Innovative identification of mechanical structures

• Project/Area Number: 20560213
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: OKUMA Masaaki Tokyo Institute of Technology, 大学院・理工学研究科, 教授 (60160454)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: 振動解析・試験 / 振動学 / 動的設計 / 運動力学 / 運動制御 / 実験同定法 / 実験的同定法 / 剛体特性 / 動特性 / 振動試験 / 特性行列 / 質量行列,剛性行列,減衰行列 / 非線形最適化 / 構造動力学 / モード特性 / 加振制御

Research Abstract

The first successful result is the development of a newly innovative intelligent navigator system that can inform the best excitation point on test structure in vibration testing with the minimum effort of additional measurement. The testing is very important to find out the dynamic characteristics of mechanical structures. The reliability and accuracy of structural dynamics identification has been improved by integration of the navigator, modal testing and identification methods. The second successful result is the invention of a new algorithm for rigid-body property identification which is also very important as well as dynamic property. The invention has remarkably improved the identification accuracy. A prototype system was developed and the accuracy improvement was verified.

Research Products

• [Journal Article] Experimental identification of rigid body inertia properties using single-rotor unbalance excitation (2009)
  • Author(s): Robert Kloepper、大熊政明
  • Journal Title: Proceedings of.IMechE, Part K : J.Multi-Body Dynamics 223(K4)巻 Pages: 293-308
  • Peer Reviewed
• [Journal Article] Elimination of Bias Errors Due to Suspension Effects in FRF-Based Rigid Body Properties Identification、ASME Transaction (2009)
  • Author(s): Robert Kloepper、大熊政明
  • Journal Title: Journal of Dynamic Systems, Measurement and Control 131-4巻 Pages: 41005-41010
  • Peer Reviewed
• [Journal Article] Low Frequency Noise and Vibration Analysis of Boat Based on Experiment-Based Substructure Modeling and Synthesis (2009)
  • Author(s): 大熊政明
  • Journal Title: Lecture Notes in Applied and Computational Mechanics(Springer) 44巻 Pages: 203-214
  • Peer Reviewed
• [Journal Article] Experimental identification of rigid body inertia properties using single-rotor unbalance excitation (2009)
  • Author(s): Robetr Kloepper, Masaaki Okuma
  • Journal Title: Proceedings of. IMechE, Part K : J.Multi-Body Dynamics 233(K4) Pages: 293-308
  • Peer Reviewed
• [Journal Article] Elimination of Bias Errors Due to Suspension Effects in FRF-Based Rigid Body Properties Identification (2009)
  • Author(s): Robert Kloepper, Masaaki Okuma
  • Journal Title: ASME Transaction, Journal of Dynamic Systems, Measurement and Control Vol.131, No.4 Pages: 41005-41014
  • Peer Reviewed
• [Journal Article] (2009)
  • Author(s): Masaaki Okuma(分担執筆)
  • Journal Title: Lecture Notes in Applied and Computational Mechanics, Vol.44, "Vibro-Impact Dynamics of Ocean Systems and Related Problems"(Springer)
• [Journal Article] Squeal Noise Prediction in Dry Contact Sliding Systems by Means of Experimental Spatial Matrix Identification (2008)
  • Author(s): Meifal RUSLI、大熊政明
  • Journal Title: JSME International Journal of System Design and Dynamics 2-2巻
  • Peer Reviewed
• [Presentation] Importance of rigid-body property identification (2010)
  • Author(s): 大熊政明
  • Organizer: 1^<st> International Conference on Mechanical Engineering
  • Place of Presentation: タイ
  • Year and Date: 2010-10-20
• [Presentation] The Resonik method - A new way of measuring rigid body inertia properties (2010)
  • Author(s): Robert Kloepper, Masaaki Okuma
  • Organizer: JAXA第8回試験技術ワークショップ
  • Place of Presentation: 日本(筑波宇宙センター)
  • Year and Date: 2010-10-20
• [Presentation] 高精度な剛体特定同定法の開発に関する研究 (2010)
  • Author(s): 秋田啓仁、Robert Kloepper、寺田聖一、中園利之、坂本啓、大熊政明
  • Organizer: 日本機械学会機械力学計測制御部門講演会2010
  • Place of Presentation: 日本
  • Year and Date: 2010-09-14
• [Presentation] 複数ばね支持 による低剛性構造物の剛体特性同定の高精度化に関する研究 (2010)
  • Author(s): 中園利之, 人位智大, Robert Kloepper, 坂本啓, 大熊政明
  • Organizer: 日本機械学会機械力学計測制御部門講演会2010
  • Place of Presentation: 日本(同志社大学 京田辺キャンパス)
  • Year and Date: 2010-09-14
• [Presentation] 高精度な剛体特性同定法の開発に関する研究 (2010)
  • Author(s): 秋田啓仁, Robert Kloepper, 寺田聖一, 中園利之, 坂本啓, 大熊政明
  • Organizer: 日本機械学会機械力学計測制御部門講演会2010
  • Place of Presentation: 日本(同志社大学 京田辺キャンパス)
  • Year and Date: 2010-09-14
• [Presentation] 柔軟多孔質材 と流体による制振材開発のための基礎的研究 (2010)
  • Author(s): 姜範錫, 瀬川周平, 坂本啓, 大熊政明
  • Organizer: 日本機械学会機械力学計測制御部門講演会2010
  • Place of Presentation: 日本(同志社大学 京田辺キャンパス)
  • Year and Date: 2010-09-14
• [Presentation] An experimental identification method for rigid body properties enabled bygravity?dependent suspension model (2010)
  • Author(s): Robert Kloepper, Hiroto Akita, Masaaki Okuma, Seiichi Terada
  • Organizer: The 1st Joint International Conference on Multibody System Dynamics
  • Place of Presentation: フィンランド
  • Year and Date: 2010-05-27
• [Presentation] A Straightforward Algorithm for the Acquisition of Appropriate set of FRFs by Hammering Test for Modal Analysis (2010)
  • Author(s): 大熊政明、Sara Shayan Amin
  • Organizer: 2^<nd> International conference on Vibro-Impact Systems
  • Place of Presentation: 中国
  • Year and Date: 2010-01-06
• [Presentation] Old but Still Hot Research : Rigid-body Property Identification and Squeal Noise Prediction (2010)
  • Author(s): 大熊政明
  • Organizer: 2^<nd> International conference on Vibro-Impact Systems
  • Place of Presentation: 中国
  • Year and Date: 2010-01-06
• [Presentation] Experimental identification of rigid body inertia properties using low-frequency unbalance excitation. (2009)
  • Author(s): Robert Kloepper、坂本啓、大熊政明
  • Organizer: Proc.50th ASME Structural Dynamics Conference
  • Place of Presentation: アメリカ
  • Year and Date: 2009-05-07
• [Presentation] Experimental identification of rigid body inertia properties using low-frequency unbalance excitation (2009)
  • Author(s): R.Kloepper, H.Sakamoto, M.Okuma
  • Organizer: In Proc. 50th ASME Structutal Dynamics Conference
  • Place of Presentation: Palm Springs, USA
  • Year and Date: 2009-05-06
• [Presentation] A Robust Algorithm to Identify Efficient Driving Points in Experimental Modal Testing (2008)
  • Author(s): S.Shayan Amin, M.Okuma, K.Yamamoto
  • Organizer: Proc.International Conference on Noise & Vibration Engineering(ISMA)
  • Place of Presentation: ベルギー
  • Year and Date: 2008-09-15
• [Book] Squeal Noise Analysis in Mechanical Structure with Friction-Prediction by Experiment-based Method of Structural Analysis (2010)
  • Author(s): Meifal RUSLI、大熊政明
  • Total Pages: 92
  • Publisher: VDM Verlag
• [Book] 新・演習工業力学 (2010)
  • Author(s): 大熊政明
  • Total Pages: 178
  • Publisher: 数理工学社
• [Book] Squeal Noise Analysis in Mechanical Structure with Friction-Prediction by Experiment-based Method of Structural Analysis (2010)
  • Author(s): Meifal Rusli, Masaaki Okuma
  • Total Pages: 92
  • Publisher: VDM Verlag
• [Book] 新・演習 工業力学 (2010)
  • Author(s): 大熊政明
  • Total Pages: 178
  • Publisher: 数理工学社
• [Book] Lecture Notes in Applied and Computational Mechanics, Vol.44 (2009)
  • Author(s): Raouf A.Ibrahim, Vladimir I.Babitsky、大熊政明
  • Total Pages: 288
  • Publisher: Springer
• [Remarks] ホームページ等
  • URL: http://www.mech.titech.ac.jp/~dosekkei/kuma/