asia Pacific Vibration Conf.1999   Vol.2   886 - 891  1999

  • 環状すきま励起振動に関する研究(第2報、安定性解析法及び実験)

    李 東偉, 金子成彦, 葉山眞治

    日本機械学会論文集、B編   Vol.65 ( No.635 ) 2257 - 2262  1999  [Refereed]

  • 環状すきま励起振動に関する研究(第1報、非定常圧力分布及び非定常流体力)

    李 東偉, 金子成彦, 葉山眞治

    日本機械学会論文集、B編   Vol.65 ( No.635 ) 2251 - 2256  1999  [Refereed]

  • 溢流によって発生する二重円筒弾性堰の自励振動

    田中成彦, 金子成彦

    日本機械学会論文集、C編   Vol.65 ( No.634 ) 2226 - 2234  1999  [Refereed]

  • A study on the annular leakage-flow-induced vibrations (2nd report, stability analysis and experiments for translationally and rotationally coupled two-degree-of-frccdom systems)

    Deng-Wei Li, Shigehiko Kaneko, Shinji Hayama

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B   65 ( 635 ) 2257 - 2262  1999  [Refereed]

     View Summary

    In this study, the stability of annular Ieakage- flow- induced vibrations was investigated theoretically and experimentally for a translationally and rotationally coupled two- degree- of- freedom system. The critical flow rate was both theoretically and experimentally obtained as a function of the passage increment ratio and the eccentricity of the passage. A good agreement between the theoretical and experimental results was obtatined. It was discovered both theoretically and from the experiments that instability will occur in the case of a divergent passage: the eccentricity of the passage lowers the stability of the systems.

    DOI

    Scopus

    6
    Citation
    (Scopus)
  • A study on the annular leakage-flow-induced vibrations (1st report, stability for translational and rotationalsingle-degree-of-freedom systems)

    Dong-Wei Li, Shigehiko Kaneko, Shinji Hayama

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B   65 ( 635 ) 2251 - 2256  1999  [Refereed]

     View Summary

    This study reports the stability of annular leakage-flow-induced vibrations. The pressure distribution of fluid between a fixed outer cylinder and a vibrating inner cylinder was obtained in the case of a translationally and rotationally coupled motion of the inner cylinder. The unsteady fluid force acting on the inner cylinder in the case of translational and rotational single-degree-of- freedom vibrations was then expressed in terms proportional to the acceleration, velocity, and displacement. Then the critical flow rate (at which stability was lost) was determined for an annular leakage-flow-induced vibration. Finally, the stability was investigated theoretically. It is known that instability will occur in the case of a divergent passage, but the critical flow rate depends on the passage increment in a limited range: the eccentricity of the passage and the pressure loss factor at the inlet of the passage lower the stability.

    DOI

    Scopus

    8
    Citation
    (Scopus)
  • Application of Active Tension Control for Suppressing Vortex-Induced and Wake-Induced Cable Vibrations

    Shigehiko Kaneko, Marsdi Budiutomo, Tatsuo Watanabe, Ryuji Nakano

    Proc. of the Second World Congress for Structural Control   Vol.1   681 - 688  1998

  • Countermeasures against Wind-Induced Cable Vibrations in Cable-Stayed Bridge by Changing Vibration Modes

    Ryuji Nakano, Ryuta Katamura, Shigehiko Kaneko

    Proc. of the Fourth International Conf. on Motion and Vibration Control   Vol.1   67 - 72  1998

  • Self-excited Oscillations of Dual Cylindrical Flexible Weir Shells due to Over-flow Fluid

    Shigehiko Tanaka, Tatsuo Watanabe, Shigehiko Kaneko

    Proc. of the first Korean-Japan Symposium of Frontiers in Vibration Science and Technology     37 - 38  1998

  • Mode-Locking and Quasi-Periodicity in the Bifurcation Behavior of a Vortex Shedding Model

    Mureithi,N.W, Masaki,R, Kaneko,S, Nakamura,T

    ASME PVP-Vol.363, Flow-Induced Vibration and Transient Thermal-Hydraulics     19 - 26  1998  [Refereed]

  • 移動する円筒タンク内液体のスロッシング抑制制御

    山形浩実, 金子成彦

    日本機械学会論文集、C編   Vol.64 ( No.621 ) 200 - 208  1998  [Refereed]

  • 流入流出のある矩形容器におけるスロッシングの非線形応答

    町田剛敏, 金子成彦, 渡辺辰郎

    日本機械学会論文集、C編   Vol.64 ( No.620 ) 68 - 76  1998  [Refereed]

  • 弾性堰を越える流れによって発生する自励的液面揺動に関する研究(第3報、模型試験結果と解析結果の比較および系の安定性に影響を及ぼす各種パラメータに関する考察)

    長倉 博, 金子成彦

    日本機械学会論文集、C編   Vol.64 ( No.624 ) 98 - 101  1998  [Refereed]

  • 弾性堰を越える流れによって発生する自励的液面揺動に関する研究(第2報、円筒堰の場合に関する定式化と不安定発生機構)

    長倉 博, 金子成彦

    日本機械学会論文集、C編   Vol.64 ( No.623 ) 136 - 144  1998  [Refereed]

  • 弾性堰を越える流れによって発生する自励的液面揺動に関する研究(第1報、平板堰の場合に関する定式化と不安定発生機構)

    長倉 博, 金子成彦

    日本機械学会論文集、C編   Vol.64 ( No.623 ) 127 - 135  1998  [Refereed]

  • Sloshing Suppression Control of Contained Liquid in a Moving Cylindrical Container

    Hiromi Yamagata, Shigehiko Kaneko

    Proc. of the 1997 Asia-Pacific Vibration Conf   Vol.1   671 - 676  1997

  • Self-excited Sloshing Caused by the Fluid Discharge over the Flexible Plate Weir

    Shigehiko Kaneko, Tatsuo Watanabe, Yasuhiro Mohri

    Proc. of the 1997 Asia-Pacific Vibration Conf   Vol.1   567 - 572  1997

  • Dynamical Modeling of Deep Water Type Cylindrical Tuned Liquid Damper with a Submerged Net

    Shigehiko Kaneko, Yasuo Mizota

    ASME PVP-Vol.337, Fluid-Structure Interaction,     19 - 30  1996

  • Control of Vortex Induced Vibrations of a Cable via Active Stiffness Variation

    Shigehiko Kaneko, Tatsuo Kurohane, Tetsu Konish, Young-Kyun Ha

    Proc. Third International Conf. on Motion and Vibration Control   Vol.2   59 - 64  1996

  • A Study on Self-excited Sloshing due to the Fluid Discharge over a Flexible Weir

    Hiroshi Nagakura, Shigehiko Kaneko

    ASME PVP-Vol.310, Fluid-Structure Interaction and Structural Mechanics   310   15 - 25  1995

    CiNii

  • Sliding Mode Control of Vortex Induced Vibrations via Active Stiffness Variation

    Young-Kyun Ha, Shigehiko Kaneko

    Proc. Asia Pacific Vibration Conf.1995   Vol.1   197 - 202  1995

  • Nonlinear Response of Sloshing with Steady Circulating Flow

    Taketoshi Machida, Shigehiko Kaneko, Rumi Nakabayashi

    ASME PVP-Vol.310, Fluid-Structure Interaction and Structural Mechanics     37 - 54  1995  [Refereed]

  • Effectiveness of Tuned Liquid Damper with a Submerged Net for Actual Structures

    Yasuo Mizota, Shigehiko Kaneko

    Proc. Second International Conference on Motion and Vibration Control   Vol.2   198 - 502  1994

  • Stability of a Cantilever Beam Subjected to the One-Dimensional Leakage Flow

    Hiroshi Nagakura, Shigehiko Kaneko

    Proc. Asia Pacific Vibration Conf.'93   Vol.1   248 - 253  1993

  • Active Vibration Control of Free Surface Oscillations in a Transferring Liquid Container

    Shigehiko Kaneko, Hiroyoshi Namba

    Proc. Asia Pacific Vibration Conf.'93,   Vol.1   144 - 149  1993

  • Effectiveness of Shallow Water and Deep Water Type Rectangular Tuned Liquid Damper with Submerged Nets for Actual Structures

    Yasuo Mizota, Shigehiko Kaneko

    Proc. Asia Pacific Vibration Conf.'93   Vol.1   318 - 323  1993

  • Dynamical Modeling of Shallow Water and Deep Water Type Rectangular Tuned Liquid Damper with Submerged Nets

    Osamu Yoshida, Shigehiko Kaneko

    Proc. Asia Pacific Vibration Conf.'93,   Vol.1   312 - 317  1993

  • A Study on Active Control of Leakage Flow Induced Vibrations

    Shigehiko Kaneko, Kazuo Hirota

    Proc. First International Conference on Motion and Vibration Control   Vol.2   1135 - 1140  1992

  • 1次元平行すきま流路内に置かれた片持ち弾性はりの安定性

    長倉 博, 金子成彦

    日本機械学会論文集、C編   Vol.58 ( No.546 ) 352 - 359  1992  [Refereed]

  • Vibration of a Flexible Plate Weir due to the Fluid Discharge

    Shigehiko Kaneko, Tatsuo Watanabe, Ryuji Nakano

    Proc. of the 1991 Asia-Pacific Vibration Conf   Vol.2   10.13 - 10.18  1991

  • Stability of a Cantilever Beam Subject to One-Dimensional Leakage Flow

    Hiroshi Nagakura, Shigehiko Kaneko

    Trans.11th SMIRT   Vol.J   135 - 140  1991

  • いつ流に伴うせきの自励振動の研究(第2報、流力弾性振動モードの自励振動の発生機構)

    久野勝美, 金子成彦

    日本機械学会論文集、C編   Vol.56 ( No.525 ) 16 - 22  1990  [Refereed]

  • Self-excited Vibration of a Rotor Completely Filled with Two Kinds of Immiscible Liquids

    Shigehiko Kaneko

    Proc. of Asia Vibration Conference '89     511 - 516  1989

  • いつ流に伴うせきの自励振動の研究(第1報、スロッシングモードの自励振動の発生機構)

    久野勝美, 金子成彦

    日本機械学会論文集、C編   Vol.55 ( No.511 ) 541 - 548  1989  [Refereed]

  • SELF-EXCITED OSCILLATION OF A HOLLOW ROTATING SHAFT PARTIALLY FILLED WITH A LIQUID .1. INSTABILITY BASED ON THE FLUID FORCE OBTAINED FROM BOUNDARY-LAYER THEORY

    S KANEKO, S HAYAMA

    BULLETIN OF THE JSME-JAPAN SOCIETY OF MECHANICAL ENGINEERS   28 ( 246 ) 2994 - 3001  1985  [Refereed]

  • 液体で部分的に満たされた中空回転軸系の自励振動に関する研究(境界層理論から得られた流体力に基づく不安定性)

    金子成彦, 葉山眞治

    日本機械学会論文集、C編   Vol.51 ( No.464 ) 765 - 772  1985  [Refereed]

  • On Free Surface Oscillation of a Liquid Partially Filling a Rotating Cylinder (2nd Report, The Calculation of Fluid Force Using Boundary Layer Approximation)

    Shigehiko Kaneko, Shinji Hayama

    Bull. JSME   Vol.26 ( No.221 ) 1993 - 2001  1983  [Refereed]

  • On Free Surface Oscillation of a Liquid Partially Filling a Rotating Cylinder (1st Report, Visualization of Resonant Mode and Analysis by Inviscid Theory)

    Shigehiko Kaneko, Shinji Hayama

    Bull. JSME   Vol.26 ( No.221 ) 1985 - 1992  1983  [Refereed]

  • 回転円筒容器内に部分的に含まれた液体の自由表面波に関する研究(第2報、境界層理論による流体力の計算)

    金子成彦, 葉山眞治

    日本機械学会論文集、C編   Vol.49 ( No.439 ) 381 - 391  1983  [Refereed]

  • 回転円筒容器内に部分的に含まれた液体の自由表面波に関する研究(第1報、共振モードの可視化と非粘性理論による解析)

    金子成彦, 葉山眞治

    日本機械学会論文集、C編   Vol.49 ( No.439 ) 370 - 380  1983  [Refereed]

  • THE CALCULATION OF FLUID FORCE USING BOUNDARY-LAYER APPROXIMATION .2. ON FREE-SURFACE OSCILLATIONS OF A LIQUID PARTIALLY FILLING A ROTATING CYLINDER

    S KANEKO, S HAYAMA

    BULLETIN OF THE JSME-JAPAN SOCIETY OF MECHANICAL ENGINEERS   26 ( 221 ) 1993 - 2001  1983  [Refereed]

  • VISUALIZATION OF RESONANT MODE AND ANALYSIS BY INVISCID THEORY .1. ON FREE-SURFACE OSCILLATIONS OF A LIQUID PARTIALLY FILLING A ROTATING CYLINDER

    S KANEKO, S HAYAMA

    BULLETIN OF THE JSME-JAPAN SOCIETY OF MECHANICAL ENGINEERS   26 ( 221 ) 1985 - 1992  1983  [Refereed]

▼display all

Books and Other Publications

  • 自動車用内装材とインテリアの快適性向上

    技術情報協会  2019.09

  • 基礎からわかる自動車エンジンのシミュレーション

    ( Part: Supervisor (editorial))

    コロナ社  2019.07

  • 基礎からわかる 自動車エンジンのモデルベースト制御

    ( Part: Supervisor (editorial))

    コロナ社  2019.02

  • 事例に学ぶ流体関連振動(第3版)

    技報堂出版  2018.11

  • ドライバ状態の検出、推定技術と自動運転、運転支援システムへの応用

    技術情報協会  2016.04

  • 火力発電技術必携(第8版)

    火力原子力技術協会  2016.03

  • 機械力学ハンドブック

    朝倉書店  2015.11

  • 事例で学ぶ数学活用法

    朝倉書店  2015.02

  • Flow-Induced Vibrations: Classifications and Lessons from Practical Experiences (2nd version)

    Elsevier  2013

  • 震災後の工学は何をめざすのか

    東京大学大学院工学系研究科編( Part: Contributor)

    内田老鶴圃  2012.07

  • 静音化&快音化-設計技術ハンドブック

    ( Part: Contributor)

    丸善出版  2012.02

  • 機械工学ハンドブック

    朝倉書店  2011.10

  • 事例に学ぶ流体関連振動(第2版)

    技報堂出版  2008.06

  • Flow-Induced Vibrations: Classifications and Lessons from Practical Experiences

    Elsevier  2008

  • 新版 機械工学便覧α2機械力学

    日本機械学会  2004.12

  • 事例に学ぶ流体関連振動

    技報堂出版  2003.09

  • 日本機械学会基準 蒸気発生器伝熱管U字管部流力弾性振動防止指針、JSME S 016

    日本機械学会  2002.03

  • 日本機械学会継続教育WEB教材「機械力学の基礎知識」

    日本機械学会  2002

  • 技術者の継続教育セミナー、材料と機械の力学

    日本機械学会  2001

  • 日本機械学会基準 配管内円柱状構造物の流力振動評価指針

    日本機械学会  1998

  • 流体力学ハンドブック

    日本流体力学会  1998

  • ビデオ名講義シリーズ、自励振動の話

    日本機械学会  1997

  • 機械工学事典

    日本機械学会  1997

  • 機械設計便覧 第3版

    丸善  1992

▼display all

Presentations

  • イノベーションを生み出す人材育成に必要な体験とは

    金子 成彦

    令和4年電気学会全国大会シンポジウム:イノベーションを生み出す人材育成 H3-2 

    Presentation date: 2022.03

    Event date:
    2022.03
     
     
  • 温熱環境を考慮した心臓血管系モデルの構築

    石川 佑輔, 夏 周正, 草鹿 仁, 金子 成彦

    日本機械学会2021年度年次大会 

    Presentation date: 2021.09

  • 車室内温熱環境とドライバーの眠気との関係

    夏 周正, 石川佑輔, 金子成彦, 草鹿 仁

    日本機械学会年次大会 

    Presentation date: 2020.09

  • 過給副室式ガスエンジンで生じるシリンダ内圧力振動の発生メカニズムの検討

    竹島康貴, 市橋弘光, 山崎由大, 金子成彦

    2019日本機械学会年次大会 

    Presentation date: 2019.09

    Event date:
    2019.09
     
     
  • ドライバーの体調急変予測に向けた数理モデルの精度向上に関する研究

    清水豊禾, 金子成彦, 草鹿仁

    2019日本機械学会年次大会 

    Presentation date: 2019.09

    Event date:
    2019.09
     
     
  • ガスタービン燃焼器を模した管の管内温度分布が音響的境界条件に与える影響の把握

    秋野広佑, 上道茜, 山崎由大, 金子成彦

    2019日本機械学会年次大会 

    Presentation date: 2019.09

    Event date:
    2019.09
     
     
  • HCCIエンジンのサイクル間ばらつきメカニズムの把握・ニューラルネットワークモデルの分析

    酒向優太朗, 武藤優哉, 山崎由大, 金子成彦, 疋田孝幸, 水野沙織, 藤井拓磨

    2019日本機械学会年次大会 

    Presentation date: 2019.09

    Event date:
    2019.09
     
     
  • 内部流体による振動抑制を考慮した配管ルーティングの多目的最適化

    藤島脩平, 上道茜, 山崎由大, 金子成彦, 高橋志郎

    2019日本機械学会年次大会 

    Presentation date: 2019.09

    Event date:
    2019.09
     
     
  • 領域モデルを用いたディーゼルエンジンの簡易NOxモデル

    中込杏, 高橋幹, 山崎由大, 金子成彦

    2019日本機械学会年次大会 

    Presentation date: 2019.09

    Event date:
    2019.09
     
     
  • 燃焼器内軸方向温度分布を考慮した燃焼振動共鳴周波数の検討

    三谷冠, 上道茜, 山崎由大, 金子成彦

    2019日本機械学会年次大会 

    Presentation date: 2019.09

    Event date:
    2019.09
     
     
  • 二次元隙間流れを考慮した使用済み燃料ラックの運動モデルの構築

    新木悠斗, 上道 茜, 金子成彦

    D&D 

    Presentation date: 2019.08

    Event date:
    2019.08
     
     
  • 磁気ばねとフリープレイダンパを用いたシートサスペンション機構の開発

    増野将大, 巻田聡一, 桑野竜次, 杉本栄治, 小倉由美, 藤田悦則, 金子成彦

    日本設計工学会中国支部講演 

    Presentation date: 2019.06

    Event date:
    2019.06
     
     
  • 体幹生体信号を用いた体調変動予測モデルの開発

    延廣良香, 藤田悦則, 内川竜一, 前田慎一郎, 小島重行, 小倉由美, 亀井勉, 村田幸治, 吉栖正生, 金子成彦

    日本設計工学会中国支部講演 

    Presentation date: 2019.06

    Event date:
    2019.06
     
     
  • 超音速ジェットとオリフィス板の干渉による音場・吸音材の装着による影響

    村田耀, 石井達也, 金子成彦

    日本機械学会関東支部第58回学生員卒業研究発表講演会 

    Presentation date: 2019.03

    Event date:
    2019.03
     
     
  • 仮想フィードバック構造を持つフィードフォワード制御器によるディーゼルエンジン吸排気系の過渡応答改善

    林知史, 旭輝彦, 平田光男, 高橋幹, 山崎由大, 金子成彦

    第6回計測自動制御学会制御部門マルチシンポジウム 

    Presentation date: 2019.03

    Event date:
    2019.03
     
     
  • 運転条件を考慮したCMACを用いたフィードバック誤差学習によるディーゼルエンジンの燃焼制御

    江口誠, 大森浩充, 高橋幹, 山崎由大, 金子成彦

    第6回計測自動制御学会制御部門マルチシンポジウム 

    Presentation date: 2019.03

    Event date:
    2019.03
     
     
  • 予混合的ディーゼル燃焼の熱発生率制御則の検討

    高橋幹, 山崎由大, 金子成彦

    第6回計測自動制御学会制御部門マルチシンポジウム 

    Presentation date: 2019.03

    Event date:
    2019.03
     
     
  • H∞制御器を用いたディーゼルエンジン吸排気系の多入出力アンチワインドアップ制御

    旭輝彦, 林知史, 平田光男, 高橋幹, 山崎由大, 金子成彦

    第6回計測自動制御学会制御部門マルチシンポジウム 

    Presentation date: 2019.03

    Event date:
    2019.03
     
     
  • 災害拠点病院における分散型電源システム最適導入量の検討

    海藤直記, 及川亮, 上道茜, 山崎由大, 金子成彦

    第15回日本地震工学シンポジウム 

    Presentation date: 2018.12

    Event date:
    2018.12
     
     
  • 適応出力フィードバックに基づくディーゼル燃焼における熱発生率の制御

    藤井聖也, 内田智, 水本郁朗, 高橋幹, 山崎由大, 金子成彦

    2018内燃機関シンポジウム 

    Presentation date: 2018.11

    Event date:
    2018.11
     
     
  • 走行時におけるエンジン制御モデルの自動適合の検討

    曹家楠, 高橋幹, 山崎由大, 金子成彦

    2018内燃機関シンポジウム 

    Presentation date: 2018.11

    Event date:
    2018.11
     
     
  • ディーゼルエンジンの過渡運転における熱発生のモデルベースト制御

    高橋幹, 山崎由大, 金子成彦, 藤井聖也, 水本郁朗

    2018内燃機関シンポジウム 

    Presentation date: 2018.11

    Event date:
    2018.11
     
     
  • 渡走行を想定したフィードバック誤差学習によるディーゼルエンジンの燃焼制御実験

    江口誠, 大森浩充, 高橋幹, 山崎由大, 金子成彦

    システム制御情報学会(幹事学会)第61回自動制御連合講演会 

    Presentation date: 2018.11

    Event date:
    2018.11
     
     
  • 多気筒ディーゼルエンジンにおける予混合的な燃焼のばらつき制御用モデル

    酒向優太朗, 高橋幹, 山崎由大, 金子成彦

    2018内燃機関シンポジウム 

    Presentation date: 2018.11

    Event date:
    2018.11
     
     
  • ドライバーの体調急変検知に向けた心臓血管系モデルの提案とその活用法に関する研究

    金子成彦, 角谷健斗, 進藤友陽

    自動車技術会秋季大会 

    Presentation date: 2018.10

    Event date:
    2018.10
     
     
  • 政策の科学に辿り着くまでの軌跡~数理モデルと多目的最適化手法の有効性

    金子成彦  [Invited]

    日本音響制御学会秋季発表会 

    Presentation date: 2018.10

    Event date:
    2018.10
     
     
  • 内部流体による振動抑制を考慮した配管ルーティングの多目的最適化

    八木正彰, 上道茜, 藤島脩平, 金子成彦, 高橋志郎

    日本機械学会最適化シンポジウム2018 

    Presentation date: 2018.10

    Event date:
    2018.10
     
     
  • ニューラルネットワークにおけるHCCI燃焼変動メカニズムの把握

    松本佑樹, 山崎由大, 金子成彦, 疋田孝幸, 水野沙織, 藤井拓磨

    日本機械学会年次大会 

    Presentation date: 2018.09

    Event date:
    2018.09
     
     
  • 生体信号を用いたベンチレーションシステムの開発(スポット冷却の衣服内気候に与える影響についての検討)

    元家達也, 藤田悦則, 吉栖正生, 塚本直樹, 小倉由美, 金子成彦

    日本設計工学会2018年度秋季大会研究発表講演会 

    Presentation date: 2018.09

    Event date:
    2018.09
     
     
  • カオス解析を用いた疲労度合の推定(ストレスの程度が人に与える影響について)

    延廣良香, 藤田悦則, 小倉由美, 吉栖正生, 金子成彦

    日本設計工学会2018年度秋季大会研究発表講演会 

    Presentation date: 2018.09

    Event date:
    2018.09
     
     
  • 血圧情報を利用した眠気推定精度向上に関する研究

    進藤友陽, 金子成彦

    LIFE2018 

    Presentation date: 2018.09

    Event date:
    2018.09
     
     
  • 管内の熱源が上流側音響境界条件に与える影響

    南野暖, 三谷冠, 上道茜, 金子成彦

    日本機械学会年次大会 

    Presentation date: 2018.09

    Event date:
    2018.09
     
     
  • ターボチャージャの機械損失予測の妥当性検証

    米澤知樹, 上道茜, 山崎由大, 金子成彦

    日本機械学会年次大会 

    Presentation date: 2018.09

    Event date:
    2018.09
     
     
  • 可視化による二段噴射天然ガスデュアルフューエルエンジンの燃焼特性の把握

    市橋弘光, 山崎由大, 金子成彦

    日本機械学会年次大会 

    Presentation date: 2018.09

    Event date:
    2018.09
     
     
  • 液体水素ターボポンプで発生する軸方向振動運動モデルの構築

    坂本和弥, 上道茜, 大西樹, 杉山敬幸, 金子成彦

    D&D2018 

    Presentation date: 2018.08

    Event date:
    2018.08
     
     
  • フリースタンディング式燃料ラックの4 自由度運動モデルの構築と設計指針の提案

    坂本和弥, 新木悠斗, 金子成彦

    D&D2018 

    Presentation date: 2018.08

    Event date:
    2018.08
     
     
  • 体調急変検知に向けた心臓血管系モデルの構築

    角谷健斗, 進藤友暢, 金子成彦

    D&D2018 

    Presentation date: 2018.08

    Event date:
    2018.08
     
     
  • 災害時の事業継続性を考慮した省エネルギー機器導入量最適化

    上道茜, 八木正彰, 及川亮, 山崎由大, 金子成彦

    安全工学シンポジウム2018 

    Presentation date: 2018.07

    Event date:
    2018.07
     
     
  • 軽油の多段噴射デュアルフューエルエンジンにおける燃焼および排気特性の把握

    市橋弘光, 山崎由大, 金子成彦

    第23回動力・エネルギー技術シンポジウム 

    Presentation date: 2018.06

    Event date:
    2018.06
     
     
  • Dedicated EGR を用いたガスエンジンシステムにおける複数燃焼モードの併用

    竹内智顕, 山崎由大, 上道茜, 金子成彦

    第23回動力・エネルギー技術シンポジウム 

    Presentation date: 2018.06

    Event date:
    2018.06
     
     
  • シリーズ『3.11』から7年 ①機会と人間を考える

    金子成彦  [Invited]

    地球システム・倫理学会、研究例会 

    Presentation date: 2018.05

    Event date:
    2018.05
     
     
  • 2自由度適応出力フィードバック制御に基づく3段噴射ディーゼルエンジン燃焼制御と定常試験による検証

    藤井聖也, 高橋幹, 水本郁朗, 山崎由大, 金子成彦

    JSAE2018春季大会 

    Presentation date: 2018.05

    Event date:
    2018.05
     
     
  • 離散化燃焼モデルを用いたディーゼルエンジン吸排気系のモデル構築とフィードフォワード制御

    林知史, 小泉純, 平田光男, 高橋幹, 山崎由大, 金子成彦

    JSAE2018春季大会 

    Presentation date: 2018.05

    Event date:
    2018.05
     
     
  • ディーゼルエンジンのモデルベースト制御システムにおける負荷領域拡大の検討

    山崎由大, 高橋幹, 酒向優太朗, 金子成彦

    JSAE2018春季大会 

    Presentation date: 2018.05

    Event date:
    2018.05
     
     
  • 災害拠点病院を対象とした分散型電源導入量の決定手法

    八木正彰, 上道茜, 山崎由大, 金子成彦

    OR学会春季大会 

    Presentation date: 2018.03

    Event date:
    2018.03
     
     
  • H∞制御理論によるディーゼルエンジン吸排気系のロバスト制御

    小泉純, 林知史, 平田光男, 高橋幹, 山崎由大, 金子成彦

    第5回制御部門マルチシンポジウム 

    Presentation date: 2018.03

    Event date:
    2018.03
     
     
  • 4段噴射を用いた予混合的なディーゼル燃焼のモデルベースト制御

    高橋幹, 山崎由大, 金子成彦

    第5回制御部門マルチシンポジウム 

    Presentation date: 2018.03

    Event date:
    2018.03
     
     
  • ロバスト調整則を用いたフィードバック誤差学習に基づくディーゼルエンジンの燃焼制御実験

    江口誠, 大森浩充, 高橋幹, 山崎由大, 金子成彦

    第5回制御部門マルチシンポジウム 

    Presentation date: 2018.03

    Event date:
    2018.03
     
     
  • 統計分析を用いた過給副室式ガスエンジンのシリンダ内圧力振動メカニズムの解明

    高居明弘, 山崎由大, 金子成彦, 佐古孝弘, 高島良胤

    第38回内燃機関シンポジウム 

    Presentation date: 2017.12

    Event date:
    2017.12
     
     
  • ディーゼルエンジン制御モデルにおける燃料噴射段数の拡張

    高橋幹, 酒向優太朗, 山崎由大, 金子成彦

    第38回内燃機関シンポジウム 

    Presentation date: 2017.12

    Event date:
    2017.12
     
     
  • ターボチャージャにおける機械損失モデルの構築

    上道茜, 坂上聡, 山崎由大, 金子成彦

    第38回内燃機関シンポジウム 

    Presentation date: 2017.12

    Event date:
    2017.12
     
     
  • エンジンのサイクル間ばらつきを推定するバーチャルセンサー

    西崎巽, 山崎由大, 金子成彦

    第38回内燃機関シンポジウム 

    Presentation date: 2017.12

    Event date:
    2017.12
     
     
  • SIP 革新的燃焼技術制御チームの研究活動状況

    金子成彦  [Invited]

    広島大学超高度エネルギー研究拠点シンポジウム 

    Presentation date: 2017.12

    Event date:
    2017.12
     
     
  • 多層ニューラルネットワークを用いたフィードバック誤差学習によるMIMOディーゼルエンジンシステムの燃焼制御

    江口誠, 大森浩充, 高橋幹, 山崎由大, 金子成彦

    第60回自動制御連合講演会 

    Presentation date: 2017.11

    Event date:
    2017.11
     
     
  • NOxを考慮したディーゼルエンジンのモデルベースト制御システムの検討

    高橋幹, 山崎由大, 金子成彦

    第60回自動制御連合講演会 

    Presentation date: 2017.11

    Event date:
    2017.11
     
     
  • 体調急変推定に向けた心臓血管系モデルの構築

    角谷健斗, 金子成彦

    LIFE2017(日本機械学会福祉工学シンポジウム) 

    Presentation date: 2017.09

    Event date:
    2017.09
     
     
  • 音響境界条件を考慮した燃焼振動発振周波数の検討

    上道茜, 金築一平, 金子成彦

    日本機械学会D&D2017 

    Presentation date: 2017.08

    Event date:
    2017.08
    -
    2017.09
  • ピッチング加振を受ける水平円筒容器内スロッシングの共振波高に対する多孔板の減衰効果のCFDを用いた評価

    新木悠斗, 上道茜, 山﨑由大, 金子成彦

    日本機械学会D&D2017 

    Presentation date: 2017.08

    Event date:
    2017.08
    -
    2017.09
  • メタンを燃料とする過濃SI運転時の燃焼および排気特性

    柿木将, 三好正城, 山崎由大, 上道茜, 金子成彦

    日本機械学会第22回動力・エネルギー技術シンポジウム 

    Presentation date: 2017.06

    Event date:
    2017.06
     
     
  • 天然ガス利用デュアルフューエルエンジンにおける経由多段噴射の燃焼特性

    酒向優太朗, 山崎由大, 上道茜, 金子成彦

    日本機械学会第22回動力・エネルギー技術シンポジウム 

    Presentation date: 2017.06

    Event date:
    2017.06
     
     
  • 災害リスクを考慮したCGS・PV・蓄電池から構成される分散型電源導入計画

    八木正彰, 上道茜, 山崎由大, 金子成彦, 坂東茂

    第36回エネルギー・資源学会 

    Presentation date: 2017.06

    Event date:
    2017.06
     
     
  • ターボチャージャーにおける伝熱と摩擦損失の解析

    窪山達也, 工藤毅暁, 森吉泰生, 坂上聡, 金子成彦

    自動車技術会春季大会 

    Presentation date: 2017

  • 土工機械向けの薄型サスペンション機構の開発

    小島重行, 増野将大, 小倉由美, 藤田悦則, 辻敏夫, 金子成彦

    第49回日本人間工学会中国・四国支部大会  (香川大学工学部) 

    Presentation date: 2016.12

  • 職業運転手の事故低減に対する面談の有効性―体表脈波データとの比較―

    落合直樹, 富田章代, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 辻敏夫, 吉栖正生, 金子成彦

    第49回日本人間工学会中国・四国支部大会  (香川大学工学部) 

    Presentation date: 2016.12

  • 自律神経活動に基づく居眠り運転警告装置の警告効果に関する研究

    松岡玄樹, 内川竜一, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第49回日本人間工学会中国・四国支部大会  (香川大学工学部) 

    Presentation date: 2016.12

  • 運転技能と運転中の疲労の進行度合いに関する研究

    内川竜一, 松岡玄樹, 小倉由美, 藤田悦則, 上村晴美, 村田幸治, 亀井勉, 辻敏夫, 吉栖正生, 金子成彦

    第49回日本人間工学会中国・四国支部大会  (香川大学工学部) 

    Presentation date: 2016.12

  • 体表脈波を用いた自覚なき疲労の簡易推定法

    堀川正博, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 辻敏夫, 金子成彦, 吉栖正生

    第49回日本人間工学会中国・四国支部大会  (香川大学工学部) 

    Presentation date: 2016.12

  • マイクロフローリアクターを用いた予混合気着火遅れ時間の予測法の検討

    福田豊, 竹島康貴, 上道茜, 山崎由大, 金子成彦

    第54回燃焼シンポジウム  (仙台国際センター) 

    Presentation date: 2016.11

  • 産学官で薦めるエンジン開発-SIP 革新的燃焼技術制御チームの研究活動状況

    金子成彦  [Invited]

    コベルコ科研セミナー 

    Presentation date: 2016.10

    Event date:
    2016.10
     
     
  • 入眠予兆現象捕捉のための呼吸に関する研究

    角谷健斗, 金子成彦

    日本機械学会2016年度年次大会  (九州大学) 

    Presentation date: 2016.09

  • ディーゼルエンジンのモデルベースト制御による実機運転試験

    池村亮祐, 山崎由大, 金子成彦

    日本機械学会2016年度年次大会  (九州大学) 

    Presentation date: 2016.09

  • 排気再吸入を伴うHCCIエンジンの制御モデルと制御シミュレーション

    林卓哉, 山崎由大, 金子成彦, 疋田孝幸, 水野沙織, 藤井拓磨

    日本機械学会2016年度年次大会  (九州大学) 

    Presentation date: 2016.09

  • これからのエンジンモデリングとモデルベースト制御に求められるもの

    金子成彦

    ETAS 車両制御シンポジウム2016 

    Presentation date: 2016.09

    Event date:
    2016.09
     
     
  • RR間隔を用いた眠気推定に向けた数理モデルの構築

    角谷健斗, 斉藤聡平, 坂上聡, 金子成彦

    日本機械学会機械力学計測・制御部門D&D2016 

    Presentation date: 2016.08

  • 人体ダミーを目指した柔軟体の数理モデルの構築

    天田直弥, 藍千喩, 金子成彦

    日本機械学会機械力学計測・制御部門D&D2016 

    Presentation date: 2016.08

  • フリースタンディング式使用済み燃料ラックの準三次元運動モデルの構築

    菅瞭介, 高居明弘, 金子成彦

    日本機械学会機械力学計測・制御部門D&D2016 

    Presentation date: 2016.08

  • ピッチング加振により励起される水平円筒容器内スロッシングと多孔板の減衰効果

    高居明弘, 酒井英充, 上道茜, 金子成彦

    日本機械学会機械力学計測・制御部門D&D2016 

    Presentation date: 2016.08

  • 過濃SI燃焼による筒内燃料改質がメタンHCCI燃焼に及ぼす影響

    三好正城, 山崎由大, 金子成彦, 上道茜

    第21回動力・エネルギー技術シンポジウム  (横浜市開港記念会館) 

    Presentation date: 2016.06

  • ディーゼルエンジンのモデルベースド制御

    池村亮祐, 山崎由大, 金子成彦

    第3回制御部門マルチシンポジウム,計測自動制御学会  (南山大学) 

    Presentation date: 2016.03

  • 確率ニューラルネットを用いた体調急変予測法の提案

    延川智範, 有國文也, 曽智, 栗田雄一, 平野陽豊, 藤田悦則, 金子成彦, 吉栖正生, 辻敏夫

    第25回計測自動制御学会中国支部学術講演会 

    Presentation date: 2016

  • マイクロジェットミキサー付ジェットエンジンの騒音予測

    原田拓弥, 石井達哉, 金子成彦

    日本機械学会年次大会2016 

    Presentation date: 2016

  • マイクロフローリアクターを用いた予混合気着火遅れ時間の推定

    福田豊, 上道茜, 山崎由大, 金子成彦

    日本機械学会年次大会2016 

    Presentation date: 2016

  • 水素を大量に含む燃料の燃焼振動現象

    金築一平, 上道茜, 金子成彦

    日本機械学会年次大会2016 

    Presentation date: 2016

  • 上下方向振動入力を前後方向入力に変換するペンデュラムサスペンション機構の開発

    小島重行, 小倉由美, 藤田悦則, 辻敏夫, 金子成彦

    第48回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2015.12

  • 疑似心音波形を用いた体調推定技術のフィールド実験での検討

    落合直輝, 松岡玄樹, 堀川正博, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第48回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2015.12

  • 疑似心音を用いた尿意の発現の簡易的捕捉法

    中島可南子, 延廣良香, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第48回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2015.12

  • 覚醒状態と睡眠状態における生体信号のリズムの比較検討

    延廣良香, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第48回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2015.12

  • 疑似心音を用いたドライバーの体調の簡易推定法

    堀川正博, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第48回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2015.12

  • パイロット噴射を考慮した多段噴射ディーゼルエンジンの簡易燃焼モデル

    池村亮祐, 清水文也, 山崎由大, 金子成彦

    内燃機関シンポジウム  (京都テルサ) 

    Presentation date: 2015.12

  • 筒内の混合気の不均質性を考慮した自己着火燃焼モデル

    上杉康登, 山崎由大, 金子成彦, 疋田孝幸, 津村雄一郎, 水野沙織

    内燃機関シンポジウム  (京都テルサ) 

    Presentation date: 2015.12

  • 旋回流中で形成される超過濃火炎

    上道茜, 山崎由大, 金子成彦

    第53回燃焼シンポジウム  (つくば国際会議場) 

    Presentation date: 2015.11

  • 多気筒エンジンの簡易吸排気モデルの構築

    川澄祐介, 上杉康登, 山崎由大, 金子成彦, 疋田孝幸, 水野沙織, 津村雄一郎

    日本機械学会2015年度年次大会  (北海道大学) 

    Presentation date: 2015.09

  • マイクロフローリアクターによる排気再循環を伴う予混合気の自己着火特性の把握

    林卓哉, 上道茜, 山崎由大, 金子成彦

    日本機械学会2015年度年次大会  (北海道大学) 

    Presentation date: 2015.09

  • バイオマス由来ガスの圧縮自己着火燃焼におけるオゾン添加時の化学反応メカニズム

    池村亮祐, 宮内健太, 山崎由大, 金子成彦

    日本機械学会2015年度年次大会  (北海道大学) 

    Presentation date: 2015.09

  • 同エネバイオマス由来ガスを利用したエンジンへのオゾン添加の影響

    池村亮祐, 山崎由大, 金子成彦

    第20回動力・エネルギー技術シンポジウム  (東北大学) 

    Presentation date: 2015.06

  • 非常時を考慮した分散型エネルギー供給システムの最適運用シミュレーション

    長尾浩志, 金子成彦, 山崎由大

    第20回動力・エネルギー技術シンポジウム  (東北大学) 

    Presentation date: 2015.06

  • ジェット騒音能動制御のためのミキシングデバイス

    沢田恭兵, 佐藤寛太, 生沼秀司, 長井健一郎, 石井達哉, 金子成彦

    日本航空宇宙学会第55回航空原動機・宇宙推進講演会  (富山国際会議場) 

    Presentation date: 2015.03

  • SIP革新的燃焼技術制御チームの活動紹介

    金子成彦

    システム制御情報学会,第58回自動制御連合講演会 

    Presentation date: 2015

  • モデルベースド制御を目指したディーゼルエンジンのモデリング

    池村亮祐, 山崎由大, 金子成彦

    システム制御情報学会,第58回自動制御連合講演会(2015) 

    Presentation date: 2015

  • 入眠予兆現象捕捉法の研究

    坂上聡, 金子 成彦

    日本機械学会 Dynamics and Design Conference 2015 

    Presentation date: 2015

  • 配管を考慮したガスタービン燃焼器内で発生する燃焼振動

    町田 陸, 上道 茜, 金子 成彦

    日本機械学会 Dynamics and Design Conference 2015 

    Presentation date: 2015

  • 使用済み燃料ラックの運動モデルの構築

    高居 明弘, 金子 成彦

    日本機械学会 Dynamics and Design Conference 2015 

    Presentation date: 2015

  • 作動流体の圧縮性を考慮したターボポンプで発生する軸方向振動の運動モデルの構築

    大西 樹, 金子 成彦

    日本機械学会 Dynamics and Design Conference 2015 

    Presentation date: 2015

  • ばね要素を積層したシートの振動特性

    朝居輝三, 小島重行, 小倉由美, 藤田悦則, 金子成彦

    第46回日本人間工学会中国・四国支部大会  (岡山県立大学) 

    Presentation date: 2014.12

  • 体表脈波を用いたあくびの捕捉法に関する研究

    山本献造, 小島重行, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第46回日本人間工学会中国・四国支部大会  (岡山県立大学) 

    Presentation date: 2014.12

  • 体表脈波を用いた睡眠時無呼吸症候群患者の生体リズムに関する解析事例

    中島可南子, 延廣良香, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第46回日本人間工学会中国・四国支部大会  (岡山県立大学) 

    Presentation date: 2014.12

  • 長時間着座のための姿勢保持法の提案

    平本裕太, 延廣良香, 小倉由美, 藤田悦則, 辻敏夫, 金子成彦, 長町三生

    第46回日本人間工学会中国・四国支部大会  (岡山県立大学) 

    Presentation date: 2014.12

  • 低騒音パワーシートの開発と異音定量化手法の提案

    内山隆夫, 梅崎幾世紀, 小倉由美, 藤田悦則, 金子成彦

    第46回日本人間工学会中国・四国支部大会  (岡山県立大学) 

    Presentation date: 2014.12

  • 体表脈波を用いたドライバーの体調推定法

    堀川正博, 内川竜一, 小倉由美, 藤田悦則, 金子成彦

    第46回日本人間工学会中国・四国支部大会  (岡山県立大学) 

    Presentation date: 2014.12

  • 音響入力によるジェット騒音低減の試み

    沢田恭兵, 榎本俊治, 生沼秀司, 長井健一郎, 石井達哉, 金子成彦

    第34回流力騒音シンポジウム  (東京大学工学部) 

    Presentation date: 2014.12

  • 回転対向流双子火炎におけるプロパン空気超過濃燃焼

    上道茜, 山崎由大, 金子成彦

    第52回燃焼シンポジウム  (岡山コンベンションセンター) 

    Presentation date: 2014.12

  • デュアルフューエルエンジンにおけるバイオマス熱分解ガスの燃焼特性

    宮内健太, 藤原直人, 山崎由大, 金子成彦

    第52回燃焼シンポジウム  (岡山) 

    Presentation date: 2014.12

  • ディーゼル燃焼の簡易ダイナミクスモデル:第 2 報:多段噴射( 2 段噴射)モードへ の拡張

    清水文也, 保田一馬, 山崎由大, 金子成彦, 中村佑介, 飯田訓正, 長谷川 亮

    第25回 内燃機関シンポジウム  (産総研つくば中央第1共用講堂) 

    Presentation date: 2014.11

  • 模型エンジンを利用したマイクロジェットデバイスの騒音低減性能評価に関する研究

    福本 將太, 大宮 修一郎, 和田 恵, 生沼 秀司, 長井 健一郎, 石井 達哉, 金子 成彦

    第42回日本ガスタービン学会定期講演会  (熊本国際交流会館) 

    Presentation date: 2014.10

  • 人体ダミーを目指した柔軟構造物の振動特性解析

    見並 克俊, 金子 成彦, 山崎 由大, 天田 直弥

    Dynamics and Design Conference 2014(D&D2014)  (上智大学) 

    Presentation date: 2014.08

  • 使用済み燃料ラックの運動モデルの構築

    白井 宏尚, 金子 成彦, 山崎 由大

    Dynamics and Design Conference 2014(D&D2014)  (上智大学) 

    Presentation date: 2014.08

  • マイクロガスタービン燃焼器内で発生する燃焼振動の特性に関する研究

    町田 陸, ファン ホーソン, 大野 卓也, 北村 遼平, 上道 茜, 金子 成彦

    Dynamics and Design Conference 2014(D&D2014)  (上智大学) 

    Presentation date: 2014.08

  • バイオマス熱分解ガスを利用したDual Fuelエンジン

    宮内健太, 藤原直人, 山崎由大, 金子成彦

    第19回動力エネルギー技術シンポジウム  (福井) 

    Presentation date: 2014.06

  • 自然エネルギー出力変動抑制のための分散型電源導入法の研究

    山口裕吾, 町田陸, 金子成彦, 山崎由大

    第19回動力エネルギー技術シンポジウム  (福井) 

    Presentation date: 2014.06

  • 新しい人材育成プログラムを活用したものづくり

    金子成彦  [Invited]

    新しい人材育成プログラムを活用したものづくりセミナー 

    Presentation date: 2014.06

    Event date:
    2014.06
     
     
  • 技術者教育におけるPELの活用

    金子成彦  [Invited]

    第4回宇部高専・徳山高専合同研修会 

    Presentation date: 2014.03

    Event date:
    2014.03
     
     
  • 高音圧加振によるジェット騒音低減の試み

    大宮修一郎, 石井達哉, 生沼秀司, 和田恵, 福本將太, 金子成彦

    J0910106日本機械学会年次大会  (東京電機大学) 

    Presentation date: 2014

  • 動脈網モデルによる脈波伝播シミュレーション

    斉藤聡平, 金子成彦

    J0910204日本機械学会年次大会  (東京電機大学) 

    Presentation date: 2014

  • 予混合気の不均質性を考慮したHCCI燃焼簡易モデル

    上杉康登, 山崎由大, 金子成彦, 疋田孝幸, 津村雄一郎, 水野沙織

    G0710104日本機械学会年次大会  (東京電機大学) 

    Presentation date: 2014

  • HCCIエンジンの簡易ダイナミクスモデル

    Ma Qiong, 山崎由大, 金子成彦, 疋田孝幸, 津村雄一郎, 水野沙織

    G0710103日本機械学会年次大会  (東京電機大学) 

    Presentation date: 2014

  • HCCIエンジンの圧力上昇率およびサイクル変動の予測モデルの検討

    馬橋奏太, 山崎由大, 金子成彦, 疋田孝幸, 津村雄一郎, 水野沙織

    G0710102日本機械学会年次大会  (東京電機大学) 

    Presentation date: 2014

  • 気液セパレータに用いられる水平円筒容器内で発生するスロッシング

    酒井英充, 金子成彦

    J0910203日本機械学会年次大会  (東京電機大学) 

    Presentation date: 2014

  • 体表脈波の時系列波形を用いた覚醒状態と睡眠状態の判別法

    山本献造, 内山竜一, 堀川正博, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第46回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2013.12

  • 生体リズムの乱れが体表脈波に与える影響

    堀川正博, 内山竜一, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第46回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2013.12

  • 3Dネットの組織別共鳴に関する実験的検討

    青井幸佑, 前田慎一郎, 小倉由美, 藤田悦則, 金子成彦

    第46回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2013.12

  • 交通事故を起こしやすい人の状態に関する一考察

    内川竜一, 堀川正博, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第46回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2013.12

  • 鞭打ち傷害低減シートフレーム構造の開発

    西田篤史, 中村実, 桑野竜次, 杉本栄治, 小倉由美, 藤田悦則, 金子成彦

    第46回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2013.12

  • 電動パワーユニットの異音の定量化および評価

    内山隆夫, 我田茂樹, 小島重行, 小倉由美, 藤田悦則, 金子成彦

    第46回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2013.12

  • 心音情報を用いた体表脈波(APW)検出

    前田慎一郎, 青井幸佑, 小倉由美, 藤田悦則, 金子成彦, 吉栖正生

    第46回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2013.12

  • 共鳴を利用した背部体幹直接音センシングシステムの開発

    小島重行, 前田慎一郎, 青井幸佑, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 辻敏夫, 金子成彦, 吉栖正生

    第46回日本人間工学会中国・四国支部大会  (サテライトキャンパスひろしま) 

    Presentation date: 2013.12

  • ディーゼル燃焼の簡易ダイナミクスモデル

    保田一馬, 中村裕介, 山崎 由大, 金子成彦, 飯田訓正, 長谷川亮

    第 24 回 内燃機関シンポジウム  (神戸大学) 

    Presentation date: 2013.11

  • 小型ジェットエンジンを利用した加熱ジェットの騒音及び空力計測

    大宮修一郎, 酒井英充, 和田恵, 生沼秀司, 石井達哉, 金子成彦

    第41回日本ガスタービン学会定期講演会  (沖縄産業支援センター(那覇)) 

    Presentation date: 2013.10

  • 遺伝的アルゴリズムによる自然エネルギー平準化システム内の分散電源の最適化

    町田 陸, 山崎由大, 金子成彦

    日本機械学会2013年度年次大会  (岡山大学) 

    Presentation date: 2013.09

  • 変動抑制に利用するガスエンジンの当量比可変制御

    清水文也, 山崎由大, 金子成彦

    日本機械学会2013年度年次大会  (岡山大学) 

    Presentation date: 2013.09

  • 変動抑制に利用するガスエンジンの回転数可変制御

    荒川大輝, 山崎由大, 金子成彦

    日本機械学会2013年度年次大会  (岡山大学) 

    Presentation date: 2013.09

  • バランスピストンの動特性に関する研究

    杉山敬幸, 金子成彦

    Dynamics and Design Conference 2013(D&D2013)  (九州産業大学) 

    Presentation date: 2013.09

  • 水平円筒容器内でのスロッシング現象および多孔板による減衰効果

    鈴木勇人, 酒井英充, 金子成彦

    Dynamics and Design Conference 2013(D&D2013)  (九州産業大学) 

    Presentation date: 2013.09

  • 新しいモデルを用いたスラスト軸受用可撓バンプフォイルの空力弾性挙動

    Abdelrasoul M.GAD, 金子成彦

    Dynamics and Design Conference 2013(D&D2013)  (九州産業大学) 

    Presentation date: 2013.09

  • 理系グローバル人材を育成するために必要な教育の現状と課題―SSHからGCOEまでの教育に関与した経験から

    金子成彦  [Invited]

    神奈川県立厚木高等学校講演 

    Presentation date: 2013.09

    Event date:
    2013.09
     
     
  • 日本機械学会東日本大震災調査・提言分科会活動報告

    金子成彦  [Invited]

    電気学会平成25年電力・エネルギー部門大会 

    Presentation date: 2013.08

    Event date:
    2013.08
     
     
  • 日本近代工学の祖山尾庸三と東京大学工学部

    金子成彦  [Invited]

    山口七夕会総会 

    Presentation date: 2013.07

    Event date:
    2013.07
     
     
  • ハルトマンジェネレータの基礎実験

    大宮修一郎, 中村聡, 和田恵, 石井達哉, 石川仁, 金子成彦

    日本音響学会2103年春季研究発表会  (東京工科大学八王子キャンパス) 

    Presentation date: 2013.03

  • 状態変化に伴う背部体表脈波と指尖容積脈波の超低周波成分の比較

    延廣良香, 藤田悦則, 小倉由美, 村田幸治, 亀井勉, 辻敏夫, 金子成彦, 吉栖正生

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • 体表脈波を用いた長距離運転手の業務管理ソフトの開発

    落合直輝, 前田慎一郎, 内川竜一, 小島重行, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • 1操作で最適なドライビングポジションへ調整可能なスライド連動リフト機構の提案

    朝居輝三, 西本真司, 小倉由美, 藤田悦則, 金子成彦

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • 体表脈波の超低周波数成分の評価による飲酒状態の推定

    山本献造, 内川竜一, 加藤貴士, 小倉由美, 藤田悦則, 金子成彦, 吉栖正生

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • 体表脈波と心音・指尖容積脈波との相関関係に関する研究

    小島重行, 藤田悦則, 小倉由美, 村田幸治, 亀井勉, 辻敏夫, 金子成彦, 吉栖正生

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • 片振り子運動を用いた救急車用防振架台の乗り心地改善

    有田優紀, 藤田悦則, 小倉由美, 川崎誠司, 内川竜一, 小島重行, 榎園正人, 金子成彦

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • CFRPと鉄系を用いたフレーム構造での自動車用シートの開発

    巻田聡一, 川崎誠司, 小島重行, 小倉由美, 藤田悦則, 金子成彦

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • 電動パワーユニットの異音評価の定量化に向けた基礎研究

    内山隆夫, 藤田悦則, 小倉由美, 我田茂樹, 小島重行, 金子成彦

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • 磁気ばねによる除振機構のフリクション低減に関する研究

    桑田勝義, 大下裕樹, 小島重行, 内山隆夫, 小倉由美, 藤田悦則, 榎園正人, 金子成彦

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • パワーユニットの異音評価に関する実験的研究

    我田茂樹, 小島重行, 内山隆夫, 小倉由美, 藤田悦則, 金子成彦

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • APW(体表脈波)の超低周波数成分を用いた運転中の自覚眠気の検出に関する研究

    内川竜一, 延廣良香, 前田慎一郎, 小倉由美, 藤田悦則, 金子成彦, 吉栖正生

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • 心拍数変動変化の収束・発散を用いた状態推定法の開発

    小田宇大, 延廣良香, 前田慎一郎, 小倉由美, 藤田悦則, 金子成彦, 吉栖正生

    第45回日本人間工学会中国・四国支部大会  (川崎医療福祉大学) 

    Presentation date: 2012.12

  • クランク軸瞬時トルクを用いたバイオマスガスエンジン制御

    山崎由大, 津田健嗣, 金子成彦

    Dynamics and Design Conference 2012(D&D2012)  (横浜) 

    Presentation date: 2012

  • 自然エネルギーの変動抑制に利用するガスエンジンの排気特性とコスト評価

    見並克俊, 山崎由大, 金子成彦

    第17回動力エネルギー技術シンポジウム  (福岡) 

    Presentation date: 2012

  • 自然エネルギーの変動抑制に用いるガスエンジンのコスト評価と運転手法

    見並克俊, 牛島宏太, 山崎由大, 金子成彦, 進士誉夫, 緒方隆雄

    電気学会電力・エネルギー部門大会  (北海道) 

    Presentation date: 2012

  • 自然エネルギーの変動抑制に適したガスエンジン運転手法

    牛島宏太, 見並克俊, 野口雄平, 山崎由大, 金子成彦

    日本機械学会年次大会  (石川) 

    Presentation date: 2012

  • 予混合気の不均質性がHCCIエンジンの振動騒音へ及ぼす影響

    藤原慎之介, 山崎由大, 金子 成彦

    日本機械学会年次大会  (石川) 

    Presentation date: 2012

  • バイオマス利用Dual Fuel エンジンの着火燃焼特性

    藤原直人, 野口雄平, 山崎由大, 金子成彦

    日本機械学会年次大会  (石川) 

    Presentation date: 2012

  • バイオマスガスを用いたHCCIエンジンにおけるイオン電流計測

    新井太一, 山崎由大, 田浦康弘, 金子成彦

    第22回内燃機関シンポジウム  (東京) 

    Presentation date: 2011.11

  • 体表脈波を用いた自律神経系指標による飲酒検知法

    小島重行, 内川竜一, 藤田悦則, 小倉由美, 村田幸治, 亀井勉, 辻敏夫, 金子成彦

    日本人間工学会中国・四国支部、九州・沖縄支部合同開催支部大会  (下関市生涯学習プラザ) 

    Presentation date: 2011.11

  • 4象限マップを用いた体調・睡眠状態の見える化手法

    向井美紀, 内川竜一, 藤田悦則, 小倉由美, 吉栖正生, 金子成彦

    日本人間工学会中国・四国支部、九州・沖縄支部合同開催支部大会  (下関市生涯学習プラザ) 

    Presentation date: 2011.11

  • 自律神経系の反応を用いた睡眠状態への遷移現象の同定

    延廣良香, 前田慎一郎, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 辻敏夫, 金子成彦, 吉栖正生

    日本人間工学会中国・四国支部、九州・沖縄支部合同開催支部大会  (下関市生涯学習プラザ) 

    Presentation date: 2011.11

  • 警告音声に関する実験的研究

    我田茂樹, 落合直輝, 前田慎一郎, 青井幸佑, 小倉由美, 藤田悦則, 上野義雪, 金子成彦

    日本人間工学会中国・四国支部、九州・沖縄支部合同開催支部大会  (下関市生涯学習プラザ) 

    Presentation date: 2011.11

  • トラック運転手用体表脈波計測装置の開発

    前田慎一郎, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 吉栖正生, 金子成彦

    日本人間工学会中国・四国支部、九州・沖縄支部合同開催支部大会  (下関市生涯学習プラザ) 

    Presentation date: 2011.11

  • 高齢者の特性を考慮した自動車用シートの開発

    田村紘一, 内川竜一, 延廣良香, 小倉由美, 藤田悦則, 辻敏夫, 金子成彦

    日本人間工学会中国・四国支部、九州・沖縄支部合同開催支部大会  (下関市生涯学習プラザ) 

    Presentation date: 2011.11

  • 体表脈波を用いたトラック運転手の体調推定法

    落合直輝, 延廣良香, 内川竜一, 小島重行, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    日本人間工学会中国・四国支部、九州・沖縄支部合同開催支部大会  (下関市生涯学習プラザ) 

    Presentation date: 2011.11

  • 体表脈波を用いた飲酒の有無に関する実験的研究

    内川竜一, 向井美紀, 小島重行, 小倉由美, 藤田悦則, 村田幸治, 金子成彦

    日本人間工学会中国・四国支部、九州・沖縄支部合同開催支部大会  (下関市生涯学習プラザ) 

    Presentation date: 2011.11

  • 人間特性に基づく姿勢支持を考慮した自動車用シートの開発

    内川竜一, 鈴木崇, 竹内良敬, 杉本栄治, 小倉由美, 藤田悦則, 上野義雪, 金子成彦

    日本人間工学会中国・四国支部、九州・沖縄支部合同開催支部大会  (下関市生涯学習プラザ) 

    Presentation date: 2011.11

  • 磁気ばねの非線形ばね特性を利用した除振装置の開発

    桑田勝義, 木下裕樹, 小島重行, 小倉由美, 藤田悦則, 榎園正人, 金子成彦

    日本人間工学会中国・四国支部、九州・沖縄支部合同開催支部大会  (下関市生涯学習プラザ) 

    Presentation date: 2011.11

  • Prediction of Static and Dynamic Performance and Thermohydrodynamic Analysis of Gas Foil Bearings

    FENG, K, KANEKO, S, HOUJOH, H

    第17回日本IFToMM会議シンポジウム講演  (東京工業大学) 

    Presentation date: 2011.07

  • ガスエンジンダイナミクスモデルによる太陽光発電の出力変動抑制予測

    野口雄平, 小林大悟, 山崎由大, 金子成彦

    日本機械学会第16回動力・エネルギー技術シンポジウム  (大阪府吹田市関西大学) 

    Presentation date: 2011.06

  • ガスエンジンによる太陽光発電の変動抑制

    小林大悟, 山崎由大, 金子成彦

    電気学会全国大会 

    Presentation date: 2011.03

  • HCCIエンジンによる木質系バイオマスガスと都市ガスの混焼利用(燃料組成の影響)

    山崎由大, 篠田治人, 金子成彦

    第16回動力エネルギー技術シンポジウム  (大阪) 

    Presentation date: 2011

  • バイオマスガスの組成がバーナー火炎のイオン電流に及ぼす影響

    新井太一, 山崎由大, 金子成彦

    日本機械学会年次大会  (東京) 

    Presentation date: 2011

  • ターボポンプで発生する軸方向旋回すきま流励起振動

    富永裕太, 金子成彦, 杉山敬幸, 都丸裕司

    日本機械学会D&D2011  (高知工科大学) 

    Presentation date: 2011

  • 動脈網モデルによる脈波伝播シミュレーション

    河井裕介, 金子成彦, 保田一馬

    日本機械学会D&D2011  (高知工科大学) 

    Presentation date: 2011

  • 自然エネルギー電源の変動変動抑制におけるガスエンジンの利用

    小林大悟, 野口雄平, 山崎由大, 金子成彦, 牛島宏太

    日本機械学会D&D2011  (高知工科大学) 

    Presentation date: 2011

  • 振り子運動を利用した救急車用防振架台の開発

    桑田勝義, 大下裕樹, 小島重行, 小倉由美, 藤田悦則, 榎園正人, 上野義雪, 金子成彦

    第43回日本人間工学会中国・四国支部大会  (広島大学医学部) 

    Presentation date: 2010.10

  • 自動車用座席の快適性能要件に関する実験的研究

    我田茂樹, 内川竜一, 小島重行, 小倉由美, 藤田悦則, 上野義雪, 辻敏夫, 金子成彦

    第43回日本人間工学会中国・四国支部大会  (広島大学医学部) 

    Presentation date: 2010.10

  • 座面スライド機構によるリラックス姿勢の実現の提案

    朝居輝三, 内川竜一, 小島重行, 坂本豊, 藤田悦則, 水野宏文, 上野義雪, 金子成彦

    第43回日本人間工学会中国・四国支部大会  (広島大学医学部) 

    Presentation date: 2010.10

  • 疲労度モニタリングシステムを有する自動車用シートの開発

    小島重行, 内川竜一, 小倉由美, 藤田悦則, 辻敏夫, 金子成彦

    第43回日本人間工学会中国・四国支部大会  (広島大学医学部) 

    Presentation date: 2010.10

  • 自動車用座席における頭部左右加速度を低減する姿勢支持法

    内川竜一, 小倉由美, 藤田悦則, 上野義雪, 金子成彦

    第43回日本人間工学会中国・四国支部大会  (広島大学医学部) 

    Presentation date: 2010.10

  • 心・循環系指標を用いた長距離運転者のための居眠り警告・疲労検知システムの開発

    落合直輝, 藤田悦則, 小倉由美, 延廣良香, 村田幸治, 亀井勉, 上野義雪, 辻敏夫, 金子成彦, 吉栖正生

    第43回日本人間工学会中国・四国支部大会  (広島大学医学部) 

    Presentation date: 2010.10

  • 心部揺動波の超低周波変動を用いた状態推定法

    延廣良香, 前田慎一郎, 落合直輝, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 辻敏夫, 金子成彦, 吉栖正夫

    第43回日本人間工学会中国・四国支部大会  (広島大学医学部) 

    Presentation date: 2010.10

  • 心・循環系の超低周波変動推定アルゴリズム

    前田慎一郎, 藤田悦則, 小倉由美, 延廣良香, 金子成彦, 吉栖正生

    第43回日本人間工学会中国・四国支部大会  (広島大学医学部) 

    Presentation date: 2010.10

  • 片振り子運動を利用した救急車用防振架台の振動特性

    桑田勝義, 大下裕樹, 小倉由美, 藤田悦則, 榎園正人, 上野義雪, 金子成彦

    設計工学会秋季大会  (高知工科大学) 

    Presentation date: 2010.10

  • 非拘束による生体信号センシングのための自動車用シートの特性

    小島重行, 田村紘一, 内川竜一, 小倉由美, 藤田悦則, 辻敏夫, 金子成彦

    設計工学会秋季大会  (高知工科大学) 

    Presentation date: 2010.10

  • 加速度をパッシブ制御し衝突安全と快適性を向上させる軽量薄型自動車用シートの開発

    田村紘一, 川崎誠司, 巻田聡一, 延廣良香, 小倉由美, 藤田悦則, 金子成彦

    設計工学会秋季大会  (高知工科大学) 

    Presentation date: 2010.10

  • RR間隔と眠気の強さの相関関係を利用した眠気推定手法の考案

    福島怜, 金子成彦

    生活生命支援医療福祉工学系学会連合大会2010  (大阪大学) 

    Presentation date: 2010.09

  • バイオガス対応マイクロガスタービン用燃焼器における燃焼振動

    山崎大輔, 金子成彦, 山崎由大

    日本機械学会機械力学・計測制御部門,D&D2010  (同志社大学京田辺キャンパス) 

    Presentation date: 2010.09

  • 遠心式ターボポンプの羽根車の軸方向振動特性

    冨永裕太, 金子成彦

    日本機械学会2010年度年次大会  (名古屋工業大学) 

    Presentation date: 2010.09

  • バイオマスガスと都市ガス13Aを用いた予混合圧縮着火エンジンに関する研究(不均質性の影響)

    篠田治人, 山崎由大, 水野沙織, 金子成彦

    第21回内燃機関シンポジウム  (岡山) 

    Presentation date: 2010

  • 都市ガス13A-バイオマスガス混合燃料によるHCCI エンジンの運転

    篠田治人, 水野沙織, 山崎由大, 金子成彦

    日本機械学会年次大会  (名古屋) 

    Presentation date: 2010

  • 都市ガス・バイオガス混焼エンジンの運転制御システム

    菅野雅信, 鈴木良孝, 山崎由大, 金子成彦

    第15回動力エネルギー技術シンポジウム  (東京) 

    Presentation date: 2010

  • HCCIエンジンにおけるバイオマス-都市ガス混合燃料の着火と燃焼

    水野沙織, 山崎由大, 金子成彦

    日本機械学会関東支部講演会  (東京) 

    Presentation date: 2010

  • 生体信号を用いた飲酒検知に関する研究

    小島重行, 前田慎一郎, 落合直輝, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 辻敏夫, 金子成彦, 吉栖正生

    第42回日本人間工学会中国・四国支部大会  (岡山大学工学部) 

    Presentation date: 2009.11

  • 非拘束センサを用いた長距離運転時のドライバ状態推定の開発

    我田茂樹, 落合直輝, 前田慎一郎, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 上野義雪, 辻敏夫, 吉栖正生, 金子成彦

    第42回日本人間工学会中国・四国支部大会  (岡山大学工学部) 

    Presentation date: 2009.11

  • エアパックセンサーを用いた疲労判定アルゴリズムの開発

    延廣良香, 前田慎一郎, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 辻敏夫, 金子成彦, 吉栖正生

    第42回日本人間工学会中国・四国支部大会  (岡山大学工学部) 

    Presentation date: 2009.11

  • 磁気ばね・磁気ダンパを利用した除振装置の開発

    桑田勝義, 大下裕樹, 小倉由美, 藤田悦則, 金子成彦

    日本設計工学会平成21年度秋季大会研究発表講演会  (広島国際大学国際教育センター) 

    Presentation date: 2009.10

  • 低カロリーガス対応マイクロガスタービンの開発

    金子成彦

    第37回ガスタービン定期講演会  (山口市) 

    Presentation date: 2009.10

  • バイオマスガスの燃料組成がHCCIエンジンの燃焼特性に与える影響

    田浦康弘, 山崎由大, 金子成彦

    日本機械学会年次大会  (岩手) 

    Presentation date: 2009.09

  • 動特性モデルに基づく2軸マイクロガスタービン発電システムの回転数制御

    金子成彦, 飯島一樹, 渡邉辰郎, 山崎由大

    日本機械学会年次大会  (岩手) 

    Presentation date: 2009.09

  • ガスエンジンのダイナミックモデル

    菅野雅信, 赤石誉幸, 山崎由大, 金子成彦

    日本機械学会第11回「運動と振動の制御」シンポジウム  (アクロス福岡) 

    Presentation date: 2009.09

  • 燃料多様性を有する小型ガスエンジンシステムの開発

    山崎由大, 西澤幸紘, 金子成彦

    第20回内燃機関シンポジウム  (早稲田大学) 

    Presentation date: 2009.09

  • 脈波時系列解析による睡眠現象解析アルゴリズムの開発

    落合直輝, 延廣良香, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 上野義雪, 辻敏夫, 金子成彦, 吉栖正夫

    日本機械学会第11回「運動と振動の制御」シンポジウム  (アクロス福岡) 

    Presentation date: 2009.09

  • マットレスの適合性評価のための生理学的指標の開発

    延廣良香, 落合直輝, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 上野義雪, 辻敏夫, 金子成彦, 吉栖正夫

    日本機械学会第11回「運動と振動の制御」シンポジウム  (アクロス福岡) 

    Presentation date: 2009.09

  • 非拘束センサによる飲酒検知技術の開発

    小島重行, 前田慎一郎, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 辻敏夫, 金子成彦, 吉栖正夫

    日本機械学会第11回「運動と振動の制御」シンポジウム  (アクロス福岡) 

    Presentation date: 2009.09

  • 吉栖正夫、非拘束センサによるドライバの状態推定技術の開発

    前田慎一郎, 小島重行, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦

    日本機械学会第11回「運動と振動の制御」シンポジウム  (アクロス福岡) 

    Presentation date: 2009.09

  • マットレス特性と人との適合性の検証

    延廣良香, 落合直輝, 小倉由美, 藤田悦則, 岩村憲樹, 村田幸治, 亀井勉, 上野義雪, 辻敏夫, 金子成彦

    日本人間工学会第50回大会  (産業技術総合研究所 つくば中央) 

    Presentation date: 2009.06

  • 生理指標を用いたマットレスの開発

    落合直輝, 延廣良香, 小倉由美, 藤田悦則, 岩村憲樹, 村田幸治, 亀井勉, 上野義雪, 辻敏夫, 金子成彦

    日本人間工学会第50回大会  (産業技術総合研究所 つくば中央) 

    Presentation date: 2009.06

  • シートに取り付けた脈波計測用エアパックセンサーの設置位置と精度の検討

    金子成彦, 馬場智紹

    日本機械学会福祉工学シンポジウム2009  (高知工科大学) 

    Presentation date: 2009

  • 脈波波形に基づく動脈硬化指標の力学的評価

    河井裕介, 程島雄造, 金子成彦

    日本機械学会D&D2009  (北海道大学) 

    Presentation date: 2009

  • バンプ型フォイル軸受の静特性と安定性に対するフォイル設計変数の影響

    馮 凱, 金子成彦

    日本機械学会D&D2009  (北海道大学) 

    Presentation date: 2009

  • マイクログリッドにおけるガスエンジンの動特性

    菅野雅信, 赤石誉幸, 山崎由大, 金子成彦

    日本機械学会第14回動力エネルギー技術シンポジウム  (筑波大学) 

    Presentation date: 2009

  • 入眠予兆センサシステムの開発(14-20095292)

    前田慎一郎, 小島重行, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦, 吉栖正生

    自動車技術会2009年春季大会  (パシフィコ横浜) 

    Presentation date: 2009

  • エアパックセンサーを用いた飲酒検知システムに関する研究(10-20095355)

    小島重行, 前田慎一郎, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 辻敏夫, 金子成彦, 吉栖正生

    自動車技術会2009年春季大会  (パシフィコ横浜) 

    Presentation date: 2009

  • 低カロリーガス対応小型マイクロガスタービン燃焼器内でのフレームレス燃焼の可視化

    平松昌人, 林茂, 金子成彦, 山崎由大

    日本機械学会2008年度年次大会  (横浜国立大学) 

    Presentation date: 2008.08

  • バンプ型フォイル軸受性能の解析方法:リンク・スプリング計算モデル

    馮 凱, 金子成彦

    日本機械学会2008年度年次大会  (横浜国立大学) 

    Presentation date: 2008.08

  • 非侵襲センシングシステムによる飲酒状態判別に関する研究

    小島重行, 前田慎一郎, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 辻敏夫, 上野義雪, 金子成彦

    2008年人間工学会中国四国支部大会 

    Presentation date: 2008

  • 3Dネットを用いた自転車用サドルカバーの開発

    池田三奈子, 小倉由美, 落合直輝, 藤田悦則, 村田幸治, 亀井勉, 垰田和史, 上野義雪, 辻敏夫, 金子成彦

    2008年人間工学会中国四国支部大会 

    Presentation date: 2008

  • 入眠検知用センサシステムの開発

    前田慎一郎, 小島重行, 小倉由美, 藤田悦則, 金子成彦, 村田幸治, 亀井勉

    2008年人間工学会中国四国支部大会 

    Presentation date: 2008

  • 生理指標に基づいた睡眠の質を改善するマットレスの開発

    落合直輝, 小倉由美, 藤田悦則, 岩村憲樹, 村田幸治, 亀井勉, 上野義雪, 辻敏夫, 金子成彦

    2008年人間工学会中国四国支部大会 

    Presentation date: 2008

  • シート組み込み型エアパックセンサシステムの開発

    小島重行, 村田幸治, 藤田悦則, 前田慎一郎, 小倉由美, 亀井勉, 辻敏夫, 三好竜介, 金子成彦

    SICE第23回生体・生理工学シンポジウム 

    Presentation date: 2008

  • 遠心圧縮機による容器内の圧力脈動に関する研究

    林慈朗, 金子成彦

    日本機械学会機械力学・計測制御部門D&D2008 

    Presentation date: 2008

  • KdV方程式に基づく弾性管内脈動伝播解析

    程島雄造, チャンイエ, 金子成彦

    日本機械学会機械力学・計測制御部門D&D2008 

    Presentation date: 2008

  • 覚醒レベルと居眠り検知システムの開発

    前田慎一郎, 藤田悦則, 小倉由美, 小島重行, 金子成彦, 苗鉄軍, 東田外史, 村田幸治, 亀井勉, 榎園正人

    日本機械学会機械力学・計測制御部門D&D2008 

    Presentation date: 2008

  • 生体信号を用いた飲酒・非飲酒状態検知に関する研究

    小島重行, 前田慎一郎, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 金子成彦

    日本機械学会機械力学・計測制御部門D&D2008 

    Presentation date: 2008

  • シートに取り付けた脈波計測用エアパックセンサーのモデリング

    金子成彦, 三好竜介

    日本機械学会福祉工学シンポジウム2008講演会  (山口大学工学部) 

    Presentation date: 2008

  • 自動車用エンジン転用によるバイオマスガスエンジンの開発

    西澤幸紘, 山崎大輔, 永田裕樹, 山崎由大, 金子成彦

    第13回動力エネルギー技術シンポジウム  (北海道大学) 

    Presentation date: 2008

  • 二段燃焼を用いたマイクロガスタービン発電システムのバイオマスガスによる運転

    飯島一樹, 岡田幸順, 金子成彦, 山崎由大

    第13回動力エネルギー技術シンポジウム  (北海道大学) 

    Presentation date: 2008

  • HCCIエンジンにおけるバイオマスガスの着火燃焼特性

    菅野雅信, 山崎由大, 西澤幸紘, 永田裕樹, 金子成彦

    日本機械学会年次大会  (横浜) 

    Presentation date: 2008

  • 自動車用ガソリンエンジンを転用した小型バイオマスガスエンジンの開発

    山崎大輔, 山崎由大, 西澤幸紘, 永田裕樹, 金子成彦

    日本機械学会年次大会  (横浜) 

    Presentation date: 2008

  • 自動車用ガソリンエンジンを転用した小型バイオマスガスエンジンによる発電試験

    山崎由大, 西澤幸紘, 永田裕樹, 山崎大輔, 金子成彦

    第17回日本エネルギー学会大会  (東京) 

    Presentation date: 2008

  • HCCIエンジンによるバイオマスガスの高効率利用

    山崎由大, 菅野 雅信, 西澤幸紘, 金子成彦

    第46回燃焼シンポジウム  (京都) 

    Presentation date: 2008

  • 自動車用シートに組み込んだ着座センサによる飲酒状態の検知

    落合直輝, 前田慎一郎, 小島重行, 我田茂樹, 小倉由美, 藤田悦則, 上野義雪, 金子成彦

    日本人間工学会第48回大会  (名城大学) 

    Presentation date: 2007.06

  • ガスエンジンの過渡応答特性に関する研究

    山崎 由大, 戸松 豪, 永田 裕樹, 金子 成彦

    日本機械学会関東支部第13期総会講演会  (宇都宮大学) 

    Presentation date: 2007.03

  • 動脈血管中を伝わる脈波の伝播と反射に関する研究

    常 ?, 金子成彦, 渡邉辰郎, 秋富知明

    日本機械学会関東支部第13期総会講演会  (宇都宮大学) 

    Presentation date: 2007.03

  • 配管内圧力脈動に対する遠心圧縮機の減衰特性に関する研究

    林慈朗, 金子成彦

    日本機械学会機械力学・計測制御部門,D&D2007 

    Presentation date: 2007

  • ハードディスクアクセスアームに作用する変動揚力(入射流速分布とアーム位置の影響)

    西原崇, 金子成彦, 渡邉辰郎

    日本機械学会機械力学・計測制御部門、D&D2007 

    Presentation date: 2007

  • 木質系バイオマスガスを用いた小型ガスエンジンに関する研究

    山崎由大, 永田裕樹, 西澤幸紘, 金子成彦

    第45回燃焼シンポジウム  (仙台) 

    Presentation date: 2007

  • 筒内圧力のリアルタイム解析によるバイオマスガスエンジンの運転制御

    山崎由大, 戸松豪, 永田裕樹, 金子成彦

    日本機械学会機械力学・計測制御部門,D&D2007 

    Presentation date: 2007

  • ガスエンジンの負荷追従特性に関する研究

    山崎由大, 戸松豪, 永田裕樹, 金子成彦

    日本機械学会年次大会  (大阪) 

    Presentation date: 2007

  • バイオマス対応マイクロガスタービンシステムの運転制御に関する研究

    岡田幸順, 金子智彦, 山崎由大, 金子成彦

    第12回動力エネルギー技術シンポジウム 

    Presentation date: 2007

  • ダイナミックモデルを用いたガスエンジンの動特性予測

    永田裕樹, 戸松豪, 山崎由大, 金子成彦

    第12回動力エネルギー技術シンポジウム 

    Presentation date: 2007

  • バイオマスガス対応小型ガスエンジンの開発(低カロリーガス燃料の燃焼特性)

    山崎 由大, 戸松 豪, 永田 裕樹, 金子 成彦

    燃焼工学シンポジウム、日本機械学会、第19回内燃機関シンポジウム  (東京工業大学) 

    Presentation date: 2007.01

  • 小型ガスエンジンにおけるバイオマスガスの燃焼特性

    山崎 由大, 戸松 豪, 永田 裕樹, 金子 成彦

    第44回燃焼工学シンポジウム  (広島国際会議場) 

    Presentation date: 2006.12

  • 非侵襲生体信号センシング機能を有する車両用シートの試作

    前田慎一郎, 藤田悦則, 小倉由美, 榎園正人, 金子成彦

    日本人間工学会、中国四国支部、第39回大会  (広島大学) 

    Presentation date: 2006.11

  • 非侵襲型センサによって測定された生体ゆらぎ信号の疲労と入眠予知への応用

    落合直輝, 小倉由美, 藤田悦則, 村田幸治, 亀井勉, 上野義雪, 金子成彦

    日本人間工学会、中国四国支部、第39回大会  (広島大学) 

    Presentation date: 2006.11

  • Flameless燃焼を採用した低カロリーガス対応小型燃焼器の開発―化学反応を考慮した熱流体解析による検討―

    中島良文, 山崎由大, 林茂, 金子成彦

    第34回ガスタービン定期講演会  (弘前文化センター) 

    Presentation date: 2006.10

  • 磁気ばねと磁気ダンパを用いたサスペンションシートに関する研究

    作山寛, 小島重行, 藤田悦則, 金子成彦, 榎園正人, 西山勝夫

    日本機械学会2006年度年次大会  (熊本大学) 

    Presentation date: 2006.09

  • 臀部からの生体信号のセンシングに関する研究

    前田慎一郎, 藤田悦則, 小倉由美, 金子成彦

    日本機械学会2006年度年次大会  (熊本大学) 

    Presentation date: 2006.09

  • 入眠予兆信号検出法に関する研究

    金子成彦, 佐々木洋介, 山崎由大

    日本機械学会機械力学・計測制御部門 Dynamics & Design Conference 2006  (名古屋大学) 

    Presentation date: 2006.08

  • 遠心圧縮機による配管内圧力脈動に関する研究

    林慈朗, 金子成彦

    日本機械学会機械力学・計測制御部門 Dynamics & Design Conference 2006  (名古屋大学) 

    Presentation date: 2006.08

  • 小型ガスエンジンにおける低カロリーガスの燃焼特性

    戸松豪, 藤川雅章, 山崎由大, 金子成彦

    日本機械学会第11回動力エネルギ技術シンポジウム  (東京海洋大学) 

    Presentation date: 2006.06

  • 生理学的指標を用いた入眠予兆現象の検証

    村田幸治, 亀井勉, 藤田悦則, 金子成彦

    日本人間工学会第47回大会  (大阪市立大学) 

    Presentation date: 2006.06

  • 非侵襲型生体信号センシングシートを用いた入眠予兆現象に関する研究

    落合直輝, 小倉由美, 藤田悦則, 上野義雪, 金子成彦

    日本人間工学会第47回大会  (大阪市立大学) 

    Presentation date: 2006.06

  • 低カロリー燃料対応マイクロガスタービン発電システムの構築

    中島良文, 森祐司, 金子成彦, 渡邉辰郎, 山崎由大

    第33回ガスタービン定期講演会  (伊勢観光文化会館) 

    Presentation date: 2005.09

  • 既燃ガス中に予混合気を噴射するMGT用燃焼器の開発

    足立貞雅, 岩本 厚, 山崎由大, 山田秀志, 林 茂, 金子成彦

    第33回ガスタービン定期講演会  (伊勢観光文化会館) 

    Presentation date: 2005.09

  • 安全な自動車社会の実現をテーマとした機械工学ゼミナール

    坂井良夫, 金子成彦

    平成17年度工学・工業教育研究講演会  (広島大学) 

    Presentation date: 2005.09

  • ルーツブロアを利用した低圧ガス供給系脈動対策装置

    柳沢和正, 山崎由大, 金子成彦, 渡邉辰郎

    日本機械学会機械力学・計測制御部門 Dynamics & Design Conference 2005  (朱鷺メッセ(新潟コンベンションセンター)) 

    Presentation date: 2005.08

  • 小型高速マイクロガスタービン用ラジアルフォイル軸受の性能評価

    宮野芳寛, 金子成彦, 渡邉辰郎

    日本機械学会機械力学・計測制御部門 Dynamics & Design Conference 2005  (朱鷺メッセ(新潟コンベンションセンター)) 

    Presentation date: 2005.08

  • 磁気ディスク読みとりヘッドキャリッジアームの空力特性

    金子 成彦, 西原 崇, 渡邉 辰郎

    日本機械学会2005年度 年次大会  (電気通信大学) 

    Presentation date: 2005

  • 指尖容積脈波のゆらぎを用いた疲労度評価法の開発(20055243)

    落合直輝, 藤田悦則, 小倉由美, 村田幸治, 亀井勉, 金子成彦

    自動車技術会学術講演 

    Presentation date: 2005

  • 臀部からの生体信号の計測法

    前田慎一郎, 藤田悦則, 小倉由美, 村田幸治, 亀井勉, 金子成彦

    自動車技術会学術講演 

    Presentation date: 2005

  • 筒状火炎の既燃ガス中に予混合気を噴射するMGT用2段燃焼器の試作

    岩本 厚, 金子智彦, 山田秀志, 林 茂, 金子成彦

    第32回ガスタービン定期講演会  (高知) 

    Presentation date: 2004.10

  • 低カロリーガス焚マイクロガスタービン運転制御システムの開発

    森 祐司, 金子成彦, 渡邉辰郎, 山崎由大, 疋田孝幸

    日本機械学会2004年度年次大会  (北海道大学) 

    Presentation date: 2004.09

  • マイクロガスタービン用フォイル軸受の設計へのすきま流理論の適用

    金子成彦, 北澤 進, 宮野芳寛, 渡邉辰郎

    日本機械学会年次大会  (北海道大学) 

    Presentation date: 2004.09

  • 小型高速マイクロガスタービン用ラジアルフォイル軸受特性の計算法

    金子成彦, 宮野芳寛, 北澤 進, 渡邉辰郎

    日本機械学会第9回動力エネルギ技術シンポジウム  (東京海洋大学) 

    Presentation date: 2004.06

  • サッカー練習機の製作を通じてのもの作り教育

    坂井良夫, 渡邉辰郎, 金子成彦

    平成16年度工学・工業教育研究講演会  (金沢工業大学) 

    Presentation date: 2004

  • 臀部からの生体信号の簡易計測法

    前田慎一郎, 落合直輝, 小倉由美, 榎芳美, 藤田悦則, 上野義雪, 金子成彦

    日本人間工学会、中国四国支部、第37回大会 

    Presentation date: 2004

  • 生理指標によるマットレスの簡易快適度評価法の開発

    前田慎一郎, 落合直輝, 小倉由美, 榎芳美, 藤田悦則, 上野義雪, 金子成彦

    日本人間工学会、中国四国支部、第37回大会 

    Presentation date: 2004

  • 睡眠−覚醒における入眠予兆現象に関する実験的研究

    落合直輝, 前田慎一郎, 小倉由美, 榎芳美, 藤田悦則, 上野義雪, 金子成彦

    日本人間工学会、中国四国支部、第37回大会 

    Presentation date: 2004

  • 指尖容積脈波情報を用いた着座時の疲労度と快適感の評価

    落合直輝, 前田慎一郎, 小倉由美, 榎芳美, 藤田悦則, 上野義雪, 金子成彦

    日本人間工学会、中国四国支部、第37回大会 

    Presentation date: 2004

  • マイクロガスタービン研究を通じての持続型社会へのアプローチ

    金子成彦

    日本機械学会機械力学・計測制御部門講演会、産学連携フォーラム  (東京工業大学) 

    Presentation date: 2004

  • 基本的メカニズムと大振幅振動を引き起こす自励振動

    金子成彦

    日本機械学会機械力学・計測制御部門講演会、夏の学校  (東京工業大学) 

    Presentation date: 2004

  • 脈波伝播速度の解析と血圧計への応用

    金子成彦, 中村建樹, 渡邉辰郎

    日本機械学会機械力学・計測制御部門講演会2004  (東京工業大学) 

    Presentation date: 2004

  • 磁気複合ダンパの特性解析

    金子成彦, 竹藤和弘, 渡邉辰郎, 藤田悦則

    日本機械学会機械力学・計測制御部門講演会2004  (東京工業大学) 

    Presentation date: 2004

  • バイオマスガス対応マイクロガスタービン運転監視システムの開発

    疋田孝幸, 金子成彦

    2003年度自動車技術会関東支部学術研究講演会  (日本大学理工学部駿河台校舎) 

    Presentation date: 2004

  • 流れ方向に振動する円柱の後流パターンと非定常流体力

    西原 崇, 金子成彦, 渡邉辰郎

    日本機械学会機械力学・計測制御部門講演会2003 

    Presentation date: 2003

  • マイクロコジェネレーションシステムで観測された温度変動の発生機構に関する研究

    金子成彦, 福山弦根, 渡邉辰郎

    日本機械学会機械力学・計測制御部門講演会2003 

    Presentation date: 2003

  • メカニズム解明の進展とトラブル対応技術

    金子成彦

    日本機械学会2003年次大会 

    Presentation date: 2003

  • マイクロガスタービンガス供給系配管で発生する圧力脈動とその対策に関する研究

    村井克成, 庄田成志, 金子成彦, 渡邉辰郎

    日本機械学会2003年次大会 

    Presentation date: 2003

  • 小型マイクロガスタービン用ラジアル・スラストフォイル軸受の試作

    金子成彦, 渡辺 悠, 渡邉辰郎, 北澤 進

    日本機械学会2003年次大会 

    Presentation date: 2003

  • 流れ方向に振動する円柱の流付加質量と付加減衰

    西原 崇, 金子成彦, 渡邉辰郎

    日本機械学会2003年次大会 

    Presentation date: 2003

  • マイクロガスタービンを題材とした物作り導入教育

    坂井良夫, 金子成彦

    平成15年度工学・工業教育研究講演会  (北海道大学) 

    Presentation date: 2003

  • スキルの向上をめざした大学院演習の新方式

    渡邉辰郎, 金子成彦

    平成15年度工学・工業教育研究講演会  (北海道大学) 

    Presentation date: 2003

  • マイクロコジェネレーションシステムの実測データに基づく総合熱効率評価

    金子成彦, 福山弦根, 渡邉辰郎

    日本機械学会第13回環境工学総合シンポジウム2003 

    Presentation date: 2003

  • 非線形流体力の効果を考慮に入れたマルチボディダイナミクス

    呉 小山, 金子成彦

    第52回理論応用力学講演会 

    Presentation date: 2003

  • マイクロガスタービン用オイルフリーコンプレッサの開発

    伊藤光幸, 神邊重治, 金子成彦, 酒井逸朗

    第21回エネルギー資源学会研究発表会  (大阪) 

    Presentation date: 2002.06

  • 家庭用血圧計の測定原理に関する検討

    中村建樹, 金子成彦, 渡邉辰郎

    日本機械学会第2回福祉工学シンポジウム 

    Presentation date: 2002

  • 離散はり要素を用いたすきま流れによって発生するシートのフラッタの非線形解析

    呉 小山, 金子成彦

    日本機械学会2002年次大会 

    Presentation date: 2002

  • 全自動洗濯機用高性能サスペンションダンパの開発

    原田友彦, 誉田浩樹, 藤田悦則, 渡邉辰郎, 金子成彦

    日本機械学会2002年次大会 

    Presentation date: 2002

  • 吊り棒ダンパで支持された全自動洗濯機の振動特性の解明

    金子成彦, 渡邉辰郎, 前田薫宜, 藤田悦則, 誉田浩樹, 原田友彦

    日本機械学会2002年次大会 

    Presentation date: 2002

  • 大学の研究室における設計技術伝承に関する新しい試み

    金子成彦, 渡邉辰郎

    日本機械学会2002年次大会 

    Presentation date: 2002

  • ガタのある板で支持されたU字管の振動減衰評価

    小林里紗, 金子成彦, 渡邉辰郎, 中村友道

    日本機械学会2002年次大会 

    Presentation date: 2002

  • 環状隙間流によって励起された走行弦の自励振動

    金子成彦, 尾崎雄一, 渡邉辰郎

    日本機械学会 Dynamics and Design Conference 2002 

    Presentation date: 2002

  • 機械工学ゼミとしての手作り発電機の性能測定

    坂井良夫, 渡邉辰郎, 金子成彦

    平成14年度工学・工業教育研究講演会 

    Presentation date: 2002

  • 教養学部生の動機付けを目的とした首都圏「もの作り系博物館」の利用法

    渡邉辰郎, 金子成彦

    平成14年度工学・工業教育研究講演会 

    Presentation date: 2002

  • マイクロガスタービン用空気軸受試験装置の試作

    金子成彦, 北澤進, 渡邉辰郎

    日本機械学会第8回動力・エネルギー技術シンポジウム 

    Presentation date: 2002

  • マルチボディダイナミクスによるシートのフラッタ解析

    呉 小山, 金子成彦

    日本機械学会第14回計算力学講演会  (札幌) 

    Presentation date: 2001

  • 機械力学教育へのPBLの導入

    金子成彦

    日本機械学会2001年度年次大会  (福井) 

    Presentation date: 2001

  • 円錐型流路に流れ込む旋回隙間流によって励起される弁体の自励振動

    木都孝洋, 金子成彦, 渡邉辰郎

    日本機械学会2001年度年次大会  (福井) 

    Presentation date: 2001

  • 振動モードの切替えによる斜張橋斜材ケーブルの制振方法に関する研究(パラメータの設計法)

    中野龍児, 金子成彦, 松永義憲, 片村立太

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 2001

  • すきま流れによって発生する連結剛体の空力振動(連結剛体周りの非定常流体力の計測)

    田中成彦, 金子成彦, 渡邉辰郎

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 2001

  • 血圧測定法のメカニズムに関する研究

    吉沢康弘, 金子成彦, 渡邉辰郎

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 2001

  • 単一円柱における対称渦による抗力方向自励振動の発生機構

    安川亮一, 金子成彦, 西原 崇, 渡邉辰郎

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 2001

  • PBLプログラム海外視察報告

    金子成彦, 渡邉辰郎

    平成13年度工学・工業教育研究講演会 

    Presentation date: 2001

  • マイクロガスタービンを題材としたPBLプログラム

    金子成彦, 渡邉辰郎

    平成13年度工学・工業教育研究講演会 

    Presentation date: 2001

  • PBL教育活動事例報告

    渡邉辰郎, 金子成彦

    平成13年度工学・工業教育研究講演会 

    Presentation date: 2001

  • マイクロガスタービン状態監視・制御システムの試作

    猪俣 仁, 庄田成志, 金子成彦, 渡邉辰郎

    第29回ガスタービン定期講演会 

    Presentation date: 2001

  • マイクロガスタービン供給系統における脈動現象とその対策

    庄田成志, 金子成彦, 渡邉辰郎, 猪俣 仁

    第29回ガスタービン定期講演会 

    Presentation date: 2001

  • すきま流れによって発生する多体連結剛体の空力振動(剛体支持条件、すきま幅の影響に関する検討)

    田中成彦, 金子成彦, 渡邉辰郎

    日本機械学会関東支部第7期総会講演会 

    Presentation date: 2001

  • PBLを通じての設計教育

    金子成彦

    日本機械学会関東支部第7期総会講演会講 

    Presentation date: 2001

  • すき間流れによって発生する連結剛体の空力振動(剛体端部の形状、支持条件の影響に関する検討)

    田中成彦, 平田崇, 金子成彦, 渡辺辰郎

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 2000

  • 流れにさらされた円柱状構造物に作用する抗力方向付加流体力の測定

    西原崇, 安川亮一, 金子成彦, 渡辺辰郎

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 2000

  • 振れ回り運動をする回転円環内流体の挙動実験

    笠原雅之, 金子成彦, 大下和弘, 石井博

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 2000

  • 振れ回り運動をする回転円環内流体のスロッシング挙動解析

    笠原雅之, 金子成彦, 石井博

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 2000

  • 振動モードの切替えによる斜張橋斜材ケーブルの制振

    中野龍児, 金子成彦, 松永義憲, 片村立太

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 2000

  • 血管を模擬したコラプシブルチューブの自励振動に関する研究

    金子成彦, 吉沢康弘, 福留寛樹

    日本機械学会2000年次大会 

    Presentation date: 2000

  • 静止2円柱まわりのフローパターンと空気力特性に関する考察

    尾崎雄一, 吉沢康弘, 中野龍児, 渡邉辰郎, 金子成彦

    日本機械学会2000年次大会 

    Presentation date: 2000

  • スムーストレッドタイヤに発生する振動及び騒音に関する研究

    下澤良介, 金子成彦, 橋本泰郎

    自動車技術会学術講演会 

    Presentation date: 2000

  • 流体関連振動・騒音の昨日・今日・明日(招待講演)

    金子成彦

    日本音響学会 

    Presentation date: 2000

  • 双子渦を伴う円柱のインライン振動計測

    毛利泰裕, 木都孝洋, 渡辺辰郎, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1999

  • トンネル通過時に発生する高速列車の空力振動の解析

    田中成彦, 金子成彦, 渡辺辰郎

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1999

  • 旋回を伴うすきま流によって励起される弁体の自励振動(第2報)

    植田英明, 安川亮一, 金子成彦, 渡辺辰郎, 本井久之

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1999

  • 双子渦を伴う円柱の抗力方向振動の発生機構に関する研究

    山形浩実, 金子成彦

    第74回応用力学連合講演会 

    Presentation date: 1998

  • 双子渦を伴う円柱の抗力方向振動の発生機構

    山形浩実, 金子成彦

    日本機械学会第75期通常総会講演会 

    Presentation date: 1998

  • 斜張橋ケーブルに発生する後流励起振動に関する研究

    町田剛敏, 金子成彦, 渡辺辰郎, 中野龍児, 片村立太

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1998

  • 旋回を伴うすきま流によって励起される弁体の自励振動(第1報)

    植田英明, 富永康之, 金子成彦, 渡辺辰郎, 本井久之

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1998

  • 環状すきま流励起振動に関する研究(第2報、安定性解析及び実験)

    李 東偉, 金子成彦, 葉山眞治

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1998

  • 環状すきま流励起振動に関する研究(第1報、非定常圧力分布及び非定常流体力)

    李 東偉, 金子成彦, 葉山眞治

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1998

  • 柔軟構造物のフラッタに関する研究

    田中成彦, 藤谷 宏, 渡辺辰郎, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1998

  • 非線形波動の能動制御

    金子成彦

    第47回応用力学連合講演会 

    Presentation date: 1998

  • 溢流によって発生する二重円筒弾性堰の自励振動

    田中成彦, 金子成彦, 渡辺辰郎

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1998

  • 自動車車内騒音車外騒音規制について

    金子成彦  [Invited]

    自動車技術会春季学術講演会 

    Presentation date: 1997.05

  • 風によるケーブルの振動へのアクティブ張力制御への適応に関する実験的研究(渦励振と後流励起振動へのアクティブ張力制御の適用)

    金子成彦, マルスディ ブディウトモ, 渡辺辰郎, 中野龍児

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1997

  • 振動モードの制御による斜張橋斜材ケーブルの制振

    中野龍児, 片村立太, 金子成彦

    日本機械学会第5回運動と振動の制御シンポジウム 

    Presentation date: 1997

  • 張力を受ける紙のフラッタに関する研究

    鈴木雄一, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1997

  • 移動矩形容器内で発生する浅水波の残留振動制御

    金子成彦, 渡辺辰郎, 徳永正秀

    日本機械学会第10回計算力学講演会 

    Presentation date: 1997

  • 流入流出のある系におけるスロッシングの非線形応答

    金子成彦, 町田剛敏, 新名真也

    日本流体力学会年会講演会 

    Presentation date: 1997

  • 減衰ネットを水平に挿入した矩形同調液体ダンパーの制振特性

    金子成彦, 渡辺辰郎, 伊藤 亨

    日本機械学会D&D’97 21世紀のダンピング技術シンポジウム 

    Presentation date: 1997

  • 平板堰を越える流れによって発生する自励的液面揺動(高次モードに関する検討)

    金子成彦, 渡辺辰郎

    日本機械学会第74期通常総会 

    Presentation date: 1997

  • ケーブルに発生する渦励振のアクティブテンションコントロール

    黒羽達夫, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1996

  • 液体搬送時の円筒タンク内液体の液位振動制御

    山形浩実, 金子成彦

    日本機械学会第73期通常総会 

    Presentation date: 1996

  • 斜面を移動する液体搬送装置の最適制御理論による液面振動制御

    金子成彦, 青井 修, 渡辺辰郎

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1996

  • 同調液体ダンパーの制振性能に関する研究(減衰ネットが水平方向に挿入された場合)

    金子成彦, 渡辺辰郎, 横山晃治

    日本機械学会第74期全国大会 

    Presentation date: 1996

  • いつ流による薄肉円筒堰の流力弾性振動(トラベリングモードの実験的確認)

    金子成彦, 村田大輔

    日本機械学会第73期通常総会 

    Presentation date: 1996

  • 自励振動系の能動的安定化技術

    金子成彦

    日本機械学会第72期通常総会講演会 

    Presentation date: 1995

  • ケーブルで支持された剛体円柱に発生する渦励振の振動制御に関する研究

    小西 哲, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1995

  • 最適制御理論による液体搬送車の液位振動制御に関する研究

    金子成彦, 本吉智行, 難波宏吉

    日本機械学会振動音響新技術シンポジウム 

    Presentation date: 1995

  • 流入流出のあるスロッシングの非線形応答

    町田剛敏, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1995

  • 減衰ネットを挿入した円筒型同調液体ダンパーの制振性能に関する研究

    金子成彦, 溝田康男

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1995

  • 複数枚の減衰ネットを挿入した矩形同調液体ダンパーの制振特性

    金子成彦, 渡辺辰郎, 別所智彦

    日本機械学会第73期全国大会 

    Presentation date: 1995

  • バルブの振動シミュレーションにおける計算手法の選び方

    金子成彦

    自動車技術会シンポジウム 

    Presentation date: 1994

  • すきま流励起振動のアクティブコントロール

    西原 崇, 金子成彦

    日本機械学会3rdAVDシンポジウム 

    Presentation date: 1994

  • 付加流体力による片持ちはりのすき間流励起振動のアクティブコントロール

    西原 崇, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1994

  • 同調液体ダンパーの制振性能に関する研究

    溝田康男, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1994

  • いつ流によって発生する弾性平板堰の自励振動(第4報)

    長倉 博, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1994

  • 液体搬送時の液位振動制御に関する研究

    難波宏吉, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1993

  • ネットを挿入した同調液体ダンパーの制振特性

    金子成彦, 吉田 治, 石川雅章

    土木学会第2回振動制御コロキウムPART B 

    Presentation date: 1993

  • 減衰ネットを挿入した同調液体ダンパーの制振特性

    吉田 治, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1993

  • いつ流によって発生する弾性平板堰の自励振動(第3報)

    長倉 博, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1993

  • いつ流による弾性堰の自励振動

    金子成彦, 長倉 博, 渡辺辰郎

    日本機械学会2nd AVDシンポジウム 

    Presentation date: 1993

  • 流路内に両端単純支持されたはりの安定性に及ぼすすきま幅の影響

    長倉 博, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1992

  • すきま流励起振動のアクティブコントロール

    廣田和生, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1992

  • スロッシングを利用した制振装置のモデリング

    金子成彦, 渡辺辰郎

    日本機械学会AVDシンポジウム 

    Presentation date: 1992

  • 同調液体ダンパーの制振効果に関する研究

    金子成彦, 渡辺辰郎, 吉田 治

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1992

  • いつ流によって発生する弾性平板堰の自励振動(第2報)

    中野龍児, 長倉 博, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1992

  • いつ流による円筒堰の自励振動

    長倉 博, 金子成彦

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1992

  • 容器内液体の共振を利用した構造物の制振装置に関する研究

    石川雅章, 金子成彦

    日本機械学会機械力学・計測制御部門講演会 

    Presentation date: 1991

  • 液体の共振を利用した制振装置

    金子成彦

    日本舶用機関学会10月・月例講演会 

    Presentation date: 1991

  • いつ流によって発生する弾性平板堰の自励振動

    金子成彦, 渡辺辰郎, 中野龍児

    日本機械学会機械力学・計測制御講演会 

    Presentation date: 1991

  • 非線形自励振動系を対象とした数値積分法の特性評価

    金子成彦ほか

    日本機械学会機械力学・計測制御部門講演会 

    Presentation date: 1990

  • 1次元平行すきま流路内に置かれた片持ち弾性はりの安定性

    長倉 博, 金子成彦

    日本機械学会機械力学 

    Presentation date: 1990

  • 混ざり合わない2種類の液体で完全に満たされた中空回転軸の自励振動

    金子成彦, 渡辺辰郎

    日本機械学会 

    Presentation date: 1989

  • 一体型ビデオカメラを用いた平行回転円板間に生ずる非定常流れの計測

    平岩正一, 清水 隆, 大澤義知, 金子成彦, 葉山眞治

    流れの可視化 

    Presentation date: 1985

  • 平行回転円板間の不安定流れの可視化(水素気泡法による流れの可視化)

    稲田文夫, 角田昌之, 金子成彦, 葉山眞治

    流れの可視化 

    Presentation date: 1983

  • 平行回転円板間に発生する不安定流れに関する研究(第1報、シュラウドの及ぼす影響についての検討)

    松村安家, 大野啓明, 金子成彦, 葉山眞治

    日本機械学会 

    Presentation date: 1982

  • 平行回転円板間の不安定流れの可視化

    松村安家, 大野啓明, 金子成彦, 葉山眞治

    流れの可視化 

    Presentation date: 1982

  • 回転円筒容器内に部分的に含まれた液体の自由表面波に関する研究(第2報、境界層理論による流体力の計算)

    金子成彦, 葉山眞治

    日本機械学会 

    Presentation date: 1982

  • 液体で部分的に満たされた中空回転軸系の自励振動に関する研究(第2報、安定性に関する実験)

    金子成彦, 葉山眞治

    日本機械学会 

    Presentation date: 1981

  • 液体で部分的に満たされた中空回転軸系の自励振動に関する研究(第1報、境界層理論から得られた流体力に基づく安定性の解析)

    金子成彦, 葉山眞治

    日本機械学会 

    Presentation date: 1981

  • 回転円筒容器内に部分的に含まれた液体の自由表面波に関する研究(第2報、粘性理論による解析)

    金子成彦, 葉山眞治

    日本機械学会 

    Presentation date: 1980

  • 回転円筒容器内に部分的に含まれた液体の自由表面波に関する研究(第1報、共振モードの可視化と非粘性理論による解析)

    金子成彦, 葉山眞治

    日本機械学会 

    Presentation date: 1980

  • 回転円筒容器内の液面揺動

    金子成彦, 葉山眞治

    日本機械学会 

    Presentation date: 1978

  • 予混合気の不均質性を利用したHCCIエンジンの振動騒音低減

    藤原慎之輔, 山崎由大, 金子成彦

    日本機械学会関東学生会第51回学生員卒業研究発表講演会 

  • イオン電流によるバイオマスガスHCCI エンジンのノックおよび予混合気不均質時の燃焼状態把握

    千野雅紀, 山崎由大, 金子成彦

    日本機械学会関東学生会第51回学生員卒業研究発表講演会 

  • バイオマスガス燃料対応小型ガスエンジンの開発(燃料中のH2およびCOが燃焼に及ぼす影響)

    西澤幸紘, 永田裕樹, 山崎由大, 金子成彦

    日本機械学会関東支部第14期総会講演会,総会講演会 

▼display all

Research Projects

  • Development of a driver's physical condition prediction model that can consider dynamic changes in the thermal environment inside the vehicle

    The Japan Society for the Promotion of Science (JSPS)  Grant-in-Aid for Scientific Research (C)

    Project Year :

    2021.04
    -
    2024.03
     

    Shigehiko Kaneko, Akane Uemichi

  • Mathematical model for the prediction of driver's health condition

    Grants-in-Aid for Scientific Research

    Project Year :

    2018.04
    -
    2021.03
     

    Shigehiko Kaneko

  • 小型エネルギー変換機器の高効率・環境性能両立実現のための動的設計法の研究

    Grants-in-Aid for Scientific Research

    Project Year :

    2014.04
    -
    2018.03
     

    Shigehiko Kaneko

  • マイクロターボ機械用動圧型気体スラストフォイル軸受の設計手法の開発

    Grants-in-Aid for Scientific Research

    Project Year :

    2012.04
    -
    2015.03
     

    Shigehiko Kaneko

  • Comfortable seat design by using non-invasive bio-signal measurement and aqua dummy

    Grants-in-Aid for Scientific Research

    Project Year :

    2012.04
    -
    2015.03
     

    Shigehiko Kaneko

  • Control technologies of co-generation for smart energy network systems

    Grants-in-Aid for Scientific Research

    Project Year :

    2011.04
    -
    2014.03
     

    Shigehiko Kaneko

  • 入眠予兆信号の計測原理の数理的解明

    Grants-in-Aid for Scientific Research

    Project Year :

    2008
    -
    2010
     

    Shigehiko Kaneko

  • Environment-Friendly Technique for Improving Transient Response of Biomass Gas Turbine for Micro-Grid Use

    Grants-in-Aid for Scientific Research

    Project Year :

    2006
    -
    2010
     

    Shigehiko Kaneko

  • VALIDATION OF NON-INVASIVE CARDIOVASCULAR MONITORING SYSTEM MAKING USE Of THE TECHNOLOGY TO REALIZE THE ENVIRONMENT OF INNER HUMAN BODY AT OUTSIDE HUMAN BODY

    Grants-in-Aid for Scientific Research

    Project Year :

    2003
    -
    2005
     

    Shigehiko Kaneko

  • MECHANISM OF VIBRATION SUPPRESSION EFFECT FOR CONNECTED CANTILEVERED STRUCTURE OSCILLATING IN-LINE DIRECTION IN CROSS FLOW

    Grants-in-Aid for Scientific Research

    Project Year :

    2000
    -
    2002
     

    Shigehiko Kaneko

  • DEVELOPMENT OF BLOOD PRESSURE DATA ACQUISITION SYSTEM MAKING USE OF THE TECHNOLOGY TO REALIZE THE ENVIRONMENT OF INNER HUMAN BODY AT OUTSIDE HUMAN BODY

    Grants-in-Aid for Scientific Research

    Project Year :

    2000
    -
    2002
     

    Shigehiko Kaneko

  • ネオジウム磁石を利用したモードの切り換えによる斜材ケーブル制振システムの開発

    Grants-in-Aid for Scientific Research

    Project Year :

    1999
    -
    2000
     

    Shigehiko Kaneko

  • IDENTIFICATION OF FLUID ELASTIC VIBRATION OF MULTIPLE CYLINDRICAL

    Grants-in-Aid for Scientific Research

    Project Year :

    1997
    -
    1999
     

    Shigehiko Kaneko

  • 搬送系で発生するフラッタのアクティブ張力制御による制振

    Grants-in-Aid for Scientific Research

    Project Year :

    1997
    -
    1998
     

    Shigehiko Kaneko

  • Realization of High Performance Tuned Liquid Damper based on Nonlinearity Control and Damping Control

    Grants-in-Aid for Scientific Research

    Project Year :

    1995
    -
    1997
     

    Shigehiko Kaneko

  • Analysis of Self-excited Sloshing Caused by the Fluid Discharge over the Flexible Weir Including Nonlinearity

    Grants-in-Aid for Scientific Research

    Project Year :

    1995
    -
    1996
     

    Shigehiko Kaneko

  • DESIGN AND CONTROL OF DAMPER UTILIZING SLOSHING PHENOMENA

    Grants-in-Aid for Scientific Research

    Project Year :

    1992
    -
    1993
     

    Shigehiko Kaneko

  • DEVELOPMENT OF THE SYSTEM FOR EVALUATING THE CHARACTERISTICS OF FLOW INDUCED VIBRATION OF ELASTIC STRUCTURES IN CONNECTION WITH ADVANCED SYSTEMS

    Grants-in-Aid for Scientific Research

    Project Year :

    1991
    -
    1993
     

    Shigehiko Kaneko

  • Self-Excited Vibration of a Flexible Shell Caused by Fluid Discharge

    Grants-in-Aid for Scientific Research

    Project Year :

    1990
    -
    1991
     

    Shigehiko Kaneko

  • DEVELOPMENT OF THE SYSTEM FOR MEASURING THREE DIMENSIONAL UNSTABLE FLOW IN MAGNETIC STORAGE DISKS

    Grants-in-Aid for Scientific Research

    Project Year :

    1987
    -
    1989
     

    Shinji Hayama

  • Self-excited Oscillation of a Liquid Filled Rotor

    Grants-in-Aid for Scientific Research

    Project Year :

    1987
    -
    1988
     

    Shigehiko Kaneko

  • 液体内蔵中空回転子に発生する自励振動の防振法に関する研究

    Grants-in-Aid for Scientific Research

    Project Year :

    1984
     
     
     

    Shigehiko Kaneko

  • ディスクフラッタに関する研究

    Grants-in-Aid for Scientific Research

    Project Year :

    1983
     
     
     

    Shigehiko Kaneko

▼display all

Misc

  • モデルベーストエンジニアリングは五感を生かした設計へと脱皮できるか?

    金子成彦

    自動車技術会 エンジンレビュー   11 ( 3 )  2021.04

  • 後輩へのメッセージ: 機械力学・計測制御=明日のために役立つ学問

    金子成彦

    日本機械学会機械力学・計測制御部門ニュースレター    2020.03

  • 改めて思う若手人材育成の在り方(名誉員から一言)

    金子成彦

    日本機械学会誌   122 ( 1213 ) 51  2019.12

  • SIP「革新的燃焼技術」〜制御チームの研究内容と成果(日本燃焼学会誌Vol.61, No.197 pp.35-46, 2019, 8月号の転載記事)

    金子成彦, 草鹿仁, 山崎由大, 溝渕泰寛

    自動車技術   Vol.73   26 - 37  2019.09

    Authorship:Lead author

    Rapid communication, short report, research note, etc. (bulletin of university, research institution)  

  • SIP「革新的燃焼技術」〜制御チームの研究内容と成果

    金子成彦, 草鹿仁, 山崎由大, 溝渕泰寛

    日本燃焼学会誌   Vol.61 ( No.197 ) 35 - 46  2019.08

  • 災害拠点病院を対象とした災害時事業継続性検討のためのエネルギー需給シミュレーション

    上道茜, 及川亮, 山崎由大, 金子成彦

    エネルギー・資源学会研究発表会講演論文集(CD-ROM)   38th  2019

    J-GLOBAL

  • 病院を対象とした災害時事業継続性検討のためのエネルギー需給シミュレーション:分散型電源機器のモデル化とシステムシミュレータの構築

    及川亮, 海藤直記, 上道茜, 山崎由大, 金子成彦

    日本機械学会関東支部総会・講演会講演論文集(CD-ROM)   25th  2019

    J-GLOBAL

  • Examination of resonance frequency for combustion oscillation considering axial temperature distribution in a combustor

    三谷冠, 上道茜, 山崎由大, 金子成彦

    日本機械学会年次大会講演論文集(CD-ROM)   2019  2019

    J-GLOBAL

  • Grasp of the influence of temperature distribution in the tube simulating a gas turbine combustor on acoustic boundary conditions

    秋野広佑, 上道茜, 山崎由大, 金子成彦

    日本機械学会年次大会講演論文集(CD-ROM)   2019  2019

    J-GLOBAL

  • Multi-objective optimization of pipe-routing to suppress the piping vibration due to the turbulent flow

    藤島脩平, 上道茜, 山崎由大, 金子成彦, 高橋志郎

    日本機械学会年次大会講演論文集(CD-ROM)   2019  2019

    J-GLOBAL

  • Evaluation of a prediction model of friction loss in a turbocharger considering the effect of windage loss

    福田直人, 上道茜, 山崎由大, 金子成彦

    日本機械学会年次大会講演論文集(CD-ROM)   2019  2019

    J-GLOBAL

  • マイクロガスタービンの技術動向と開発事例

    金子成彦, 上道茜

    電気評論   4月号 ( 4 ) 37 - 42  2019

    CiNii

  • 災害拠点病院を対象とした分散型電源導入量の決定手法

    八木正彰, 上道茜, 山崎由大, 金子成彦

    日本オペレーションズ・リサーチ学会春季研究発表会アブストラクト集   2018  2018

    J-GLOBAL

  • 災害時の事業継続性を考慮した省エネルギー機器導入量最適化

    上道茜, 山崎由大, 八木正彰, 金子成彦, 及川亮

    安全工学シンポジウム講演予稿集   2018  2018

    J-GLOBAL

  • 災害拠点病院における分散型電源システム最適導入量の検討

    海藤直記, 及川亮, 上道茜, 山崎由大, 金子成彦

    日本地震工学シンポジウム論文集(CD-ROM)   15th  2018

    J-GLOBAL

  • 液体水素ターボポンプで発生する軸方向振動運動モデルの構築

    坂本和弥, 上道茜, 大西樹, 杉山敬幸, 金子成彦

    Dynamics & Design Conference (CD-ROM)   2018  2018

    J-GLOBAL

  • 管内の熱源が上流側音響的境界条件に与える影響

    南野暖, 三谷冠, 上道茜, 金子成彦

    日本機械学会年次大会講演論文集(CD-ROM)   2018  2018

    J-GLOBAL

  • ターボチャージャーの機械損失予測モデルの妥当性検証

    米澤知樹, 上道茜, 山崎由大, 金子成彦

    日本機械学会年次大会講演論文集(CD-ROM)   2018  2018

    J-GLOBAL

  • Multi-objective optimization of pipe routing to suppress vibration by inner fluid flow

    八木正彰, 藤島脩平, 上道茜, 金子成彦, 高橋志郎

    日本機械学会最適化シンポジウム(CD-ROM)   13th  2018

    J-GLOBAL

  • 着座センサを用いた入眠予兆検知と眠気推定技術

    金子成彦

    車載テクノロジー    2017.11

  • 災害リスクを考慮したCGS・PV・蓄電池から構成される分散型電源導入計画

    八木正彰, 上道茜, 山崎由大, 金子成彦, 坂東茂

    エネルギー・資源学会研究発表会講演論文集(CD-ROM)   36th  2017

    J-GLOBAL

  • ターボチャージャにおける機械損失モデルの構築

    坂上聡, 上道茜, 山崎由大, 金子成彦, 窪山達也, 森吉泰生

    内燃機関シンポジウム講演論文集(CD-ROM)   28th  2017

    J-GLOBAL

  • Combustion and Exhaust Characteristics of a Methane-Fueled Rich SI Engine

    柿木将, 三好正城, 山崎由大, 上道茜, 金子成彦

    日本機械学会動力・エネルギー技術シンポジウム講演論文集(CD-ROM)   22nd  2017

    J-GLOBAL

  • ピッチング加振を受ける水平円筒容器内スロッシングの共振波高に対する多孔板の減衰効果のCFDを用いた評価

    新木悠斗, 上道茜, 山崎由大, 金子成彦

    Dynamics & Design Conference (CD-ROM)   2017  2017

    J-GLOBAL

  • 音響境界条件を考慮した燃焼振動発振周波数の検討

    上道茜, 金築一平, 金子成彦

    Dynamics & Design Conference (CD-ROM)   2017  2017

    J-GLOBAL

  • 震災後の調査提言活動を通じて考えたこと

    金子成彦

    日本機械学会創立120周年に際しての歴代会長随想    2017

  • マイクロフローリアクタを用いた予混合気着火遅れ時間の予測法の検討

    福田豊, 竹島康貴, 上道茜, 山崎由大, 金子成彦

    燃焼シンポジウム講演論文集   54th  2016

    J-GLOBAL

  • マイクロフローリアクターを用いた予混合気着火遅れ時間の推定

    福田豊, 上道茜, 山崎由大, 金子成彦

    日本機械学会年次大会講演論文集(CD-ROM)   2016  2016

    J-GLOBAL

  • 水素を大量に含む燃料の燃焼振動現象

    金築一平, 上道茜, 金子成彦

    日本機械学会年次大会講演論文集(CD-ROM)   2016  2016

    J-GLOBAL

  • ピッチング加振により励起される水平円筒容器内スロッシングと多孔板の減衰効果

    高居明弘, 酒井英充, 酒井英充, 上道茜, 金子成彦

    Dynamics & Design Conference (CD-ROM)   2016  2016

    J-GLOBAL

  • SIP「革新的燃焼技術」制御チームの研究状況

    金子成彦

    自動車技術   Vol.70 ( No.9 ) 32 - 37  2016

  • 1DCAEのための機械力学を使いこなす考え方

    金子成彦

    設計工学   Vol.51 ( No.6 ) 31 - 36  2016

  • G0700102 Chemical reaction mechanism in HCCI combustion of biomass gas with ozone addition

    Ikemura Ryosuke, Miyauchi Kenta, Yamasaki Yudai, Kaneko Shigehiko

    Mechanical Engineering Congress, Japan   2015   "G0700102 - 1"-"G0700102-6"  2015.09

     View Summary

    For controlling ignition of HCCI engine fueled by biomass gas, the effect of ozone addition was investigated. In previous experiment, it was shown that ignition timing is advanced by ozone addition. In this paper, the chemical reactions and the mechanism of ignition advance by ozone addition were investigated by calculation with erementaly reactions. As a result, the heat releace was divided into two stages under the influence of O radical, produced by thermal decomposition of ozone. Moreover, Hydrogen peroxide was produced after the first combustion, and the second ignition was advanced by OH radical produced by Hydrogen peroxide.

    CiNii

  • G0700105 A simplified model of the intake and exhaust system for a multi-cylinder engine

    KAWASUMI Yusuke, UESUGI Yasuto, YAMASAKI Yudai, KANEKO Shigehiko, HIKITA Takayuki, MIZUNO Saori, TSUMURA Yuichiro

    Mechanical Engineering Congress, Japan   2015   "G0700105 - 1"-"G0700105-5"  2015.09

     View Summary

    A simplified model of the intake and exhaust gas flow system for an in-line four cylinder HCCI engine with the exhaust rebreathing system was constructed. The model predicted the mass of EGR and its accuracy was verified by comparing with various experimental results. In addition, ignition timing was calculated by using the predicted mass of EGR. The results show a good agreement with experimental results and the availability of the model in ECU is indicated for its fast calculation time.

    CiNii

  • 613 Combustion Oscillation in Gas Turbine Combustor Considered Pipe Arrangement

    MACHIDA Riku, UEMICHI Akane, KANEKO Shigehiko

    Dynamics and Design Conference : D & D   2015   "613 - 1"-"613-11"  2015.08

     View Summary

    Combustion oscillation is investigated experimentally and theoretically in order to predict combustion oscillation for various fuel mixture conditions. To grasp the characteristics of combustion oscillation, combustion experiments were performed in the mockup combustor of micro gas turbine combustor with high swirl number Sw=2.42. Experimental result shows that two types of oscillation were observed: one is piping oscillation whose frequencies are mostly under 100 Hz and the other is combustion oscillation whose frequencies are over 400 Hz. We also found that frequency suddenly shifts to higher frequency about 600 Hz when hydrogen ratio is large. This phenomenon is supposed to be processing vortex core (PVC) because of whirling of vortex core. Since RMS value of pressure due to combustion oscillations obtained by the experiments and calculated laminar flame speed has common characteristics, pressure interaction index was modified due to relationships among laminar flame speed, pressure, density, and heat release rate; the pressure interaction index can be described as a function of laminar flame speed. Then, we proposed the criterion of the growth rate for judgment of combustion oscillation occurrence based on n-z model. This modified criterion could be much successfully judged combustion oscillations than the previous model using the constant value of the pressure interaction index 0.05. However, the criterion is very sensitive about frequency.

    CiNii

  • 607 Dynamic model for a free standing spent fuel rack

    KANEKO Shigehiko, YAMASAKI Yuudai, TAKAI Akihiro

    Dynamics and Design Conference : D & D   2015   "607 - 1"-"607-11"  2015.08

     View Summary

    The purpose of this paper is to propose the model for a free standing rack behavior under earthquake excitation, and to find a way to design an earthquake-resistant rack by using this model. In this paper, we established the model a rocking behavior of a rack, and we validated the proposed model comparing with an experiment. Succeedingly, we conducted parameter study with the model by changing the coefficient of statistic friction, the coefficient of dynamic friction, and the coefficient of restitution. Finally, we found that the coefficient of statistic friction had a limit to make an effect to the maximum angle of the rack, and that the coefficient of restitution might have a possibility to reduce the maximum displacement of the rack.

    CiNii

  • 222 A Method of Sleepiness Estimation

    SAKAGAMI Satoshi, KANEKO Shigehiko

    Dynamics and Design Conference : D & D   2015   "222 - 1"-"222-12"  2015.08

     View Summary

    Although traffic accidents are decreasing these years, drowsy driving causes terrible accidents like drowsy driving accident of highway express bus on KAN-ETSU EXPRESSWAY in 2012. So many researches are conducted how to estimate drivers' sleepiness by their physiological data, e.g. brain waves, pulse waves, eye movement and body movement. The aim of this paper is which and how each physiological data is in use for sleepiness estimation. Especially, we took notice of pulse wave and eye movement because their changes are correlate closely to sleepiness changes and they are measured more easily. In our experiment, pulse waves were measured by pulse oximeter, eye movement was measured by EOG method and sleepiness was evaluated from facial expressions. And we measured sleeping hour and quality at the previous night by life-log tool because we thought the quality of sleep affects the next day performance. What proves in our experiment is that the quality of sleep at the previous night affects the pulse wave and we could make pulse waves' index for estimation more correlate to sleepiness. And it's proved that eye movement is more correlate to high sleepiness level than low one. We estimated sleepiness by use of discriminant analysis which is one of machine learning methods. At first training data is made which already connect physiological data with sleepiness level. After learning training data, discriminant function is made and sleepiness level is estimated from this function and new physiological data. After estimating sleepiness about all subjects, we concluded that there are individual differences in the relation between pulse waves and sleepiness level, but there are not individual differences in the relation between eye movement and sleepiness level. If you want to estimate sleepiness of general people except the subject, not pulse waves but eye movement should be used.

    CiNii

  • C123 Simulation of distributed energy system for optimal operation considered an emergency case

    NAGAO Hiroshi, KANEKO Shigehiko, YAMASAKI Yudai

    National Symposium on Power and Energy Systems   2015 ( 20 ) 69 - 72  2015.06

     View Summary

    In recent years, the importance of business continuing planning (BCP) of a building is increasing and in this context, gas engine generators and emergency generators attract attention. However, when introducing such devices, there is no guideline based on the evaluation of introductory merit from the viewpoint of both usual and emergency cases. In this paper, the guideline is proposed based on the simulation result taking account of a disaster risk, device installation cost and a running cost with hotels, hospitals, offices, collected houses as target buildings. The running cost was called for by simulation. The introductory support matrix was created using these results, and the plan for a consumer to introduce a device was shown.

    CiNii

  • D234 Effect of ozone addition on combustion of biomass gas fueled engine

    Ikemura Ryosuke, Miyauchi Kenta, Yamasaki Yudai, Kaneko Shigehiko

    National Symposium on Power and Energy Systems   2015 ( 20 ) 305 - 308  2015.06

     View Summary

    For controlling ignition and combustion of an engine fueled by biomass gas, the effect of ozone addition to two different combustion modes was investigated in experiment. Targeted combustion modes are HCCI and Dual-Fuel Engine (DFE). In HCCI, premixture of biomass gas and heated air is compressed and ignited simultaneously in multi points. In DFE, diesel oil is injected and the premixture is burned by flame propagation starting at the ignition of diesel oil. Effect of ozone addition to each combustion mode is compared from the viewpoint of the difference of ignition mechanism. As a result, in HCCI, ignition timing was advanced by ozone addition, and the possibility of controlling ignition by ozone addition was exhibited. On the other hand, in DFE, ignition timing didn't change even with ozone addition. However, combustion type of premixed gas was changed with some amount of ozone added.

    CiNii

  • 旋回流中で形成される超過濃火炎

    上道茜, 山崎由大, 金子成彦

    燃焼シンポジウム講演論文集   53rd  2015

    J-GLOBAL

  • 配管を考慮したガスタービン燃焼器内で発生する燃焼振動

    町田陸, 上道茜, 金子成彦

    Dynamics & Design Conference (CD-ROM)   2015  2015

    J-GLOBAL

  • マイクロフローリアクターによる排気再循環を伴う予混合気の自己着火特性の把握

    林卓哉, 上道茜, 山崎由大, 金子成彦

    日本機械学会年次大会講演論文集(CD-ROM)   2015  2015

    J-GLOBAL

  • J0910204 Numerical Simulation of Pulse Wave Propagation with Arterial Network

    SAITO Sohei, YASUDA Kazuma, KANEKO Shigehiko

    Mechanical Engineering Congress, Japan   2014   "J0910204 - 1"-"J0910204-5"  2014.09

     View Summary

    In this study, the state of pulse wave propagation is obtained by conducting one dimensional numerical simulation. For the peripheral boundary condition, structure tree model is proposed. In this model, vessels is devided into two kinds of arteries, one is the large artery whose the elements can be obtained by the measurement, and the other is the peripheral artery which is assumed by the knowledge of human body. Hence, it can be possible to gain the pulse wave not only in the large arteries but also in the peripheral arteries by applying structure tree model. For the velocity distribution needed in order to determine the influence of viscosity in the Navie-Stokes equation, two kinds of velocity distribution are used, one is the simple distribution using boundary layer thickness, and the other is the distribution suggested by Smith. By applying these two velocity distribution, it is clarified that results of simulation using these two velocity distribution are similar to the data obtained by the measurement qualitatively and quantatively. That is to say, it can be said that we can gain the similar result with measurement data by using the simple velocity distribution, which we can determine by assuming the boundary layer thickness easily.

    CiNii

  • J0910106 An Approach for Jet Noise Reduction by High Pressure Tone Excitation

    Omiya Shuichiro, Ishii Tatsuya, Oinuma Hideshi, Wada Kei, Fukumoto Masataka, Kaneko Shigehiko

    Mechanical Engineering Congress, Japan   2014   "J0910106 - 1"-"J0910106-5"  2014.09

     View Summary

    It is known that by exciting jet the mixing characteristics of the jet changes according to excitation frequencies. In this study, the device to inject air and to radiate pure tone sound to jet shear layer was constructed and jet was excited at three frequencies to change the vortices structures of the jet in attempt to reduce the jet noise. Hartmann Generator and resonance chamber were used to generate pure tone which is large enough to excite the subsonic jet. The result shows that by exciting jet at St < 0.3 high frequency noise was reduced comparing to unexcited jets.

    CiNii

  • J0910203 Sloshing in a Horizontal Cylindrical Container used as Gas-Liquid Separator

    SAKAI Hidemitsu, KANEKO Shigehiko

    Mechanical Engineering Congress, Japan   2014   "J0910203 - 1"-"J0910203-5"  2014.09

     View Summary

    Floating Production, Storage and Off-loading system (FPSO) for liquid natural gas is now attracting big attention as an effective way for gas exploitation at the bottom of the sea. This paper is related to dynamical design of gas-liquid separator used on FPSO, specially focused on the free surface elevation in the horizontal cylindrical container subjected to longitudinal external excitation. In this study, the theory on the wave height and resonant frequency in a horizontal cylinder under effect of the perforated plate with open space is developed. And the result of theory analysis and experiments are compared. As a result, the effect of the perforated plate with open space is revealed. Finally, experimental data of resonant wave height up to 3^<rd> mode are shown in comparison with theoretically derived results.

    CiNii

  • G0710104 0 Dimensional Model of HCCI Combustion Considering Inhomogeneity of Pre-Mixture

    UESUGI Yasuto, YAMASAKI Yudai, KANEKO Shigehiko, HIKITA Takayuki, TSUMURA Yuichiro, MIZUNO Saori

    Mechanical Engineering Congress, Japan   2014   "G0710104 - 1"-"G0710104-5"  2014.09

     View Summary

    To predict ignition timing and combustion duration of HCCI combustion, it is necessary to consider inhomogeneity of pre-mixture such as O_2, Fuel, and temperature. Usually, CFD (Computational Fluid Dynamics) is applied to predict the inhomogeneity. However, the calculation load of CFD is heavy to use as the on-board model. In this study, a simple prediction model for ignition timing and combustion duration of HCCI combustion is developed, which can consider inhomogeneity of pre-mixture. PDF of EGR gas is employed to express the influences of inhomogeneity of O_2 and temperature in pre-mixture. This model is confirmed by comparing with the experiment result of the HCCI test bench. As a result, the predictability of this model achieves around 50% for plus minus 1.5 deg. of ignition timing and combustion duration.

    CiNii

  • G0710103 Simplified Dynamics Model of Homogeneous Charge Compression Engines

    MA Qiong, YAMASAKI Yudai, KANEKO Shigehiko, HIKITA Takayuki, TSUMURA Yuichiro, MIZUNO Saori

    Mechanical Engineering Congress, Japan   2014   "G0710103 - 1"-"G0710103-4"  2014.09

     View Summary

    This paper presents a simplified model of Homogeneous Charge Compression Ignition (HCCI) engine, which is suitable for controller synthesis. There are several control strategies to achieve stable HCCI operation, and here the exhaust rebreathing strategy is applied. To capture the key features of the rebreathed HCCI engine and make it simple enough for controller synthesis meanwhile, a simple control-oriented model is proposed.

    CiNii

  • G0710102 Prediction model of pressure rise rate and cyclic variation for HCCI engine

    UMAHASHI Sota, YAMASAKI Yudai, KANEKO Shigehiko, HIKITA Takayuki, TSUMURA Yuichiro, MIZUNO Saori

    Mechanical Engineering Congress, Japan   2014   "G0710102 - 1"-"G0710102-4"  2014.09

     View Summary

    With the aim of designing a homogeneous charge compression ignition (HCCI) engine and also considering the range of prediction model, it is necessary to avoid the operation in lower combustion efficiency and generating noise. In this study, prediction models of the rate of pressure rise and cyclic variation were considered. As a result, it was clarified that rate of pressure rise is predicted by amount of injected fuel, ignition timing and combustion duration. It was also clarified that there is the good correlation between the rate of pressure rise and cyclic variation, and the proposed prediction model of pressure rise rate is also useful to predict the cyclic variation.

    CiNii

  • 208 The Research in the Characteristic of Combustion Oscillations in the Combustor of the Micro Gas Turbine

    MACHIDA Riku, HWANG Hosung, ONO Takuya, KITAMURA Ryohei, UEMICHI Akane, KANEKO Shigehiko

    Dynamics and Design Conference : D & D   2014   "208 - 1"-"208-12"  2014.08

     View Summary

    In this study, characteristics of combustion oscillation generated in gas turbine combustor are numerically and experimentally investigated. Numerical analyses are performed with two different methods: Combined EBU method and Comparison PDF Transport method. These numerical results provide important parameters such as delay time. Stability criterion for combustion oscillation is evaluated by the combination of numerical analysis technique and the evaluation formula proposed by Z. M. Ibrahim. Experimental conditions are selected to investigate the condition of combustion oscillation excitation mechanism by changing experimental parameter such as composition of the fuel, equivalence ratios and swirl numbers. As a result, with increasing the rate of hydrogen in fuel or the swirl numbers, combustion oscillation is likely to occur and combustion oscillation occur under the conditions of specific equivalence ratios in the experiment. Finally, experimental results are compared with numerical analyses. A trend of natural frequency to the change of equivalence ratio and the range of equivalence ratios which combustion oscillation occurs by the numerical analysis is in good agreement with those by the experiment.

    CiNii

  • 210 Vibration Analysis of a Flexible Structure for Human Dummy

    MINAMI Katsutoshi, KANEKO Shigehiko, YAMASAKI Yudai, TENDA Naoya

    Dynamics and Design Conference : D & D   2014   "210 - 1"-"210-10"  2014.08

     View Summary

    When evaluating riding comfort of vehicles, sometimes human dummy developed by spring-mass-damper system is used to avoid individual variation. However, because human body is continuum, such kind of dummies cannot completely represent vibration characteristic of human body. Therefore, in this paper, to represent vibration characteristic of human body as continuum, new types of dummy developed by soft structure filled with fluid, which are defined as aqua dummy, are contrived and as the first step, vibration characteristic, especially apparent mass, of the dummy is examined by simulation and experiment. In the simulation, the effects of parameters of structure and fluid on dummy's vibration characteristic are calculated by two dimension model, and it is found that the parameters of structure, not fluid, have a big influence on dummy's vibration characteristic. Additionally, the simulation reveals a problem of the aqua dummy as human dummy that apparent mass increases in higher frequency than anti-resonance frequency. On the other hand, from the result of the experiment, it is found that the increase of apparent mass in higher frequency than anti-resonance frequency is smaller than expected by simulation. In conclusion, aqua dummy is found to be a hopeful human dummy.

    CiNii

  • 211 Construction of Dynamic Model for Spent Fuel Racks

    SHIRAI Hironao, KANEKO Shigehiko, YAMASAKI Yudai

    Dynamics and Design Conference : D & D   2014   "211 - 1"-"211-10"  2014.08

     View Summary

    Fuel spent at nuclear power plant is stored in rack and kept in water. Free standing rack has advantage to earthquake because fluid force and friction force reduce the movement of a rack. However there are various motions of FS rack when earthquake happens. Therefore the motion of FS rack must be precisely figured out in order to use FS rack safely. In this research, to investigate the motion of FS rack, 2-dimensional dynamic model considering pressure loss of gap flow was constructed. In addition, an experiment with a 1/16 scale model was conducted to evaluate dynamic model. From numerical results by dynamic model, following some importance for design of FS rack was found. Firstly, it is to take measures to long-period earthquake. Secondly, it is a safety for the excitation in a vertical direction of a wall. Thirdly, it is to locate racks parallel to next walls. Finally, in the case of locating some racks, it is to take measures to prevent racks from being united. Additionally, examples to apply this dynamic model to acceleration of earthquake were indicated.

    CiNii

  • 3B15 A study on introduction of gas engine to micro-grid with genetic algorithm(The 12th International Conference on Motion and Vibration Control)

    YAMAGUCHI Yugo, MACHIDA Riku, KANEKO Shigehiko, YAMASAKI Yudai

    Dynamics and Design Conference   2014 ( 12 ) "3B15 - 1"-"3B15-12"  2014.08

     View Summary

    One of the methods to cover the change of the output by renewable energy subject is construction of micro-grid. In micro-grid the change of output of renewable energy is controlled by distributed generation. This study was performed to develop the algorithm that determines the number of gas engines and the amount of battery about several demands to use micro-grid optimally considering environmental load with genetic algorithm. In this study system that consists of photovoltaic, gas engines and battery is supposed. Evaluation functions are the emission of CO_2, system efficiency and generation cost. According to this study, variables are determined with respect to influence of generation cost and the emission of CO_2. However, the influence of system efficiency is small. Furthermore evaluation of population of optimal solutions is performed. In population of optimal solutions, by investment ten thousands yen in system 25〜35 tons of the emission of CO_2 is cut.

    CiNii

  • C134 A study in the method of distributed generation introduction for controlling the fluctuation in renewable energy output

    YAMAGUCHI Yugo, MACHIDA Riku, KANEKO Shigehiko, YAMAZAKI Yudai

    National Symposium on Power and Energy Systems   2014 ( 19 ) 105 - 108  2014.06

     View Summary

    One of the methods to cover the change of the output by renewable energy subject is construction of micro-grid. In micro-grid the change of output of renewable energy is controlled by distributed generation. This study was performed to develop the algorithm that determines the number of gas engines and the amount of battery about several demands to use micro-grid optimally considering environmental load with genetic algorithm. In this study system that consists of photovoltaic, gas engines and battery is supposed. Evaluation functions are the emission of CO_2, system efficiency and generation cost. According to this study, variables are determined with respect to generation cost and the emission of CO_2. However, system efficiency is not taken into consideration. Furthermore evaluation of population of optimal solutions is performed. In population of optimal solutions, by investment ten thousands yen in system 25〜35 tons of the emission of CO_2 is cut.

    CiNii

  • F135 A study in dual fuel engines with biomass gas

    MIYAUCHI Kenta, FUJIWARA Naoto, YAMASAKI Yudai, KANEKO Shigehiko

    National Symposium on Power and Energy Systems   2014 ( 19 ) 183 - 186  2014.06

     View Summary

    To use biomass energy by gasifying, it is considered to utilize dual fuel engines and burn biomass gas with light oil, because biomass gas has compositional fluctuation and the effect of this fluctuation should be suppressed. But the number of experimental conditions, for example, the energy ratio of gas and the quantity of light oil, is too large and it is very difficult to investigate the effects of fluctuation by experiment. In this paper, combustion model of dual fuel engines using biomass gas is constructed and is verified in ability to estimate thermal efficiency, cylinder pressure, and rate of heat release through compared to these parameters of experiments. The results are as follows. Increase in quantity of fuel gas declines thermal efficiency and this model can expect this trend qualitatively, but not quantitatively. The effect of fluctuation of hydrogen rate included to biomass gas can also be estimated except the lowest rate.

    CiNii

  • 回転対向流双子火炎におけるプロパン空気超過濃燃焼

    上道茜, 山崎由大, 金子成彦

    燃焼シンポジウム講演論文集   52nd  2014

    J-GLOBAL

  • マイクロガスタービン燃焼器内で発生する燃焼振動の特性に関する研究

    町田陸, HWANG Hosung, 大野卓也, 北村遼平, 上道茜, 金子成彦

    Dynamics & Design Conference (CD-ROM)   2014  2014

    J-GLOBAL

  • B-9 Noise and Aerodynamic Measurement of Heated Jet Using a Small Jet Engine

    OMIYA Shuichiro, SAKAI Hidemitsu, WADA Kei, OINUMA Hideshi, ISHII Tatsuya, KANEKO Shigehiko

      ( 41 ) 199 - 204  2013.10

     View Summary

    One of the significant noise sources of jet engine is jet noise, and it is known that mixing devices which are attached to nozzle lip and enhance mixture of high speed flow and surrounding air are effective for jet noise reduction. However, thrust loss is also induced by a noise reduction device, and many investigations have to be conducted to optimize balance between noise reduction and thrust loss. If low-cost and short-time investigations are conducted before large-scale engine test, development of devices becomes more effective. This paper describes a new facility to evaluate both noise reduction and aerodynamic performance by small-scale test. A small model jet engine is used to generate hot jet.

    CiNii

  • S084011 A Gas Engine Operation at Variable Engine Speeds in the Energy Network

    ARAKAWA Hiroki, YAMASAKI Yudai, KANEKO Shigehiko

    Mechanical Engineering Congress, Japan   2013   "S084011 - 1"-"S084011-4"  2013.09

     View Summary

    This study investigated effects of variable engine speeds operation of gas engines in the energy network. The operation of variable engine speeds increases the system efficiency because the efficiency of gas engines increases in case the output of gas engines is small. In this study, the operation of gas engines was examined by a simulation. This simulation was subject to two types of engines: naturally aspirated gas engines and turbocharged gas engines. This operation changes engine speeds by the use of the output of renewable energy. The output of the renewable energy was substituted for sine waves. The result of this study shows that a rise of efficiency by variable engine speeds is relevant to the rated power of gas engines or the frequency and the amplitude of natural energy. A performance of the gas engine to suppress the fluctuations is irrelevant to the sampling span of calculation the engine speeds. On the other hands, the algorithm of this operation requires improvements.

    CiNii

  • S084012 A Gas Engine Operation at Variable Equivalence Ratio in the Energy Network

    SHIMIZU Fumiya, YAMASAKI Yudai, KANEKO Shigehiko

    Mechanical Engineering Congress, Japan   2013   "S084012 - 1"-"S084012-4"  2013.09

     View Summary

    When a Micro-Grid is disconnected from power system and operated under islanding condition, it is considered that there are rapid load fluctuations. In order to increase quantity of compensation for the power fluctuation with gas engines from the viewpoint of costs and service life of power sources, this paper presents a gas engine operation at variable equivalence ratio based on the engine load change. The engine control methods were constructed and the efficacy was evaluated by means of engine dynamic simulation. As a result, it was shown that the load following capability of engines is enhanced by variable equivalence ratio control.

    CiNii

  • S084023 Optimization of the Dispersed Power Supply in a Energy Network system by the Genetic Algorithm

    MACHEDA Riku, YAMASAKI Yudai, KANEKO Shigehiko

    Mechanical Engineering Congress, Japan   2013   "S084023 - 1"-"S084023-4"  2013.09

     View Summary

    In this study ,the objective of this study is the optimization of microgrid. composed of the demand, PV, gas engine and storage batteries. To reach this goal, we search for the best combination of the number of gas engine and a capacity of a storage battery by Genetic Algorithm. Genetic Algorithm is a method of optimization and simulates law of inheritance. This system is simulated by using MATLAB/Simulink. And using this, an approximation is led. Using this approximation, power cost of this system and system efficiency are calculated. And from these values, the best combination of the number of gas engine and a capacity of a storage battery is decided by Genetic Algorithm. In this study, the combinations which can be optical solutions is found. But, at the same time, the combinations which are not supposed to be optical solutions are also selected. Therefore, there is room for improvement on this system.

    CiNii

  • 4-2-1-604 Prediction of the Elastoaerodynamic Behavior of Compliant Foil Thrust Bearing Using a New Bump Foil Model

    GAD Abdelrasoul M., KANEKO Shigehiko

    Dynamics and Design Conference : D & D   2013   "604 - 1"-"604-10"  2013.08

     View Summary

    Accurate modeling of the compliant structure in gas foil thrust bearings is the key issue for predicting their Elastoaerodynamic performance. Hence, at the first part of this paper, a new structural stiffness model for the compliant structure in foil gas bearings is introduced. The model overcomes the shortcomings of previous analytical models and investigates the possibility that the flat segment between bumps, in bump foil strip, may deflect laterally and separate from the rigid bearing surface. Also, the interaction between bumps in the bump foil strip, the friction at bump foil/top foil interface, and the friction at bump foil/rigid bearing interface are considered. The performance of the introduced analytical model with four different load distributions was analyzed and compared with previous numerical and analytical models so as to check the validity and flexibility of the presented model. In the second part of this paper, the introduced bump foil model is coupled to the compressible Reynolds equation to investigate the Elastoaerodynamic performance of Generation II gas foil thrust bearing. The numerical simulations of the coupled fluid-structure interactions revealed the fact that the foil thrust bearings share many features with their rigid bearings counterpart and it was found that the load carrying capacity of foil thrust bearings increases nonlinearly with the rotation speed. Also, the effect of ramp height on the load carrying capacity and friction torque were investigated.

    CiNii

  • J-4-1-618 Study on the Dynamic Characteristics of the Balance Piston

    SUGIYAMA Takayuki, KANEKO Shigehiko

    Dynamics and Design Conference : D & D   2013   "618 - 1"-"618-10"  2013.08

     View Summary

    Axial self-excited vibration may be induced in a rocket turbopump by fluid with a tangential velocity component that flows into the balance piston. To avoid such vibration, knowledge of the dynamic characteristics of fluid force induced by swirling leakage flow is required. In this research, the effect of the position of the balance piston, swirl strength at the inlet of balance piston and outlet pressure fluctuation on the added fluid force coefficients is investigated by using the bulk flow model. As a result, in the case that the orifices are the same gap width, without swirling at the inlet of balance piston, the added stiffness becomes negative because of the variation of the relative velocity in orifice 1. The effect of the outlet pressure fluctuation on the added fluid force coefficients depends on the phase of the outlet pressure fluctuation for gap width fluctuation, and the negative damping and stiffness may arise in the particular phase.

    CiNii

  • Flow-Induced Vibrations: Classifications and Lessons from Practical Experiences: Second Edition

    Shigehiko Kaneko, Tomomichi Nakamura, Fumio Inada, Minoru Kato, Kunihiko Ishihara, Takashi Nishihara, Njuki W. Mureithi, Mikael A. Langthje

    Flow-Induced Vibrations: Classifications and Lessons from Practical Experiences: Second Edition     1 - 410  2013

    Other  

     View Summary

    In many plants, vibration and noise problems occur due to fluid flow, which can greatly disrupt smooth plant operations. These flow-related phenomena are called flow-induced vibration. This book explains how and why such vibrations happen and provides hints and tips on how to avoid them in future plant design. The world-leading author team doesn't assume prior knowledge of mathematical methods and provides the reader with information on the basics of modeling. The book includes several practical examples and thorough explanations of the structure, the evaluation method and the mechanisms to aid understanding of flow-induced vibrations. Helps ensure smooth plant operations Explains the structure, evaluation method and mechanisms Shows how to avoid vibrations in future plant design. © 2014 Elsevier Ltd All rights reserved.

    DOI

  • 1DCAEのための機械力学

    金子成彦

    日本機械学会講習会教材   No.13 ( 75 ) 63 - 69  2013

  • 優れた技術者の育成に向けて

    金子成彦, 小畑秀文, 小林孝

    日本機械学会誌   Vol.116 ( No.1130 ) 3 - 10  2013

  • Passing Down the Lessons Learned from the Great Earthquake and the Nuclear Plant Accident to the Generations

    KANEKO Shigehiko

    Journal of the Japan Society of Mechanical Engineers   Vol.116 ( No.1130 ) 1 - 2  2013

    CiNii

  • 708 Biomass Gas Engine Control Based on Crank Shaft Torque

    YAMASAKI Yudai, TSUDA Kenji, KANEKO Shigehiko

    Dynamics & Design Conference   2012   "708 - 1"-"708-7"  2012.09

     View Summary

    Internal combustion engines are required to use various fuels. A conventional MAP based engine control system is not suitable for achieving stable operation and high thermal efficient operation for various fuels. Authors have been developing the engine control algorithm to realize fuel flexibility by employing experimental rules and a closed loop control using in-cylinder gas pressure. In this study, in order to improve fuel flexibility of engine control algorithm and to confirm the experimental rules, availability of calculation results with elementary reactions for the algorithm is investigated. Availability of instant crank shaft torque for a feedback sensor is also investigated. The result shows that the modified engine control system employing laminar burning velocities calculated from elementary reactions and the torque feedback loop can keep stable operation when fuel lower heating value varies during engine operation.

    CiNii

  • G070021 Ignition and Combustion in Dual Fuel Engine using biomass resources

    Fujiwara Naoto, Noguchi Yuhei, Yamasaki Yudai, Kaneko Shigehiko

    Mechanical Engineering Congress, Japan   2012   "G070021 - 1"-"G070021-4"  2012.09

     View Summary

    In this study, effects of gas energy ratio and fuel composition of biomass gas on the ignition and combustion in dual fuel engine using biomass gas are researched experimentally. Dual fuel engine is a reciprocating engine to use both gaseous fuel produced from biomass and liquid fuel to assist the ignition and combustion of gaseous fuel. Liquid fuel injected to a combustion chamber is firstly ignited and can stably ignite pre-mixture of biomass gas and air. Simulated biomass gases consisting of H_2, CH_4, CO, C0_2 and N_2 were used and diesel oil was also used. The result shows that as the gas energy ratio increases, the thermal efficiency decreases and the amount of NO_x in exhaust gas reduces. The higher hydrogen ratio of biomass gas achieves the higher thermal efficiency, the larger amount of the NO_x in exhaust gas and operates an engine stably.

    CiNii

  • G080014 The Method of Gas Engine Operation for Controlling Renewable Energy

    USHIJIMA Kota, MINAMI Katsutoshi, NOGUCHI Yuhei, YAMASAKI Yudai, KANEKO Shigehiko

    Mechanical Engineering Congress, Japan   2012   "G080014 - 1"-"G080014-5"  2012.09

     View Summary

    These days, renewable energies attract world's attention. However, renewable energies, such as photovoltaic generation (PV), have unstable outputs. Gas engines (GE) is able to be used to compensate renewable energies. In this study, more efficient operation method was introduced. This method using GE with variable engine speeds showed great results in efficiency and ability to control larger PV. To confirm this variable engine speed method is effectual, we simulated the ability to control PV using discrete event engine model (DEM) and mean value engine model (MVM). These two models are able to consider fire conditions by used in combination. In addition, we functionalized loss toque by multiple regression analysis to ensure the efficacy of variable engine speed method. Finally, variable engine speed method showed the ability to control 0.2kW larger PV and contribution to about 8% more efficient system. In conclusion, variable engine speed method is the valid method for more efficient operation in compensating renewable energies.

    CiNii

  • G070024 Influence of Inhomogeneity of Pre-mixture Noise and Vibration from HCCI engine

    FUJ1WARA Shinnosuke, YAMASAKI Yudai, KANEKO Shigehiko

    Mechanical Engineering Congress, Japan   2012   "G070024 - 1"-"G070024-4"  2012.09

     View Summary

    Homogeneous Charge Compression Ignition (HCCI) engine is a one of the technics to raise a thermal efficiency of internal combustion engines. HCCI engine have noise and vibration problems. In this paper, inhomogeneity of pre-mixed gas is used to reduce noise and vibrations. In this paper, difference of fuel mixture point makes inhomogeneity of pre-mixed gas. Fuels which do not pass static-mixer and mix with air just before cylinder do not diffuse and make inhomogeneity of pre-mixed gas. For an index of inhomogeneity of pre-mixed gas, R_<f2> was defined as a proportion of fuel mixed just before cylinder to all fuel. This paper presents how reductions of inhomogeneity of pre-mixed gas change when engine output and engine speed change. Reductions of noise and vibration level are difference of level between R_<f2>=0% and R_<f2>=100%. When engine output increased, frequency where inhomogeneity of pre-mixed gas reduce noise level and vibration level shifted in higher frequency and reduction of vibration level increased. When engine speed increased, reductions of noise and vibration level increased. Only on 1200rpm, reductions of noise level were observed in lower than 50Hz.

    CiNii

  • F211 Exhaust gas characteristic and cost evaluation of gas engines compensating for power fluctuation of renewable energy

    MINAMI Katsutoshi, YAMASAKI Yudai, KANEKO Shigehiko, USHIJIMA Kota

    National Symposium on Power and Energy Systems   2012 ( 17 ) 433 - 436  2012.06

     View Summary

    To utilize photovoltaic power generation (PV), the compensation for power fluctuation is necessary since the fluctuation has a bad influence on electric power system. Therefore, micro grid using several kinds of decentralized generation plants is considered to be a good solution. In this paper, the feasibility of gas engines to compensate for the PV fluctuation is investigated from the viewpoint of exhaust gas NOx, and power generation cost by simulation. As for NOx, the amount of NOx increases as the output of a gas engine fluctuates, but this increase on NOx hardly has a problem in micro grid. As for power cost, it can be decreased by combining battery and a few kinds of gas engines. As a result, gas engines can be used in micro grid as decentralized generation plants.

    CiNii

  • WG3 : Ways of Suitably Explaining Engineering to Society and The Fostering of Mechanical Engineers Who Can Take on This Role

    KANEKO Shigehiko

    Journal of the Japan Society of Mechanical Engineers   115 ( 1123 ) 369 - 370  2012.06

    CiNii

  • 学会間の協働で果たそう次世代の研究者・技術者の育成

    金子成彦

    ロボット学会誌   Vol.30 ( No.10 ) 938  2012

  • 安寧な社会構築に向けてのこれからの学会の役割

    金子成彦

    日本原子力学会誌   Vol.54 ( No.9 ) 565  2012

  • 学会間の共創関係の構築を目指して

    金子成彦

    低温工学   Vol.47 ( No.5 ) 267  2012

  • Aiming for a Society that Gains Trust of the Public

    Shigehiko Kaneko

    JSME News   Vol.23 ( No.1 )  2012

  • G080023 Effects of Fuel Composition of Biomass Gas on Ion Current of Burner Flame

    ARAI Taichi, YAMASAKI Yudai, KANEKO Shigehiko

    Mechanical Engineering Congress, Japan   2011   "G080023 - 1"-"G080023-3"  2011.09

     View Summary

    In this study, effects of fuel composition of biomass gas on the ion current of burner flame were researched to clarify feasibility of ion current probe method for biomass gas flame. A mock biomass gases consisting of H2, CH4, CO, CO_2 and N2 were used in this study. As a result, it was showed that the ion current are not detected when CH4 are not included in the fuel. It was also showed that the increase of the ratio of CH4 or H2 content makes the ion current value increase, the increase of the ratio of CO_2 makes the ion current value decrease and the increase of the ratio of CO doesn't change the ion current value. This suggests that the change of the composition of biomass gas can be detected by the ion current probe method when CH4 is included in the fuel. Meanwhile, effects on ion current value of each gas flow per unit flame surface were similar to the effects of the ratio of each gas contents.

    CiNii

  • S201022 Students Education Program to Cultivate Literacy and Competency : Project Based Learning

    YOKONO Yasuyuki, KANEKO Shigehiko, MITSUISHI Mamoru

    Mechanical Engineering Congress, Japan   2011   "S201022 - 1"-"S201022-3"  2011.09

     View Summary

    The program aims to cultivate internationally competitive young researchers equipped with Fundamental attainment (mathematics, physics, chemistry and biology, and fundamental social sciences), Specialized knowledge (mechanical dynamics, mechanics of materials, hydrodynamics, thermodynamics, design engineering, manufacturing engineering and material engineering, and bird's-eye view knowledge on technology, society and the environment), Literacy (Language, information literacy, technological literacy and knowledge of the law) and Competency (Creativity, problem identification and solution, planning and execution, self-management, teamwork, leadership, sense of responsibility and sense of duty) to become future leaders in industry and academia. In Project Based Learning, student leaders and members identify themes in the industrial world and work out solutions under the guidance of an industrial project manager with the help of PDs and faculty facilitators.

    CiNii

  • 237 Numerical Simulation of Pulse Wave Propagation by Using One-Dimensional Arterial Tree Model

    KAWAI Yusuke, KANEKO Shigehiko, YASUDA Kazuma

    Dynamics and Design Conference : D & D   2011   44 - 44  2011.09

    CiNii

  • 234 Application of Gas Engines to Reduction of Power Fluctuation from Renewable Energy Generations

    KOBAYASHI Daigo, NOGUCHI Yuhei, YAMASAKI Yudai, KANEKO Shigehiko, USHIJIMA Kota

    Dynamics and Design Conference : D & D   2011   43 - 43  2011.09

    CiNii

  • 255 Axial Vibration Induced by Swirling Leakage Flow in the Turbopump

    TOMINAGA Yuta, KANEKO Shigehiko, SUGIYAMA Takayuki, TOMARU Hiroshi

    Dynamics and Design Conference : D & D   2011   48 - 48  2011.09

    CiNii

  • F102 HCCI Engine Fueled by Woody Biomass Gas and City Gas : Effect of Fuel Composition

    YAMASAKI Yudai, SHINODA Haruto, KANEKO Shigehiko

    National Symposium on Power and Energy Systems   2011 ( 16 ) 121 - 124  2011.06

     View Summary

    Autoignition and combustion characteristics of biomass gas and city gas 13A mixed fuels in a HCCI engine were investigated. A mock biomass gases consisting of H_2, CH_4, CO, N_2 and CO_2 were used assuming a wood pyrolysis gas. Using a modified gas engine with high compression ratio pistons and an inlet air heating system, experiments were carried out. Influences of mixing ratio of two fuels on heat release and indicated thermal efficiency were investigated. Higher city gas 13A content make maximum value of rate of heat release lower at a constant equivalence ratio and a constant IMEP. The mixed fuel obtains higher indicated thermal efficiency and lower cyclic variation than biomass gas or city gas 13A only. Effects of H_2 and CO contents of biomass gas were also investigated. It is clarified that H_2 has a big influence on rate of heat release but CO does not.

    CiNii

  • H213 Prediction about Suppression of Photovoltaic Power Generation Output Fluctuation using Gas Engine Dynamic Model

    NOGUCHI Yuhei, KOBAYASHI Daigo, YAMASAKI Yudai, KANEKO Shigehiko

    National Symposium on Power and Energy Systems   2011 ( 16 ) 503 - 506  2011.06

     View Summary

    Output fluctuation of photovoltaic power generation (PV) may have a negative impact on the electric power system such as excess variation of frequency when the amount of PV is increased. It is considered that storage batteries are installed to reduce output fluctuation of PV. However, storage battery has several faults in the economic point of view. In this paper, gas engines are utilized for suppressing output fluctuation of PV instead of storage battery. The ability of two types of existent gas engines (9.9kW and 350kW) is evaluated through dynamic simulation using engine dynamic model and actual PV output data. The results are as follows. 9.9kW gas engine can suppress the output fluctuation of 9.2kW PV and is used sufficiently instead of storage battery. Existent 350kW gas engine is not effective in the suppression of fluctuation. However 350kW gas engine has a potential ability to suppress the output fluctuation of 200kW PV by altering control system.

    CiNii

  • 着座センサにより得られた生体信号による飲酒検知

    金子成彦, 藤田悦則, 吉栖正生, 亀井勉, 村田幸治, 榎園正人

    自動車技術   Vol.66 ( No.2 ) 85 - 90  2011

  • Current Activities on Standardization in JSME

    KANEKO Shigehiko

    Journal of the Japan Society of Mechanical Engineers   113 ( 1103 ) 799 - 801  2010.10

    CiNii

  • 274 Combustion Oscillation in Micro Gas Turbine Combustor Fueled by Biomass Gas

    YAMAZAKI Daisuke, KANEKO Shigehiko, YAMASAKI Yudai

    Dynamics & Design Conference   2010   "274 - 1"-"274-6"  2010.09

     View Summary

    In this study, the combustion oscillation model which includes effects of various fuel components is presented. The model is based on ignition-delay model, which is proposed by Z. M. Ibrahim, but didn't consider the effect of fuel components to ignition-delay time. So, we evaluated the ignition-delay time by using CHEMKIN and considered the effects of various fuel components. As a result, H_2 tends to cause unstable thermo acoustic oscillations. And incombustible components, such as CO_2 and N_2 tend to suppress the combustion oscillation. In addition, we investigated the effect of 2-staged combustion and swirl number in MGT combustor.

    CiNii

  • 4A13 Development of fuel flexible engine control system

    YAMASAKI Yudai, NISHIZAWA Yukihiro, SUZUKI Yoshitaka, KANEKO Shigehiko

    Dynamics and Design Conference   2010   "4A13 - 1"-"4A13-13"  2010.08

     View Summary

    Biomass resources are drawing attention as alternative fuel for combating the energy crisis and for atmospheric environment protection. The small gas engine in a distributed power generation system is an efficient system to use it, because the biomass resource is stored in large area and its energy density is low. The composition of gas fuel generated from biomass is affected by the source type, the gasification method, and the gasifying condition. Then, the gas engine must be operated stably with high thermal efficiency in view of these fuel fluctuations. The authors aim to develop a small gas engine system for biomass gas by modifying the control system of a conventional spark ignition engine to absorb fuel fluctuation. Then, the original gas engine control algorithm was developed, which can define target values of equivalence ratio of premixture and ignition timing realizing high thermal efficiency in fuel combustion property by analyzing in-cylinder pressure data in real time. To develop a control algorithm, combustion experiments with various components fuels assuming component of real biomass gases like as fermentation gas and pyrolysis gas, were carried out. It was clarified that the relationship between dimensionless combustion duration and equivalence ratio is expressed in first order liner function regardless of fuel components. Indicated thermal efficiency can be also expressed by dimensionless combustion duration and volumetric efficiency. In addition, the relationship between combustion duration and MBT can also be expressed in first order function regardless of fuel components. Original engine control algorithm uses these relationships obtained from in-cylinder gas pressure in real time. Thus, biomass fueled gas engine system was developed by applying the algorithm to the automobile gasoline engine with hardware modifications of only fuel supply system and flywheel. The engine system was connected to a gasification plant using wood chip and operation test was carried out. As a result, the engine system could set optimum premixture condition and ignition timing, which realized stable and high thermal efficiency operation automatically.

    CiNii

  • B111 Engine operation system fueled by mixture of city gas and biogas

    KANNO Masanobu, YAMASAKI Yudai, KANEKO Shigehiko, SUZUKI Yoshitaka

    National Symposium on Power and Energy Systems   2010 ( 15 ) 67 - 70  2010.06

     View Summary

    In this paper, a engine control system was built up and confirmed that enables combustion of arbitrary mixture of biogas and city gas 13A with high generating efficiency and low NOx. Biogas is stoicheiometric mixing ratio, then city gas compensates. Mixture of city gas 13A and biogas varies in stoicheiometric mixing ratio. Existing engine system can only control premixture fuel flow, so that it can't tackle variety amount of heat generation. Therefore other throttle to control fuel flow was added. Wobbe Index was used as a fuel index. Using Wobbe Index revealed relationship that targeted oxygen concentration in emission is conducted from generating efficiency and NOx. On the basis of these experiments, we have developed feed back control systems from oxygen concentration in emission. In a practice run, this control system could deal with variation of stoicheiometric mixing ratio or load.

    CiNii

  • 11913 Ignition and Combustion in HCCI Engine Fueled by Biomass and City Gas

    MIZUNO Saori, YAMASAKI Yudai, KANEKO Shigehiko

      2010 ( 16 ) 89 - 90  2010.03

     View Summary

    High intake temperature is required in HCCI combustion fueled by natural gas owing to its large amount of CH_4, which auto ignition temperature is high. On the other hand, biomass gas, which consists of H_2, enables HCCI combustion to start in lower temperature. In this study, the influence of mixture of biomass gas and city gas refined by natural gas was investigated by experiment and calculation of chemical reactions. It was suggested that the decrease in ratio of 13A in mixing fuel caused auto ignition temperature to lower and required intake temperature to reduce.

    CiNii

  • 流体関連振動の考え方とメカニズム

    金子成彦

    日本機械学会講習会教材   No.10 ( 125 ) 1 - 8  2010

  • 日本機械学会における標準事業活動

    金子成彦

    日本機械学会誌   Vol.113   31 - 33  2010

  • A-5 Development of MGT fueled by low calorific gas

    KANEKO Shigehiko

      ( 37 ) 37 - 41  2009.10

     View Summary

    A two-axis, recuperated cycle micro-gas turbine (MGT) system for biomass gas is developed. The rated specifications of the MGT are as follows, pressure ratio of 2.7, turbine inlet temperature of 1120K, and output power of 5kW. The system consists of three components: the MGT power-generating system, control system and mock biomass gas supply system. Since the gaseous fuel converted from biomass has a low heat quantity, the combustor is designed to achieve both high combustion efficiency and low NOx emission for lower calorific fuel. In the combustor, a stable tubular flame combustion of city gas in the first stage supplies burned gas, which has enthalpy and activated radicals, to the second stage and enables stable ignition and combustion of biomass gas and air premixture. In addition, because the gas composition of biomass gas is also affected by the sources, the gasification method, and the gasifying condition, the system controller is required to absorb fuel fluctuation while meeting the demanded output. Hence, the H infinity algorithm is employed as a system controller because of its robustness against disturbances from the unpredictable fuel component fluctuation. Using this MGT system, an operation test was carried out with mock biomass gases. The rotational speed of the power turbine could be kept almost constant with both mock fermentation gas and pyrolysis gas as the second-stage fuel, and NOx emission was 50ppm when load was increased to a rated power of 5kW.

    CiNii

  • A33 Development of State Estimation Technology for Driver by Sensor of Unconstrained Type

    MAEDA Shinichiro, KOJIMA Shigeyuki, OGURA Yumi, FUJITA Etsunori, MURATA Kohji, KAMEI Tsutomu, KANEKO Shigehiko, YOSHIZUMI Masao

    Dynamics and Design Conference   2009 ( 11 ) 403 - 407  2009.09

     View Summary

    We developed biological signal sensing system of a driver based on the vibration input through air pack sensor to detect drowsiness of the vehicle driver. To realize this system, a sensor seat capable of measuring pulse wave and detecting autonomous nerve activity change is developed. To show the effectiveness of the proposed system, we compared chronological average frequency pattern of pulse wave obtained from both finger plethysmogram and the air pack sensor pulse wave and investigated the possibility of sleep prediction detection and sleep point detection.

    CiNii

  • A28 Dynamic Model of Gas Engine

    KANNO Masanobu, AKAISHI Takayuki, YAMASAKI Yudai, KANEKO Shigehiko

    Dynamics and Design Conference   2009 ( 11 ) 381 - 386  2009.09

     View Summary

    To realize stable operation of micro grid, it is necessary for gas engines to compensate the load changes due to demand variation as well as the power provided by other renewable energy device. It is important to grasp the load following capability of gas engines because gas engines can be controlled in response to the demands. In addition, because of the variability of component of biomass gas which depending on the operating condition of gasification or raw material in case of supplying biomass gas to gas engine, dynamic characteristics against the fuel component variation must be investigated. In this study, newly developed dynamic simulation model of turbocharged gas engine is proposed and used to simulate transient operation. The constructed simulation model consists of Discrete Event Turbocharged Model (DETM) and Mean Value Turbocharged Model (MVTM). DETM calculates completely combustion state in gas engines and MVTM calculates the transient response of gas engines in a short time. The comparison calculated result with experiment result indicates the utility of constructed model. As a result, the combination DETM and MVTM can calculate the transient response of turbocharged gas engine sufficiently in a short time.

    CiNii

  • A37 Development of the sleep state analysis algorithm by the pulse wave time series analysis

    OCHIAI Naoki, NOBUHIRO Yoshika, OGURA Yumi, FUJITA Etsunori, MURATA Kohji, KAMEI Tsutomu, TSUJI Toshio, KANEKO Shigehiko, YOSHIZUMI Masao

    Dynamics and Design Conference   2009 ( 11 ) 420 - 423  2009.09

     View Summary

    To judge a difference and sleep depth of the quality in the sleep state and relations of the quality of the sleep, we developed biological signal sensing system of the person who sleeps based on the vibration input through unconstraint air pack sensor to detect sleep state. In this study, we collected a biological signal with an unconstraint sensor and inspected whether judging quality of the sleep by measuring the state of a sleeping person.

    CiNii

  • 557 Dynamic Evaluation of Arterial Sclerosis Indicator Based on Arterial Pusle Wave

    KAWAI Yusuke, HODOSHIMA Yuzo, KANEKO Shigehiko

    Dynamics & Design Conference   2009   "557 - 1"-"557-6"  2009.08

     View Summary

    In order to prevent the brain blood vessel system disease, recently, arteriosclerosis index of the pulse wave capable of examining the degree of the arteriosclerosis invasively and safely is noticed. This index second derivative of pulse wave with time is called the acceleration pulse wave and is started to use in the clinical feild, however, scientific verification is not yet made. In this study, the usefulness of the acceleration pulse wave is clarified by experiment and numerical simulations based on mathematical modeling.

    CiNii

  • A34 Development of non-constraint monitoring technology to detect drink-driving

    KOJIMA Shigeyuki, MAEDA Shinitirou, OGURA Yumi, FUJITA Etsunori, MURATA Kohji, KAMEI Tsutomu, TSUJI Toshio, KANEKO Shigehiko, YOSHIZUMI Masao

    Dynamics and Design Conference     408 - 411  2009

     View Summary

    Systems capable of monitoring the biological condition of a driver and issuing warnings during instances of drowsiness have recently been studied. Moreover, many researchers have reported that biosignals, such as brain waves, pulsation waves, and heart beat are different between people who have and have not consumed alcohol. Currently, we are developing a noninvasive system to detect individuals driving under the influence of alcohol by measuring biosignals. In this paper, a new algorithm to distinguish between the normal and intoxicated state of a person is proposed as the basic theory of the sensing system.

    CiNii

  • C201 Dynamic Characteristic of Gas Engine in Micro grid

    KANNO Masanobu, AKAISHI Takayuki, YAMASAKI Yudai, KANEKO Shigehiko

    National Symposium on Power and Energy Systems     307 - 310  2009

     View Summary

    To realize stable operation of micro grid, it is necessary for gas engines to compensate the load changes due to demand variation as well as the power provided by other renewable energy device. It is important to grasp the load following capability of gas engines because gas engines can be controlled in response to the demands, hi addition, because of the variability of component of biomass gas which depending on the operating condition of gasification or raw material in case of supplying biomass gas to gas engine, dynamic characteristics against the fuel component variation must be investigated. In this study, newly developed dynamic simulation model of gas engine is proposed and used to simulate transient operation. With this model, the influence of various load changes and fuels on the transient response of gas engine is clarified. As a result, frequency of the load change compared with amplitude greatly influences on the transient response. The load following capability of gas engine is worse when fuel is methane fermentation gas than city gas under the condition whose frequency of the load change is larger than O.1Hz.

    CiNii

  • 1E3-1 Investigation on the relation between the position and the accuracy of air pack sensor equipped with a seat for measuring pulse wave

    KANEKO Shigehiko, BABA Tomotsugu

    The JSME Symposium on Welfare Engineering     71 - 74  2009

     View Summary

    We have been working on a project on "Development of the drive dozing prevention technique using the sensor installed in the seat for detecting the driver's condition" for about five years. As a non-invasive sensor equipped with a drivers' seat for passenger cars, we developed so called "air pack sensor" which is expected to an alternative of finger plethysmogram. In the previous paper, mathematical modeling for air pack sensor was conducted and the method for extracting the heart rate signal from the signal obtained by the air pack sensor was proposed. In this paper, we mainly investigated the relation between the effect of the sensor position and the accuracy.

    CiNii

  • Development of Vibration Control Device and Shaker using Magneto-spring(Development Technology of Next Generation Applied Electromagnetic Machinery I)

    KUWATA Katsuyoshi, KOJIMA Shigeyuki, OSHIMO Hiroki, SUGIMOTO Eiji, OGURA Yumi, FUJITA Etsunori, ENOKIZONO Masato, KANEKO Shigehiko, Katsuyoshi KUWATA, Shigeyuki KOJIMA, Hiroki OSHIMO, Eiji SUGIMOTO, Yumi OGURA, Etsunori FUJITA, Masato ENOKIZONO, Shigehiko KANEKO

    Journal of the Japan Society of Applied Electromagnetics and Mechanics   Vol.17 ( No.4 ) 557 - 564  2009

    CiNii

  • Holonic Energy Systems and Utilization of Gas Engines

    KANEKO Shigehiko

    JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN   Vo.44 ( No.5 ) 25 - 30  2009

    DOI CiNii

  • 239 Pressure Pulsations in the drum excited by a centrifugal compressor

    HAYASHI Itsuro, KANEKO Shigehiko

    Dynamics & Design Conference   2008   "239 - 1"-"239-6"  2008.09

     View Summary

    The characteristics of the pressure pulsations in the drum connected to piping system excited by centrifugal compressors or blowers at blade-passing frequency were investigated. In this study, the equivalent resistance of a compressor and that of piping systems were introduced to the three dimensional calculation model, so that the non-linear damping proportional to velocity squared in the system is properly incorporated. As a result, the pressure response in the drum as well as pipe can be well evaluated by this model. Furthermore, the effect of the acoustic dynamic absorber on the pressure pulsations in the pipe and drum is evaluated.

    CiNii

  • 236 Analysis of propagation inside collapsible tube based on KdV equation

    Hodoshima Yuzo, Ye Chang, Kaneko Shigehiko

    Dynamics & Design Conference   2008   "236 - 1"-"236-4"  2008.09

     View Summary

    In our research, we have analyzed a propagation of pulse inside a collapsible tube, which could be seen inside an artery of human body. Flow inside collapsible tube is basically analyzed using continuity equation, NS equation and equilibrium of force on tube walls. In the process of analytical solution with perturbation method, these equations could be transferred into a KdV equation, which is known for producing solitary wave. Analytic solution and its form are derived.

    CiNii

  • C104 Ignition and Combustion Characteristics of Biomass Gas in a HCCI Engine

    YAMASAKI Yudai, KANNO Masanobu, NISHIZAWA Yukihiro, KANEKO Shigehiko, KANEKO Shigehiko

    National Symposium on Power and Energy Systems   2008 ( 13 ) 113 - 116  2008.06

     View Summary

    In this study, ignition and combustion characteristics of biomass gas in a HCCI engine was investigated experimentally. Imitation biomass gas consisted of H_2 CH_4, CO, N_2 and CO_2, was used assuming wood pyrolysis gas. Test engine was a 3cylinder 1.6L gas engine by modifying compression ratio from 9.5 to 24 and equipping intake air heating system. Experiments were carried out by changing fuel composition and fuel/air mixture condition. As results, knocking was not occurred at higher equivalence ratio 0.4, because the fuel had much dilution components. Indicated thermal efficiency was achieved 47%. It was also clarified that H_2 advanced ignition timing but CO retarded it.

    CiNii

  • C106 Biomass Power Generation by Micro Gas Turbine Generator System Employing Two Stages Combustion

    IIJIMA Kazuki, OKADA Yukinori, KANEKO Shigehiko, YAMASAKI Yudai

    National Symposium on Power and Energy Systems   2008 ( 13 ) 121 - 122  2008.06

     View Summary

    Micro Gas Turbine system is required to be stable for unpredictable fuel component fluctuation while maintaining the control performance. By using supply system of generating simulated biomass gases, experiments of operating biomass gases were realized. We used the way called two-stage combustion in order to achieve low NOx combustion. And we used two kinds of controllers, one is depending on H infinity optical control theory and the other is depending on PID control theory. After confirming the stability of both the controller and the system by the simulation, it was equipped to the Micro Gas Turbine experiment system. This development made the Micro Gas Turbine stable against finer fuel control, and this realized higher controllability under fluctuating low calorific gas fuel such as biomass gases.

    CiNii

  • C105 Development of gas engine with biomass gas by diversion of automotive engine

    NISHIZAWA Yukihiro, Yamazaki Daisuke, NAGATA Yuki, YAMASAKI Yudai, KANEKO Shigehiko

    National Symposium on Power and Energy Systems   2008 ( 13 ) 117 - 120  2008.06

     View Summary

    In order to utilize biomass resources effectively, one of the effective methods is considered to be the diversion of the automotive engine as a small-distributed generation system due to its low cost. Therefore, it is necessary to understand the combustion characteristics of the biomass gas because the composition of the biomass gas generated from gasifying biomass resources fluctuates with the gasifying method and the operational condition of gasifying plant. So, an investigation on the combustion characteristics was carried out by a simulated biomass gas. In addition, operational tests were also conducted using real biomass gas that was supplied by gasifying plant. Air-fuel ratio was controlled by twin throttles for air and fuel on this occasion to realize stable operation.

    CiNii

  • Automotive Seats for Preventing Doze in Driving

    KANEKO Shigehiko

    Journal of the Japan Society of Mechanical Engineers   111 ( 1075 ) 500 - 501  2008.06

    CiNii

  • (1)小型バイオマスエネルギー変換システムを題材としたPBL方式による計測制御教育(教育,日本機械学会賞〔2007年度(平成19年度)審査経過報告〕)

    金子 成彦, 渡邉 辰郎, 山崎 由大

    日本機械学會誌   111 ( 1074 ) 393 - 393  2008.05

    CiNii

  • 21108 Development of small gas engine with biomass gas : Influence of H_2 and CO on combustion

    NISHIZAWA Yukihiro, NAGATA Yuki, YAMASAKI Yudai, KANEKO Shigehiko

      2008 ( 14 ) 277 - 278  2008.03

     View Summary

    The composition of biomass gas generated by gasifying biomass resources fluctuates with gasifying method and operational condition of gasifying plant. The main combustible component of the biomass gas is CH_4, H_2 and CO_2 and the main noncombustible component is N_2 and CO_2. The biomass gas is low calorific fuel, because the ratio of noncombustible components in fuel is high. So, it is expected that the stability of combustion and ignition becomes worse. That is why, in order to investigate the difference of combustion characteristics by the composition of biomass gas, the experiment investigations were carried out by using simulated biomass gases, whose composition of H_2 and CO varies. As the increase of H_2/CO_2, the combustion stability increased and indicated thermal efficiency also rises due to shortage of combustion duration.

    CiNii

  • 2C1-2 Modelling of air pack sensor equipped with a seat for measuring pulse wave

    KANEKO Shigehiko, MIYOSHI Ryusuke

    The JSME Symposium on Welfare Engineering     185 - 188  2008

     View Summary

    We have been working on a project on "Development of the drive dozing prevention technique using the sensor installed in the seat for detecting the driver's condition" for about five years. As a non-invasive sensor equipped with a drivers' seat for passenger cars, we developed so called "air pack sensor" which is expected to an alternative of finger plethysmogram. In this paper, mathematical modeling for air pack sensor is explained in detail. In addition, the method for extracting the heart rate signal from the signal obtained by the air pack sensor is shown and the results are compared with the waveform obtained by finger plethysmogram.

    CiNii

  • 居眠り運転防止シート

    金子成彦

    日本機械学会誌   Vol.111 ( No.1075 ) 36 - 37  2008

  • 快適シート技術

    藤田悦則, 小島重行, 小倉由美, 村田幸治, 亀井 勉, 槌田雄二, 榎園正人, 緑川 洋一, 秋田昌憲, 金子成彦

    自動車技術   Vol.62 ( No.2 ) 33 - 41  2008

  • 入眠予兆検知システム車用シート開発事例

    藤田悦則, 小倉由美, 小島重行, 金子成彦

    日本設計工学会    2007.11

  • 817 Damping Characteristics of Pressure Pulsations in Piping Systems Induced by a Centrifugal Compressor

    HAYASHI Itsuro, KANEKO Shigehiko

    Dynamics & Design Conference   2007   "817 - 1"-"817-6"  2007.09

     View Summary

    Damping of pressure pulsations in piping systems excited by centrifugal compressors or blowers at blade-passing frequency dominates acoustic resonant characteristics. In this study, the relation between the resistance coefficient of the compressor and the operating point was investigated experimentally. As a result, the resistance coefficient of the compressor depends on the Reynolds number defined by the equivalent velocity of the pulsating flow. It is shown that the pressure pulsations in piping systems can be evaluated by one-dimensional wave model taking into account the damping characteristics of the compressor.

    CiNii

  • 816 Dynamic Lift on Access Arm for Hard Disk Drive : Effect of Incidence Distribution and Arm Position

    NISHIHARA Takashi, KANEKO Shigehiko, WATANABE Tatsuo

    Dynamics & Design Conference   2007   "816 - 1"-"816-6"  2007.09

     View Summary

    In order to study aerodynamic characteristics of an access arm equipped on hard disk drives, we proposed a new method of simulating high-speed air flow around an access arm by water flow with an enlarged arm model based on Reynolds number similitude. Flow visualization around the arm model and measurement of fluid dynamic force were conducted. In the experiments, a shear flow generator of honeycomb type was used to simulate velocity profile of flow between corotating disks. As a result, it was found that incidence profile has little effect on the dynamic lift of an access arm

    CiNii

  • OS3-9 Control Method of Biomass Micro Gas Turbine System

    Okada Yukinori, Kaneko Tomohiko, Yamasaki Yudai, Kaneko Shigehiko

    National Symposium on Power and Energy Systems   2007 ( 12 ) 319 - 324  2007.06

     View Summary

    Robust controller depends on H infinity optical control theory was designed and developed for a new Micro Gas Turbine capable of biomass gas. It was required for the system to be stable for unpredictable fuel components fluctuation while maintaining the control performance. The H infinity controller was designed based on the system identification and the weight functions determination. After confirming the stability of both the controller and the system by the simulation, it was equipped to the Micro Gas Turbine experiment system. It showed not only similar control performance than conventional 2 Degrees of Freedom PID controller, but also significantly higher robustness after the resolution of fuel flow controller was changed. This development made the Micro Gas Turbine stable against finer fuel control, and this realizes higher controllability under fluctuating low calorific gas fuel such as biomass gas.

    CiNii

  • マイクロガスタービンの研究開発と軸受技術 (特集 軸受技術)

    金子 成彦

    月刊トライボロジー   21 ( 4 ) 26 - 28  2007.04

    CiNii

  • 21619 Study of Gas Engine Transient Response

    YAMASAKI Yudai, TOMATSU Go, NAGATA Yuki, KANEKO Shigehiko

      2007 ( 13 ) 15 - 16  2007.03

     View Summary

    Micro grid energy system is consisted of various kind of electric generator (ex: wind power system that use natural energy, gas engine, storage battery and etc.). These devices are needed to be operated in line for the electricity demand change. Fuel composition also changes in assuming biomass use in micro grid. So, it is important to understand their transient response properties for designing and managing micro grid energy system. In this study, gas engine dynamic model was built to predict transient response and it was also investigated in experiment for existent gas engine. In addition, influence of combustion duration, which was affected by fuel property, on transient response was investigated by using engine dynamic model.

    CiNii

  • OS4-4 Simulation based on gas engine dynamic characteristics estimation

    NAGATA Yuki, TOMATSU Go, YAMASAKI Yudai, KANEKO Shigehiko

    National Symposium on Power and Energy Systems     175 - 180  2007

     View Summary

    To realize stable operation of micro grid, it is necessary for gas engines to compensate the load changes due to demand variation as well as the power provided by other renewable energy device. It is important to grasp the load following capability of gas engines because gas engines can be controlled in response to the demands. In addition, because of the variability of component of biomass gas which depending on the operating condition of gasification or raw material in case of supplying biomass gas to gas engine, dynamic characteristics against the fuel component variation must be investigated. In this study, newly developed dynamic simulation model of gas engine is proposed and used to simulate transient operation. With this model, the influence of several engine parameters on the transient response of gas engine was clarified. As a result, equivalence ratio, combustion duration and fuel calorie have relatively small influence on the transient response.

    CiNii

  • 小型ガスエンジンでのバイオマスガス利用に関する研究

    山崎由大, 金子成彦

    日本燃焼学会誌   Vol.49 ( No.150 ) 16 - 25  2007

  • マイクロガスタービンの研究開発と軸受技術

    金子成彦

    月刊トライボロジー   236   1 - 3  2007

  • B-12 Development of Flameless Combustor for Low-calorific Fuel : Investigation by Thermal-Fluid Analysis considering chemical reactions

    NAKASHIMA Yoshifumi, YAMASAKI Yudai, HAYASHI Shigeru, KANEKO Shigehiko

      ( 34 ) 203 - 208  2006.10

     View Summary

    This paper describes development of a compact Flameless Combustor for low-calorific fuel. In order to reduce the size of a combustor, CFD with chemical reactions analysis was adapted to the combustor developed previously in our laboratory, and the flow field and the reaction field were clarified. As the result, the following have been understood; The combustor is able to be minimized if burned gases from previous stage induces the latter stage combustion by utilizing the mixing zone more effectively; To strengthen the rotation of burned gases is effective in order to promote the mixing of burned gases and premixed gases. In addition, the fact that it was effective for swirling flame stabilization of the primary stage with the partition plate because cold air from latter stage could not flow into the primary stage was confirmed.

    CiNii

  • 342 Study on sleep prediction method before falling asleep

    KANEKO Shigehiko, SASAKI Yosuke, YAMASAKI Yudai

    Dynamics & Design Conference   2006   "342 - 1"-"342-4"  2006.08

     View Summary

    Chaotic analysis of pulse wave is paid attention as one of the sleep prediction technique to prevent traffic accident with drowsy driving. It is necessary for this method to verify assuredness and to reduce calculation time. The purpose of this study is to validate the evidence of this sleep prediction method by comparing the results by wavelet analysis of the heartbeat variation and/or the brain wave. As a result, it is found that the timing of sleep detecting signal obtained by chaotic analysis of pulse wave corresponds well to the emerging timing of HF component of the heartbeat signal.

    CiNii

  • 4-109 Launching new mechanical engineering experiment program with special emphasis on experience

    SAKAI Yoshio, KANEKO Shigehiko, WATANABE Tatsuo, YAMASAKI Yudai

      18   78 - 79  2006.07

    CiNii

  • OS4-1 Combustion characteristics of low-calorific gas fuel with small gas engine

    TOMATSU Go, FUJIKAWA Masaaki, YAMASAKI Yudai, KANEKO Shigehiko

    National Symposium on Power and Energy Systems   2006 ( 11 ) 109 - 114  2006.06

     View Summary

    In this study, the effect of gas fuel composition whose components are CH_4, N_2 and CO_2 on combustion was experimentally investigated to propose a small gas engine system for appropriate combustion with biomass gas fuel. As a result, longer combustion duration and cyclic variation of pressure profile with increasing dilution rate were observed. This trend was more apparent in CO_2 dilution than N_2. Therefore, we can conclude that not only dilution rate but also kind of chemical species influenced engine combustion. Subsequently, effect of spark timing on combustion was investigated. As increasing dilution rate, to advance spark timing is necessary to keep high thermal efficiency and low cyclic variation in gas engine operation.

    CiNii

  • OS9-3 Development of design method of combustor for low-calorific gas fuel based on flameless combustion analysis

    NAKASHIMA Yoshifumi, ADACHI Sadamasa, YAMASAKI Yudai, KANEKO Shigehiko

    National Symposium on Power and Energy Systems   2006 ( 11 ) 247 - 252  2006.06

     View Summary

    This paper describes the development of design methodology of combustor for low-calorific fuel. In order to achieve 99% or higher combustion efficiency and 10ppm or lower (at 15% O_2) NO_x emissions with biomass gas, Flameless Combustion was applied to the Micro Gas Turbine combustor. Flameless Combustion is happened when premix gases is injected into the burned gas generated in the first-stage combustion zone, after auot-ignition of premixed gases break out. So combustion reaction advances even in ultra lean condition in which combustion reaction cannot in general. This paper addresses the comparison between the experiment and CHEMKIN analysis conducted for the developed combustor. The characteristic of ignition in Flameless Combustion is affected barely by the kind of fuels. Increase in the number of stages on flameless combustions can expand well-worked range of equivalence ratios.

    CiNii

  • 4-102 The mechanical engineering seminar on the theme of realization of a safe automatic automotive society : Development of the traffic accident prevention technology using a living body signal

    SAKAI Yoshio, KANEKO Shigehiko

      17   52 - 53  2005.09

    CiNii

  • B-1 Development of a micro gas turbine system for low-calorific value gas fuel

    Nakashima Yoshifumi, Mori Yuji, Kaneko Shigehiko, Watanabe Tatsuo, Yamasaki Yudai

      ( 33 ) 113 - 118  2005.09

     View Summary

    In this study, we have geared toward constructing a micro gas turbine generation system that uses low-calorific value gas obtained from biomass as fuel. As the composition of the gas obtained from biomass is dependent on the kind of resources and conversion methods, gas turbines should be able to operate with various kinds of fuel. The objective of this study is to construct an experiment installation for investigating the fuel composition influences to gas turbine performance and operation. The installation is composed of a micro gas turbine, a fuel supply system to generate low-calorific value gas with various compositions and a measurement control system. As a result of this study, it turns out that in only limited operating condition, the secondary fuel can be used due to a mismatch between the combustor design condition and actual operating condition.

    CiNii

  • 127 Performance Evaluation Study of Radial Foil Bearing Used for Small-Size and High-Speed Micro Gas Turbine

    MIYANO Yoshihiro, KANEKO Shigehiko, WATANABE Tatsuo

    Dynamics & Design Conference   2005   "127 - 1"-"127-6"  2005.08

     View Summary

    In this paper, the design process of radial foil bearings for the rotor manufactured from commercially available turbochargers is introduced. The radial bearing used here is composed of two elements; i.e. a housing and a multi wounded foil with projections of hemisphere on one side in the adequate interval. The bearing radial clearance between the rotor surface and the foil is 20μ m. In the experiment, we measured rotational speed and vibrations of the rotor in the radial and axial directions. Subsequently, analyses for the evaluation of first natural frequencies corresponding to lateral, conical and the first bending mode were done. Finally, the method for predicting the onset whirl rotational speed based on simple measurement is explained.

    CiNii

  • 111 Characteristic of A Root Blower as A Pulsation Countermeasure Device in A Low Pressure Gas Supplying Pipe

    YAMASAKI Yudai, YANAGISAWA Kazumasa, WATANABE Tatsuo, KANEKO Shigehiko

    Dynamics & Design Conference   2005   "111 - 1"-"111-6"  2005.08

     View Summary

    In this study, the root blower was applied to the low pressure gas supplying pipe with a reciprocating compressor to reduce the pulsation. It was clarified that the root blower reduced the amplitude of pressure more than the tank with same volume, and did not reduce flow. The reduction mechanism of the root blower is thought that it absorbs the energy from pulsation as fluid resistance. Then, the energy turns the blade without the external power and fluid is transported. It is concluded that the root blower is better than a orifice and a tank as the pulsation reduction device.

    CiNii

  • フォイル軸受で支持されたパームトップサイズマイクロガスタービン回転軸系の試作と動特性評価法の提案

    金子成彦, 宮野芳寛, 森 祐司, 渡邉辰郎

    日本エネルギー学会誌   Vol.84 ( No.3 ) 227 - 234  2005

  • パームトップガスタービン軸系の固有振動数解析

    金子成彦, 森 祐司

    日本ガスタービン学会誌   Vol.33 ( No.1 ) 25 - 31  2005

  • Recent Trend in Gas Bearing Technology

    KANEKO Shigehiko

    Journal of Japanese Society of Tribologists   49 ( 11 ) 833 - 838  2004.11

    CiNii

  • Development of a Two-stage Combustor for MGT with Premixed Gas Injected into the Burned Gas from a Tubular Flame

    IWAMOTO Atsushi, KANEKO Tomohiko, YAMADA Hideshi, HAYASHI Shigeru, KANEKO Shigehiko

      32   71 - 76  2004.10

     View Summary

    This paper describes the result concerning the design method and the actual performance of a combustor for the micro gas turbine investigated as a part of the biomass resources utilization project. To obtain stable flame of biomass gases, we adopted lean-lean, two-stage premix combustion in which injecting premixed gas into the burned gas of tubular flame. The injection worked well at 0.4 secondary equivalence ratio and the first model successfully achieved 99% combustion efficiency and 17.6ppm NOx emissions (at 15% O_2). However, we found that the tubular flame can be easily blown off by the injection because the injection disturbs the recirculation zone of the bumed gas of the tubular flame. To broaden the range with high efficiency and low NOx emissions, the injection flow should be optimized so that the tubular flame may be held in leaner side, and so that the mixing of the injected premix gas with the burned gas of the tubular flame may be more effective.

    CiNii

  • 132 Analysis of Magnetic Combined Damper Characteristics

    Takefuji Kazuhiro, Kaneko Shigehiko, Watanabe Tatsuo, Fujita Etsunori

    Dynamics & Design Conference   2004   "132 - 1"-"132-6"  2004.09

     View Summary

    Magnetic combined damper is a new damper composed by a set of coil spring, magnetic spring utilizing magnetic attracting force together with damping contributed by eddy current loss. Not like friction dampers, this new damper is basically non-contacting damper with many advantages such as robustness against aged deterioration and temperature fluctuations. Also it is anticipated to be an essential part in order to realize maintenance free machines under a wide variety of environment. However, in spite of the high demand, neither design methodology nor the method of analyzing static and dynamic characteristics is yet established. In this paper, firstly, we developed the model experimental apparatus and examined dynamic characteristics of magnetic combined damper. Secondly, we succeeded in deriving the method of calculating characteristics of the restoring force based on dimensions and material properties. Thirdly, we found a design method of dead band with interesting and useful characteristics.

    CiNii

  • (274)Thing making-education through manufacture of a soccer training machine

    SAKAI Yoshio, WATANABE Tatsuo, KANEKO Shigehiko

      16   543 - 544  2004.07

    CiNii

  • A method for calculating radial foil bearing characteristics used for small-size and high-speed micro gas turbine

    Kaneko Shigehiko, Miyano Yoshihiro, Kitazawa Susumu, Watanabe Tatsuo

    National Symposium on Power and Energy Systems     59 - 64  2004

     View Summary

    Generators with small gas turbines that generate less than 100kW are drawing attention as a power source of cogeneration systems. Dynamic pressure type air foil bearings are expected to serve as shaft bearings. The design that these bearing are simply designed, easy to produce and maintenance free without requiring lubrication, holds the key to miniaturization of micro-gas turbines. However, the details of such design guidelines have not been clarified though this technology is used in APC for aircraft units. In this study, in order to obtain design guidelines of foil bearing, in making the foil to be the discretion beam, the modeling of the foil was carried out. Taking the frictional forces of attachment part of the foil and the protrusion, etc. into consideration, static characteristic and dynamic characteristic were analyzed to examine performance and stability of the radial foil bearing.

    CiNii

  • 気体軸受の最新技術動向

    金子成彦

    トライボロジスト   Vol.49 ( No.11 ) 15 - 20  2004

  • マイクロガスタービン発電システムとトライボロジー技術

    金子成彦

    トライボロジスト   Vol.49 ( No.5 ) 397 - 402  2004

  • Wake Behavior and Fluid Dynamic Force of a Circular Cylinder Oscillating in Streamwise Direction

    NISHIHARA Takashi, KANEKO Shigehiko, WATANABE Tatsuo

      2003   320 - 320  2003.09

     View Summary

    Flow visualization around a circular cylinder oscillating in the streamwise direction in a cross flow as well as fluid force measurement was conducted in a water tunnel under the condition of low reduced velocity and small cylinder amplitude in order to investigate the mechanism of the flow-induced streamwise vibration. The relation between the vortices behavior and the fluid force is discussed based on the experimental results. Wake patterns are classified into five patterns depending on the reduced velocity and the cylinder amplitude.

    CiNii

  • Mechanism of temperature fluctuations observed in a micro cogeneration system

    Kaneko Shigehiko, Fukuyama Genne, Watanabe Tatsuo

      2003   327 - 327  2003.09

     View Summary

    Recently, research and development of micro co-generation system is conducted actively. However, few studies were reported on the combined thermal efficiency based on the actual data measured all through the year. In this paper, firstly, we report actual data based combined thermal efficiency evaluation of micro gas turbine centered micro co-generation system especially focused on ambient temperature effect. During the measurement we found temperature fluctuation of heat transfer medium under the condition that the ambient temperature is less than 28 degree Celsius. Then, secondly, we report the analysis of this phenomenon by formulating the relation of heat balance taking account of nonlinearity of valve characteristics.

    CiNii

  • 206 A New course for graduate laboratory aiming at skill improvement

    WATANABE Tatsuo, KANEKO Shigehiko, KAMATA Minoru

      15   619 - 622  2003.09

    CiNii

  • 192 Micro Gas Turbine Centered Introductory Engineering Education Course for Junior Student

    SAKAI Yoshio, WATANABE Tatsuo, KANEKO Shigehiko

      15   581 - 584  2003.09

    CiNii

  • Micro Cogeneration System Combined Thermal Efficiency Based on Measured Data

    Kaneko Shigehiko, Fukuyama Genne, Watanabe Tatsuo

    Symposium on Environmental Engineering   2003 ( 13 ) 444 - 447  2003.06

     View Summary

    Recently, research and development of micro gas turbine or fuel cell centered micro co-generation system is conducted actively. However, few studies were reported on the combined thermal efficiency based on the actual data measured all through the year. In this paper, we report actual data based combined thermal efficiency evaluation of micro gas turbine centered micro co-generation system especially focused on ambient temperature effect. Measurement was conducted at J-Power Chigasaki R&D Center where oil fueled Capstone 25Kw micro gas turbine was equipped as a central component. We calculated the combined thermal efficiency by counting total heat balance.

    CiNii

  • 変わり始めた大学教育

    金子成彦

    ガイドライン   No.11   22 - 25  2003

  • 東京大学超小型分散エネルギーシステムラボと5kWマイクロガスタービンの開発研究

    笠木伸英, 金子成彦, 鹿園直毅

    コジェネレーション   Vol.18 ( No.1 ) 28 - 32  2003

  • 小型分散エネルギーシステムと創造設計

    金子成彦

    機械の研究   Vol.55 ( No.1 ) 145 - 152  2003

  • Investigation on the mechanism of home use blood pressure meter

    nakamura Tateki, Kaneko Shigehiko, Watanabe Tatsuo

    The JSME Symposium on Welfare Engineering   2002 ( 2 ) 85 - 88  2002.11

    CiNii

  • 流れ方向に振動する円柱に作用する非定常抗力の特性

    西原 崇, 金子成彦

    電力中央研究所報告(平成14年11月)   U02012  2002.11

  • Small Size Distributed Energy Laboratory and PBL Educational Program

    KANEKO Shigehiko

    Journal of the Gas Turbine Society of Japan.   30 ( 5 ) 454 - 456  2002.09

    CiNii

  • Self-excited Oscillation of a Traveling Cable Excited by Annular Leakage Flow

    Kaneko Shigehiko, Ozaki Yuichi, Watanabe Tatsuo

      2002   122 - 122  2002.09

     View Summary

    This paper summarizes a case study concerning traveling optical fiber vibrations and the examination results on the mechanism of vibrations. First, we outline the characteristics of traveling cable vibrations, secondly, we explain the results of model cable vibration tests and finally, we describe the theory to clarify the mechanism of the traveling cable vibrations. In the analytical part, we start with the equation of motion of a traveling cable together with the effect of the fluid force due to the leakage flow induced in a coating dice. The effect of the leakage flow in a coating dice is formulated based on annular leakage flow theory developed by author's group where the effect of viscosity of the coating material on the instability is taken into account. Then, the equation of a traveling cable under the effect of the leakage flow at the supporting point is successfully formulated. Based on the linearized equation of motion for the traveling cable, eigenvalue analysis was performed which leads to instability criteria selecting dice configuration and the temperature of the coating material as parameters. Finally, calculated results were compared with test experimental results and discussion on the design parameters for the stable operation is made.

    CiNii

  • Development of Oil Free Compressor for Microgasturbine

    ITOH Mitsuyuki, KAMBE Shigeharu, KANEKO Shigehiko, SAKAI Itsurou

      21   323 - 326  2002.06

    CiNii

  • (12)振動モードの切替えによる斜張橋斜材ケーブルの制振方法に関する研究

    中野 龍児, 金子 成彦, 片村 立太

    日本機械学會誌   105 ( 1002 ) 295 - 296  2002.05

    CiNii

  • Trial Manufacturing of Experimental Apparatus of Air Bearing for Micro Gas Turbine

    Kaneko Shigehiko, Kitazawa Susumu, Watanabe Tastuo

    National Symposium on Power and Energy Systems     553 - 556  2002

     View Summary

    Self-acting micro air bearings are demanded for developing high performance, maintenance-free micro gas turbines. In this study, we developed a test facility for testing small size air bearings for developing future ultra small size gas turbine where we utilized the rotor of commercially available turbocharger. This setup consists of a gas lubricated foil bearing for a radial bearing and an externally pressurized gas-bearing with multiple air supply holes for a thrust bearing. The foil bearing used in this study is composed of a phosphor bronze foil given some hemisphere-like projections and a housing. The diameter of the rotor is 30 mm and the surface of the rotor is coated by ceramic. We measured rotational speed and vibrations in the radial and axial direction. Finally, we discussed some issues to be solved in future to realize higher rotational speed.

    CiNii

  • 小型分散エネルギーラボとPBL教育プログラム

    金子成彦

    日本ガスタービン学会誌   Vol.30 ( No.5 ) 347 - 349  2002

  • Micro gas turbine based PBL program

    KANEKO Shigehiko, WATANABE Tatsuo

    Journal of Jsee   Vol.50 ( No.5 ) 44 - 48  2002

     View Summary

    PBL (Problem Based Learning) is an educational program for the students where actual product and problems actually occurred in the industries are selected as a theme. In this program, the experience through skill up of the individuals and team working are most emphasized, and the aim of the education is meant for initiating and cultivating the attitude of thinking by themselves and defining problems which leads to competence. In this paper, the result of PBL program for undergraduate students taking micro gas turbine, the key component for distributed energy system as a theme is reported. We found the fact that micro gas turbine based PBL program is instructive and give students more practical experience than usual undergraduate thesis.

    DOI CiNii

  • マイクロガスタービン用空気軸受の試作

    金子成彦, 渡邉辰郎, 北澤 進

    日本ガスタービン学会誌   Vol.30 ( No.4 ) 283 - 287  2002

  • Report on overseas PBL programs

    KANEKO Shigehiko, WATANABE Tatsuo

    Journal of Jsee   Vol.50 ( No.3 ) 77 - 81  2002

     View Summary

    PBL (Problem Based Learning) is an educational program for the students where actual product and problems actually occurred in the industries are selected as a theme. In this program, the experience through skill up of the individuals and team working are most emphasized, and the aim of the education is meant for initiating and cultivating the attitude of thinking by themselves and defining problems which leads to competence. We start investigating PBL activities in USA, Sweden and Denmark starting from 1998. In this paper, PBL activities conducted in USA and European universities and colleges are reported focusing on the idea of education, supporting system, features and future issues etc.

    DOI CiNii

  • 東京大学におけるPBL教育の一事例

    金子成彦, 渡邉辰郎

    日本設計工学会誌   Vol.37 ( No.4 ) 11 - 18  2002

  • 流体振動におけるカオス挙動

    金子成彦

    機械の研究   Vol.54 ( No.1 ) 205 - 209  2002

  • W402 The Mechanism of Blood Pressure Measurement

    YOSHIZAWA Yasuhiro, KANEKO Shigehiko, WATANABE Tatsuo

      2001   338 - 338  2001.08

     View Summary

    In this paper, we tried to construct the simulator to simulate precisely the behavior of the pressure pulsation and the vibration characteristics of blood vessel of an upper arm of a human body during blood pressure measurement. Experimental parameters we mainly focused on are average pressure level, amplitude of pressure pulsation, the range of blood vessel vibration especially initiation and vanishing point of vibration and corresponding average pressure. We also did calculations based on the physical model including the rigidity toward the direction of cross sectional area. Comparison between experimental and calculated results is done and the problems to be solved in the next step are summarized.

    CiNii

  • 605 Analysis of Aerodynamic Vibration of Combined Rigid Bodies due to Leakage Flow : Measurement of the Unsteady Fluid Force around the Combined Rigid Bodies

    TANAKA Shigehiko, KANEKO Shigehiko, WATANABE Tatsuo

      2001   165 - 165  2001.08

     View Summary

    We carried out experiments using a model equipment composed of combined rigid bodies and a tunnel with pressure taps which forms leakage flow channel in order to examine the effect of the aerodynamic force on the oscillations of high speed train observed in a tunnel section, and measured the steady and unsteady pressure at the tunnel wall and motions of the rigid bodies under several structural conditions. As a result of the experimental measurement, it was confirmed that the energy is mainly supplied to the downstream rigid body by aerodynamic force.

    CiNii

  • 602 The Mechanism of In-line Oscillation of a Single Circular Cylinder Excited by Symmetric Vortices

    Yasukawa Ryoichi, Kaneko Shigehiko, Watanabe Tatsuo, Nishihara Takashi

      2001   162 - 162  2001.08

     View Summary

    We analyzed the response of an elastically supported single cylinder excited by the symmetric vortex shedding and succeeded in obtaining the limit cycle oscillation analytically for the first time. The analysis was done based on the precise fluid force measurement using large scale gravity type water tunnel and the forcing vibration test equipment. Separating the fluid force acting on the single cylinder into steady component and the component in phase and out of phase with the displacement of the cylinder, we finally obtained the fluid force due to the symmetric vortex shedding as a function of reduced velocity and the amplitude of forcing vibration.

    CiNii

  • 623 A study on countermeasures against wind-induced cable vibrations in a cable-stayed bridge by changing vibration modes : Parameter design method

    NAKANO Ryuji, KANEKO Shigehiko, MATSUNAGA Yoshinori, KATAMURA Ryuta

      2001   183 - 183  2001.08

     View Summary

    Vibrations of stay cables are often induced by wind due to aerodynamic instability. The authors developed a new countermeasure against such vibrations by changing vibration modes using permanent magnet and its effectiveness has been verified both theoretically and experimentally. In this paper, a parameter design method which gives us possible condition for suppressing vibrations is proposed. The design parameters are obtained by a relatively facile analysis considering only an aerodynamically unstable vibration mode with an "effective aerodynamic damping ratio". This new concept for the damping ratio is introduced to take account of the effect of stable mode vibration energy. Finally, it is confirmed that the design conditions calculated from this method agree well with wind tunnel test results.

    CiNii

  • マイクロガスタービン状態監視・制御システムの試作

    猪股 仁, 金子 成彦, 渡邉 辰郎, 庄田 成志

    ガスタービン定期講演会講演論文集   29   77 - 82  2001.05

    CiNii

  • 流水中の円柱状構造物に作用する抗力方向付加流体力の測定

    西原 崇, 金子 成彦, 安川 亮一

    電力中央研究所報告 研究報告   ( 66 ) 巻頭1 - 4,1〜15  2001.04

    CiNii

  • 328 すきま流れによって発生する多体連結剛体の空力振動 : 剛体支持条件,すきま幅の影響に関する検討(流体関連の振動と制御)(OS.14 多体力学系の力学と制御)

    田中 成彦, 金子 成彦, 渡辺 辰郎

    日本機械学会関東支部総会講演会講演論文集   2001 ( 7 ) 327 - 328  2001.03

    CiNii

  • Recent activity of engineering education in Japanese university

    Shigehiko Kaneko

    JSME News    2001

  • マイクロガスタービン(小型分散エネルギー社会の実現をめざして)

    金子成彦

    自動車技術会誌   Vol.55 ( No.5 ) 94 - 95  2001

  • Project Based Learning Taking Micro Gas Turbine as a Theme.

    Turbomachinery   Vol.29 ( No.4 ) 14 - 19  2001

    DOI CiNii

  • 国立大学における教育改革の試み

    黒川淳一, 金子成彦, 生田幸士

    日本機械学会誌   Vol.104 ( No.990 ) 298 - 306  2001

  • Sloshing Analysis of Liquid in a Whirling Ring

    KASAHARA Masayuki, KANEKO Shigehiko, Ishii Hiroshi

      2000   152 - 152  2000.09

     View Summary

    This research deals with the vibration of rotors containing liquid, such as rotors of washing machines with a fluid balancer, and is intended to predict the occurrence of self-excited vibration and to evaluate some other characteristics of these rotors by analysis. We developed an analytical method using the assumption of shallow-water sloshing to predict the motion of liquid contained in a whirling ring, and made some calculations for various whirling rates. These calculations confirmed the validity of the method, and yielded following results. (a) Not only major resonances, but also secondary resonances peculiar to nonlinear9 ssytems occur when multiples of the exciting frequency correspond to natural frequencies of sloshing. (b) There are some isolated waves (or solitons) near resonance points, and the number of solitons changes when whirling rates changes slightly.

    CiNii

  • A measurement of added fluid forces in in-line direction acting on a cylindrical structure in a flow

    Nishihara Takashi, Yasukawa Ryoichi, Kaneko Shigehiko, Watanabe Tatsuo

      2000   160 - 160  2000.09

     View Summary

    Water-tunnel tests were conducted to investigate a flow-induced vibration of a circular cylinder in-line direction. Added fluid forces were measured acting on a circular cylinder excited forcedly in in-line direction. As a result, it was confirmed that negative damping forces act on a cylinder in a certin range of reduced flow velocity where self-induced oscillations with symmetric vortex shedding occurred in free-oscillation tests in previous studies.

    CiNii

  • Experiment of Liquid Motion in a Whirling Ring

    KASAHARA Masayuki, KANEKO Shigehiko, Oshita Kazuhiro, Ishii Hiroshi

      2000   153 - 153  2000.09

     View Summary

    This research deals with the vibration of rotors containing liquid, such as rotors of washing machines with a fluid balancer, and is intended to predict the occurrence of self-excited vibration and to evaluate some other characteristics of these rotors by analysis. Following the analysis of the fluid motion in the whirling ring, we conducted an experiment to confirm the validity of proposed method and the phenomena obtained by analysis. Followings were observed in the experiment, and the validity of the analysis method was confirmed. (a) Resonances occurred at the frequency calculated by the analysis. (b) Isolated waves (or solitons) occurred near resonance points, and the number of solitons changes when whirling rates changes slightly.

    CiNii

  • Analysis of Aerodynamic Vibration of Combined Rigid Bodies due to Leakage Flow (Research on the Effect of Shapes and Support Conditions of the Rigid Body Edges)

    TANAKA Shigehiko, HIRATA Takashi, KANEKO Shigehiko, WATANABE Tatsuo

      2000   169 - 169  2000.09

     View Summary

    We carried out an experiment using a model equipment of connected rigid bodies which form leakage flow channel in order to simulate the aerodynamic oscillation of high speed train that arises in a tunnel section, and examined the relationship between the instability and configurations; support condition of the rigid bodes, shapes of the both edges, initial position in the tunnel and combination amount, with the flow velocity changed. As a result of the experiment, two kinds of the instability phenomenon were observed over the specific flow velocity : minute vibration mainly on the yawing mode and divergence displacement. Especially, the eccentricity of head shape of downstream rigid body and initial position was considered to be the factor of which the effect on the instability was high. And, it was proven that the behavior of the rigid bodies complicatedly changed by the combination of these conditions.

    CiNii

  • 流体関連振動・騒音の昨日・今日・明日

    金子 成彦

    日本音響学会研究発表会講演論文集   2000 ( 1 ) (35) - (40)  2000.03

    CiNii

  • 片持ち円柱構造物の抗力方向振動に関する実験的研究

    毛利泰裕, 金子成彦, 渡邉辰郎

    東京大学総合試験所所報   Vol.58 ( 58 ) 79 - 84  2000

    CiNii

  • Capability study for magnetic flux concentration of high performance permanent magnets and micro manipulation : Mixed-μ problem analysis of HTSC bulk and PM

    MIYAUCHI Masahiro, KANEKO Shigehiko

      11   339 - 340  1999.10

    CiNii

  • Torque transfer characteristics of non-contact Nd-Fe-B permanent magnetic clutch

    MIYAUCHI Masahiro, KANEKO Shigehiko, MOHRI Yasuhiro

      11   337 - 338  1999.10

    CiNii

  • プラント機器、配管などが絡む機器のトラブル診断と対策

    金子成彦, 松田博行

    日本機械学会講習会教材   No.99 ( 20 ) 59 - 77  1999

  • Self-Excited Sloshing Due to the Fluid Discharge over a Flexible Weir (3rd Report, Comparison between Experimental and Analytical Results and Discussion on the Parameters which Effect on the Stability of the System)

    NAGAKURA Hiroshi, KANEKO Shigehiko

    Transactions of the Japan Society of Mechanical Engineers. Series C.   64 ( 624 ) 2882 - 2885  1998.08

     View Summary

    An analytical study was performed for the fluid elastic instability as observed in Super-Phenix-1 LMFBR. In this report, calculations were conducted for the 1/10-scale experimental model, which is one of the representative model employed by Fujita et al. Agreement between the analytical and the experimental results were good. It is shown that the kinematic effect of the discharged fluid on the downstream plenum sloshing is predominant rather than the dynamic effect, i. e. the increase in volumetric inflow rate into the downstream plenum causes the free surface to rise. Therefore, the system becomes unstable if the inflow rate increases when the free surface of the downstream plenum are rising.

    CiNii

  • Self-Excited Sloshing Due to the Fluid Discharge over a Flexible Weir (1st Report, Excitation Mechanism of Instability in the Rectangular Model)

    NAGAKURA Hiroshi, KANEKO Shigehiko

    Transactions of the Japan Society of Mechanical Engineers. Series C.   64 ( 623 ) 2437 - 2445  1998.07

     View Summary

    This paper presents an analytical model for the fluid-elastic instability as observed in Super-Phenix-1 LMFBR. This fluid-structure system is constituted by the flexible cylindrical weir and adjoining annular fluid plenums, and the fluid is discharged from the upstream plenum to the downstream plenum over the flexible weir. In this report, to clarify the mechanism for instability, we analyzed the case in which the rectangular reservior was divided into the upstream and the down-stream plenums by a flexible plate weir. The characteristic equation of the system is derived. The effects of the discharged fluid on the downstream plenum sloshing and the effects of the fluid level difference between the upstream and the downstream plenums are examined, and the mechanism for instability is discussed.

    CiNii

  • Self-Excited Sloshing Due to the Fluid Discharge over a Flexible Weir (2nd Report, Excitation Mechanism of Instability in the Cylindrical Model)

    NAGAKURA Hiroshi, KANEKO Shigehiko

    Transactions of the Japan Society of Mechanical Engineers. Series C.   64 ( 623 ) 2446 - 2454  1998.07

     View Summary

    This paper presents an analytical model for the fluid elastic instability as observed in Super Phenix-1 LMFBR. This fluid-structure system is constituted by the flexible cylindrical weir and adjoining annular fluid plenums, and the fluid is discharged from the upstream plenum to the downstream plenum over the flexible weir. In this report, we analyzed the case in which the annular reservior was divided into the upstream and the downstream plenums by a flexible cylindrical weir. The characteristic equation of the system is derived. The effects of the discharged fluid on the downstream plenum sloshing and the effects of the fluid level difference between the upstream and the downstream plenum are examined, and the mechanism for instability is discussed.

    CiNii

  • Nonlinear Characteristics of Sloshing with Inlet and Outlet Flow in a Rectangular Tank

    MACHIDA Taketoshi, KANEKO Shigehiko, WATANABE Tatsuo

    Transactions of the Japan Society of Mechanical Engineers. Series C.   64 ( 620 ) 1184 - 1192  1998.04

     View Summary

    Recently sloshing with various flow patterns has been attracting much attention particularly in conjunction with the integrity of fast breeder reactors. In the present paper, theoretical and experimental study was performed to investigate nonlinearity of sloshing with circulating flow in a rectangular tank subjected to horizontal excitations. It had been found that the nonlinearity of sloshing is affected by the water depth and the flow velocities. In the theoretical calculation assuming that the horizontal surface flow instead of circulating flow was dominant in the tank, we conducted potential flow analysis based on the superposition of the velocity potential of noncirculating flow and that of the surface flow. In this paper, the actual surface velocities were measured with a Pitot tube and those were employed in the calculation, which gives better agreement.

    CiNii

  • Nonlinear Characteristics of Sloshing with Steady Circulating Flow

    KANEKO Shigehiko, MACHIDA Taketoshi, NIINA Shinya

      16   67 - 68  1997.07

    CiNii

  • 次世代の若者を導き、刺激する学会活動

    金子成彦, 田中基八郎, 前田 清, 米村傳治郎

    日本機械学会誌   Vol.100 ( 948 ) 1140 - 1147  1997

  • 3. 流体関連振動(機械工学年鑑(1994年)機会力学・計測制御)

    金子 成彦

    日本機械学會論文集. C編   61 ( 588 ) 3161 - 3161  1995.08

    CiNii

  • 13.機械力学・計測制御 : 13・4 流体関連振動 (<特集gt機械工学年鑑)

    金子 成彦

    日本機械学會誌   98 ( 921 ) 677 - 677  1995.08

    CiNii

  • On the Publication of Special Issue "Flow Induced Vibrations in Engineering Systems and the Control of Flow Induced Vibrations"

    KANEKO Shigehiko

    Transactions of the Japan Society of Mechanical Engineers. C   61 ( 585 ) 1755 - 1756  1995.05

    CiNii

  • 振動の制御

    金子成彦

    日本機械学会講習会教材   No.95 ( 47 ) 75 - 85  1995

  • 流体関連機器のトラブル対策

    金子成彦, 藤川 猛

    日本機械学会講習会教材   No.95 ( 13 ) 37 - 48  1995

  • Protecting from Flow-Induced Vibration, Troubleshooting for Vibration in Industrial Machinery

    Shigehiko Kaneko

    Laboratorium Dinamika Pau-Ir, Bandung Institute of Technology     7.1 - 7.17  1995

  • 13.機械力学・計測制御 : 13・4 流体関連振動 (<特集>機械工学年鑑)

    金子 成彦

    日本機械学會誌   96 ( 897 ) 700 - 700  1993.08

    CiNii

  • 同調液体ダンパーによる構造物の制振

    金子成彦

    日本機械学会講習会教材   No.930 ( 16 ) 37 - 46  1993

  • 流れによる弾性体の振動

    金子成彦

    日本機械学会講習会教材   No.920 ( 58 ) 57 - 66  1992

  • 液体の共振を利用した制振装置

    金子成彦

    日本舶用機関学会誌   Vol.27 ( No.4 ) 323 - 329  1992

    DOI CiNii

  • 流体関連振動と流体制振におけるモデリング

    金子成彦

    日本機械学会講習会教材   No.910 ( 61 ) 17 - 25  1991

  • 非線形自励振動系を対象とした数値積分法の特性評価

    金子成彦ほか

    総合試験所年報   Vol.49   171 - 176  1991

  • 1次元平行すきま流路内に置かれた片持ち弾性はりの安定性

    長倉 博, 金子成彦

    総合試験所年報   Vol.49   177 - 182  1991

  • モード連成フラッタの能動制振に関する研究

    廣田和生, 金子成彦

    総合試験所年報   Vol.50 ( 50 ) 143 - 148  1991

    CiNii

  • スロッシングを利用した制振装置の研究

    金子成彦, 石川雅章, 渡辺辰郎

    総合試験所年報   Vol.50 ( 50 ) 149 - 154  1991

    CiNii

  • いつ流によって発生する弾性平板堰の自励振動の発生機構に関する研究

    中野龍児, 金子成彦

    総合試験所年報   Vol.50 ( 50 ) 155 - 160  1991

    CiNii

  • すきま流に起因する片持ち弾性はりの自励振動

    長倉 博, 金子成彦

    総合試験所年報   Vol.48   199 - 204  1990

  • 相似則の学び方

    金子成彦

    メカライフ   No.18   52 - 53  1989

  • いつ流に伴う堰の自励振動

    金子成彦, 久野勝美

    東京大学工学部紀要   A-27   20 - 21  1989

  • 遠心分離機の自励振動

    金子成彦

    総合試験所年報   Vol.48 ( 48 ) 193 - 198  1989

    CiNii

  • 4・3流体関連振動 : 4.機械力学

    金子 成彦

    日本機械学會誌   91 ( 837 ) 747 - 747  1988.08

    CiNii

  • すきま流励起振動の基礎

    金子成彦

    日本機械学会第674回講習会教材     47 - 55  1988

  • 液体で部分的に満たされた中空回転軸系の自励振動に関する研究

    金子 成彦

    日本機械学會誌   89 ( 810 ) 488 - 488  1986.05

    CiNii

  • 4・3・2 熱・流体関係(4・3 連続体の振動・衝撃,4.機械力学,<特集>機械工学年鑑)

    金子 成彦

    日本機械学會誌   86 ( 777 ) 846 - 846  1983.08

    CiNii

  • 液体で部分的に満たされた中空回転軸系の自励振動

    金子成彦, 葉山眞治

    東京大学工学部紀要   A-19   20 - 21  1981

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Industrial Property Rights

  • 副室式エンジンの燃焼状態判別方法,副室式エンジン,及びエンジンシステム

    高島良胤, 佐古孝弘, 山崎由大, 高居明弘, 金子成彦

    Patent

  • (EUROPEAN PATENT) Damping device

    Fujita Etsunori, Honda Hiroki, Kaneko Shigehiko

    Patent

  • 疲労度測定方法、疲労検出装置及びコンピュータプログラム

    4611206

    金子成彦, 藤田悦則

    Patent

     View Summary

    疲労度を定量化して表示可能とする

  • (US Patent)疲労度測定方法、疲労検出装置及びコンピュータプログラム

    金子成彦, 藤田悦則

    Patent

  • (ヨーロッパ特許)疲労度測定方法、疲労検出装置及びコンピュータプログラム

    金子成彦, 藤田悦則

    Patent

  • (中国特許)疲労度測定方法、疲労検出装置及びコンピュータプログラム

    金子成彦, 藤田悦則

    Patent

  • 磁気ダンパ装置

    藤田悦則, 金子成彦

    Patent

  • Seat structure

    Patent

  • 座席構造

    金子成彦, 藤田悦則, 坂本豊, 千柄一義, 川崎誠司, 高田康秀, 小倉由美

    Patent

  • 座席構造

    金子成彦, 藤田悦則, 坂本豊, 千柄一義, 川崎誠司, 高田康秀, 小倉由美

    Patent

  • 液体搬送装置の液面変動抑制方法

    特許3373377

    金子成彦

    Patent

  • 緩衝装置

    金子成彦, 藤田悦則, 譽田浩樹

    Patent

  • ダンパ

    金子成彦, 藤田悦則, 榎芳美, 譽田浩樹

    Patent

  • 斜材ケーブル制振装置用サグ対策機構

    片村立太, 中野寵児, 松永義憲, 金子成彦

    Patent

  • 情報記録再生ディスク装置

    特許1538529

    葉山眞治, 金子成彦, 有賀敬治

    Patent

  • 疲労度測定方法、疲労検出装置おおびコンピュータプログラム

    藤田悦則, 金子成彦

    Patent

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Syllabus

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Teaching Experience

  • 流動励起振動論

    東京大学  

  • 流れと波動学

    東京大学  

  • 数学及力学演習

    東京大学  

  • 工学コンピテンシー

    東京大学  

  • 機械設計製図

    東京大学  

  • 流体振動特論

    東京大学  

  • 非線形力学

    東京大学  

  • 熱機関演習

    東京大学  

  • 内燃機関特論

    東京大学  

  • 設計・機械力学・機構通論

    東京大学  

  • 振動・波動学

    東京大学  

  • コンピュータ機械工学

    東京大学  

  • 機械力学・制御演習

    東京大学  

  • 機械力学

    東京大学  

  • 機械数学

    東京大学  

  • 拡張ナノ空間実践演習

    東京大学  

  • エネルギーと社会

    東京大学  

  • エネルギーと環境

    東京大学  

  • Fluid Structure Interaction Modeling and Design

    東京大学  

  • システムズ・メカニクス研究

    Waseda University  

  • Mechanical Engineering Frontiers

    Waseda University  

  • Environmental Science Fundamentals

    Waseda University  

  • Fluid Dynamics Fundamentals

    Waseda University  

  • Engineering Thermodynamics

    Waseda University  

  • Introduction to Mechanical Engineering

    Waseda University  

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Research Institute

  • 2022
    -
    2024

    Waseda Research Institute for Science and Engineering   Concurrent Researcher