Updated on 2024/04/01

写真a

 
OURA Yasunori
 
Organization
Faculty of Advanced Engineering
Department
School of Engineering Department of Mechanical Systems Engineering
Title
Associate Professor
External link

Degree

  • 博士(工学) ( 2008.3   滋賀県立大学 )

Research Field

  • 振動工学

Research Experience

  • The University of Shiga Prefecture   Associate Professor

    2013.4

  • The University of Shiga Prefecture   Assistant Professor

    2008.4 - 2013.3

Association Memberships

  • 日本機械学会

    2008.4

Research Areas

  • Informatics / Mechanics and mechatronics

Available Technology

  • 振動問題の解決と振動を利用した機械の駆動や診断

Papers

  • ディスクブレーキにおける面内鳴きの発生メカニズム(低自由度の解析モデルによる鳴き発生条件の検討) Reviewed

    大浦靖典,田中昂,栗田裕

    日本機械学会論文集   90 ( 930 )   2024.2

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    Authorship:Lead author   Language:Japanese  

    DOI: 10.1299/transjsme.23-00251

  • Measurement of natural vibration of multi-degree-of-freedom system with large damping by multi-point excitation using local feedback control

    2023

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    Language:English  

  • Evaluation of contact-type failure development based on frequency modulation due to nonlinear wave modulation utilising self-excited ultrasonic natural vibration Reviewed

    Takashi Tanaka, Yasunori Oura, Syuya Maeda

    International Journal of Condition Monitoring and Diagnostic Engineering Managemen   25 ( 2 )   59 - 66   2022.6

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    Language:English   Publishing type:Research paper (scientific journal)   Participation form:Joint(The vice charge)  

  • Evaluation of Contact-Type Failure Using Frequency Fluctuation Caused by Nonlinear Wave Modulation Utilizing Self-excited Ultrasonic Vibration Reviewed

    Takashi Tanaka, Yasunori Oura, Syuya Maeda, Zhiqiang Wu

    Lecture Notes in Mechanical Engineering: Proceedings of International Congress and Workshop on Industrial AI 2021   2022.2

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    Language:English   Publishing type:Research paper (scientific journal)   Participation form:Joint(The vice charge)  

    DOI: 10.1007/978-3-030-93639-6_14

  • Localization method of contact-type failure by measuring the structural intensity of low-frequency vibrations caused by frequency down-conversion of elastic vibrations Reviewed

    Takashi Tanaka, Junnosuke Asano, Yasunori Oura

    Mechanical Engineering Journal   8 ( 5 )   20-00201   2021.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:日本機械学会   Participation form:Joint(The vice charge)  

  • Excitation of ultrasonic natural vibrations by multi-Excitation using decentralized control for failure monitoring Reviewed International journal

    Takashi Tanaka, Takato Tamura, Yasunori Oura

    Proceedings of the ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems   No. SMASIS2021-67457   2021.9

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    Language:English   Publishing type:Research paper (international conference proceedings)   Participation form:Joint(The vice charge)  

  • Localization of multiple contact-type failures using structural intensity of low-frequency vibration caused by frequency down-conversion Reviewed International journal

    Takashi Tanaka, Junnosuke Asano, Yasunori Oura

    Proceedings of the ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems   No. SMASIS2021-67739   2021.9

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    Language:English   Publishing type:Research paper (scientific journal)   Participation form:Joint(The vice charge)  

  • Detection of contact-type failure based on nonlinear wave modulation utilising ultrasonic vibration driven by self-excitation Reviewed International journal

    Takashi Tanaka, Yasunori Oura, Syuya Maeda

    International Journal of Condition Monitoring and Diagnostic Engineering Management   Vol. 24 ( No. 2 )   43 - 49   2021.4

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    Language:English   Publishing type:Research paper (scientific journal)   Participation form:Joint(The vice charge)  

  • 非線形波動変調によって生じる固有振動数変動を用いた接触型損傷の程度評価 (時刻歴応答解析による固有振動数変動推定手法の検討) Reviewed

    田中昂, 大浦靖典, 前田秀哉,呉志強

    日本機械学会論文集   86 ( 889 )   2020.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Participation form:Joint(The vice charge)  

  • 分散制御による多自由度振動系の共振点駆動 (局所フィードバック制御とクロスフィードバック制御による大自由度・大減衰システムの固有振動励起) Reviewed

    田中 昂, 栗田 裕, 大浦 靖典, 上原 大貴

    日本機械学会論文集   86 ( 887 )   2020.6

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Participation form:Joint(The vice charge)  

  • 薄肉円筒工作物の切削加工時に発生する工作物変形型びびり振動(びびり振動の発生メカニズム) Reviewed

    栗田裕,大浦靖典,田中昂,川田昌宏

    日本機械学会論文集   86 ( 884 )   2020.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Participation form:Joint(The vice charge)  

    DOI: 10.1299/transjsme.19-00335

  • Detection Method of Contact-Type Failure Based on Nonlinear Wave Modulation Utilizing Ultrasonic Vibration Driven by Self-excitation Reviewed

    Tanaka T., Oura Y., Maeda S.

    Smart Innovation, Systems and Technologies   166   79 - 89   2020.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Smart Innovation, Systems and Technologies  

    This paper introduces the concept of new detection method of contact-type failure based on nonlinear wave modulation utilizing ultrasonic vibration driven by self-excitation. It is difficult to detect the contact-type failure in standard inspection utilizing linear ultrasonic vibration. The constructional element of infrastructure is excited by environmental disturbance or forced excitation. In this situation, the contact condition of the failure fluctuates in synchronization with vibration. As this result, local stiffness in the vicinity of failure location fluctuates at the vibration frequency. Thereby, the amplitude and phase of ultrasonic vibration are modulated caused by local stiffness fluctuation (nonlinear wave modulation). This phenomenon can be expressed by a linear time-varying system caused by fluctuation of the natural frequency. In this paper, the new detection method of contact-type failure utilizing self-excited ultrasonic vibration is introduced. Firstly, the concept of detection method of contact-type damage based on nonlinear wave modulation is proposed. It is indicated from time history response analysis using single degree-of-freedom model of nonlinear wave modulation that the fluctuation amplitude of the amplitude and phase of ultrasonic as failure index varies depending on viscous damping. Secondly, the self-excited method utilizing local feedback control and characteristics are introduced. This method realizes oscillator which start to oscillate at the natural frequency automatically. Thus, the frequency of oscillation signal controlled by local feedback control is fluctuated in synchronization with fluctuation of natural frequency when nonlinear wave modulation occurred. Lastly, it is proved that the fluctuation amplitude of frequency of oscillation signal is the failure index independent of viscous damping.

    DOI: 10.1007/978-3-030-57745-2_8

    Scopus

    Other Link: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85091270496&origin=inward

  • ディスクブレーキの鳴きに及ぼすパッドの表面性状の影響 Reviewed

    西澤幸男,栗田裕,大浦靖典,小坂享子

    日本機械学会論文集C編   78 ( 786 )   382 - 395   2012.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:一般社団法人日本機械学会   Participation form:Joint(The vice charge)  

  • 楕円振動を利用した分別搬送(接触面隙間の大きさによる分別)(共著) Reviewed

    栗田裕,大浦靖典,神田真輔,藤田佳孝

    日本機械学会論文集C編   78 ( 785 )   35 - 49   2012.1

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:一般社団法人日本機械学会   Participation form:Joint(The vice charge)  

  • パッドの非線形な動的ばね剛性を考慮したディスクブレーキ鳴きのFEM解析(共著) Reviewed

    西澤幸男,栗田裕,大浦靖典,野中雄之

    自動車技術会論文集   42 ( 3 )   697 - 702   2011.5

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:公益社団法人自動車技術会   Participation form:Joint(The vice charge)  

  • Driving at Resonance Point of Multi-Degree-of-Freedom System by Decentralized Control (Development of Control Method and Verification of Basic Performance) (共著) Reviewed

    Yutaka Kurita, Yasunori Oura, Shigekatsu Matsuda and Hajime Nishide

    Journal of System Design and Dynamics   5 ( 1 )   180 - 191   2011.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:一般社団法人日本機械学会   Participation form:Joint(The vice charge)  

  • Influence of Brake Pad Thickness on Disk Brake Squeal (共著) Reviewed

    Yasunori OURA, Yutaka KURITA, Yukio NISHIZAWA and Kyoko KOSAKA

    Journal of System Design and Dynamics,   4 ( 6 )   970 - 983   2010.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:社団法人日本機械学会   Participation form:Joint(The main charge)  

  • ディスク・パッド間圧力の均一化によるディスクブレーキ鳴きの低減 Reviewed

    大浦靖典,栗田裕,西澤幸男

    日本機械学会論文集(C編)   76 ( 770 )   2552 - 2559   2010.10

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:社団法人日本機械学会   Participation form:Joint(The main charge)  

  • Considering the Dynamic Pad Stiffness in FEM Analysis of Disk Brake Squeal(共著) Reviewed

    Hiroyuki NONAKA, Yukio NISHIZAWA,Yutaka KURITA and Yasunori OURA

    Proceedings of 28th Annual Brake colloquium & Exhibition   SAE No.2010-01-1716 ( 0 )   0 - 0   2010.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:SAE International   Participation form:Joint(The vice charge)  

  • ディスクブレーキの鳴きに及ぼすパッド厚さの影響 Reviewed

    大浦靖典,栗田裕,西澤幸男,小坂享子

    日本機械学会論文集(C編)   76 ( 765 )   1287 - 1294   2010.5

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:社団法人日本機械学会   Participation form:Joint(The main charge)  

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MISC

  • 大型構造物の超音波固有振動励起技術 =自励振動群の同期現象を利用した多点加振法=

    田中 昂,田村 空翔,大浦 靖典

    超音波TECHNO 2022年7-8月号   6 - 10   2022.8

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Participation form:Joint(The vice charge)  

Presentations

  • シャフトで支持されたディスクの固有振動によるブレーキ鳴き発生メカニズム

    五十川 豊,大浦 靖典,田中 昂

    日本機械学会 情報・知能・精密機器部門講演会 IIP2024  2024.3 

  • 局所定在波を用いた境界剛性簡易診断に関する基礎検討

    田中 昂,大浦 靖典,松田 隼弥

    第21回評価・診断に関するシンポジウム  2023.11 

  • 小減衰化された周波数応答関数から得られる固有振動の精度評価

    中尾 紘貴,大浦 靖典,田中 昂

    2023.8 

  • ブレーキのディスク・シャフトおよびパッド支持 部の固有振動が鳴きに及ぼす影響

    五十川 豊、大浦 靖典、田中 昂

    日本機械学会関西支部 第98期定時総会講演会  2023.3 

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    Language:Japanese   Presentation type:Poster presentation  

  • 多自由度大減衰システムの固有振動 (局所フィードバック制御を用いた多点加振によるモードパラメータの同定)

    中尾 紘貴,大浦 靖典,田中 昂

    第20回 評価・診断に関するシンポジウム  2022.12 

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    Language:Japanese   Presentation type:Poster presentation  

  • 分散制御による多自由度振動系の共振点駆動 (van der Pol型自励振動子化制御による駆動効率の向上)

    磯貝 悟,大浦 靖典,田中 昂

    第65回自動制御連合講演会  2022.11 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  • 大減衰システムの減衰比同定 (小減衰化された周波数応答関数への半値幅の適用)

    中尾 紘貴,大浦 靖典,田中 昂

    Dynamics & Design Conference 2022  2022.9 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  • 分散制御による多自由度振動系の固有振動励起 (van der Pol型自励振動子化制御の検討)

    磯貝 悟,大浦 靖典,田中 昂

    日本機械学会関西支部第97期定時総会講演会  2022.3 

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    Language:Japanese   Presentation type:Poster presentation  

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