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Basic Research for On-line Identification of Physical Parameters Involved in Flexible Structures

Research Project

Project/Area Number 09650080
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Engineering fundamentals
Research InstitutionKYOTO INSTITUTE OF TECHNOLOGY

Principal Investigator

OHSUMI Akira  Department of Mechanical and System Engineering, Kyoto Institute of Technology, Professor, 工芸学部, 教授 (70027902)

Co-Investigator(Kenkyū-buntansha) SAWADA Yuichi  Department of Mechanical and System Engineering, Kyoto Institute of Technology, Research Assistant, 工芸学部, 助手 (80273548)
OHSE Nagato  Department of Mechanical and System Engineering, Kyoto Institute of Technology, Lecturer, 工芸学部, 講師 (70027928)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1999: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1997: ¥2,100,000 (Direct Cost: ¥2,100,000)
KeywordsModeling of distributed parameter system / Parameter identification / On-line parameter algorithm / Inverse problem / 分布定数系のモデリング
Research Abstract

The principal purpose of this basic research is to establish the on-line algorithms for determining physical parameters involved in the model of cantilevered beam such as the Young's modulus, Kelvin-Voigt structural and air damping coefficients. These unknown parameters can not be measured directly no matter what instruments or sensors are employed. The measurement is performed only for the displacement of the beam. So the problem is to construct any computer algorithm for identification by using indirectly measured dynamic data.
In order to research step by step, at first the identification algorithm for two unknown physical parameters(the internal damping coefficient and the Young's modulus) of the uniform cantilevered beam is established. Next, by developing the above-mentioned algorithm an on-line computational algorithm for determining the two unknown parameters is proposed for a class of uniform mechanically beams. Then the inverse problem for the spatially distributed (i.e., spatially-varying)model two parameters are considered for the non-uniform cantilevered beam.
Needless to say, when we deal with flexible structures on the ground, the effect of the air damping cannot be neglected. Taking the air damping effect into account, a simultaneous identification algorithm is proposed for determining Kelvin-Voigt structural and the air damping coefficient and Young's modulus. For the identification problem about three kinds of unknown parameters, we also construct an on-line identification problem for three parameters. Furthermore we develop the (off-line) identification algorithm for three spatially-varying parameters.
The identification method proposed in this research are the indirectly measurement method, so-called 'soft sensor', by which we decide unmeasurable physical parameters using the dynamic measurement data.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (38 results)

All Other

All Publications (38 results)

  • [Publications] A. Shintani: "Algorithm for Identifying Spatially Varying Physical Paramaters in Flexible Beams"Proc. 11th IFAC Symp. On System Identification. 1. 369-374 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 中野統英: "柔軟構造物の未知パラメータの同定"システム制御情報学会第42回研究発表講演会講演論文集. 1. 427-428 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Nakano: "Identification of Spatially-varying Physical Paramaters Involved with Flexible Beams"Proc. 2nd World Conference on Structural Control. 3. 2241-2248 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A. Ohsumi: "Identification of Physical Parameters in Structure Models"Proc. 3rd Asia-Pacific Conference on Control & Measurements (APCCM '98). 1. 53-57 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A. Ohsumi: "Identification of Parameters Spatially-invariant/ varying Physical Parameters of Dynamic Beams"Proc. 3rd Japan-Central Europe Joint Workshop on Modelling and Simulation on Non-linear Engineering Systems and Related Phenomena. 1. 335-338 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 中野統英: "構造物の空間に依存する物理パラメータの同定"第8回電磁現象及び電磁力に関するコンファレンス(MAGDA Conference)論文集. 1. 23-26 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Nakano: "Identification of Physical Parameters of Flexible Beams Using On-line Algorithm"Proc. 15th World Congress of International Measurement Confederation(IMEKO-XV). 5. 131-138 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Nakano: "Algorithms for the Identification of Spatially Varying/Invariant Stiffness and Dampings in Flexible Beams (印刷中)"Inverse Problems and Related Topics(図書). CRC Press. (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 中野統英: "振動計測データを用いた片持ちはりの物理パラメータの同定(印刷中)"日本機械学会論文集. 66(C). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A. Shintani, A. Ohsumi, T. Watanabe, and M. Hara: "Algorithm for Identifying Spatially Varying Physical Parameters in Flexible Beams"Proc. 11th IFAC Symp. on System Identification. Volume 1. 369-374 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Nakano, A. Shintani, and A. Ohsumi: "Identification of Physical Parameters of Dynamic Beams"Proc. 42nd Annual Conference of the Institute of Systems, Control and Information Engineers. 427-428 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Nakano, A. Shintani, and A. Ohsumi: "Identification of Spatially-varying Physical Parameters Involved with Flexible beams"Proc. 2nd World Conference on Structural Control. Volume 3. 2241-2248 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A. Ohsumi, N. Nakano, A. Shintani, and N. Ohse: "Identification of Physical Parameters in Structure Models"Proc. 3rd Asia-Pacific Conference on Control & Measurements (APCCM'98). Volume 1. 53-57 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A. Ohsumi, N. Nakano, and A. Shintani: "Identification of Parameters Spatially-invariant/varying Physical Parameters of Dynamic Beams"Proc. 3rd Japan-Central Europe Joint Workshop on Modelling and Simulation on Non-linear Engineering Systems and Related Phenomena. 335-338 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Nakano, A. Ohsumi, A. Shintani, and K. Yoshida: "Identification of Physical Parameters of Flexible Beams Using On-line Algorithm"Proc. 15th World Congress of International Measurement Confederation (IMEKO-XV). Volume 5. 131-138 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Nakano, A. Ohsumi, and A. Shintani: "Algorithms for the Identification of Spatially Varying/Invariant Stiffness and Dampings in Flexible Beams"Inverse Problems and Related Topics, CRC Press, London. (to appear). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A. Ohsumi and N. Nakano: "Identification of Spatially-varying Structural Parameters"Proc. 8th MAGDA Conference (Conf. on Electromagnetic Phenomena and Electromagnetic Forces). Volume 1. 23-26 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Nakano, A. Shintani, and A. Ohsumi: "Identification of Unknown Physical Parameters of Cantilevered Beam Using its Vibration Data"Trans. Japan Society of Mechanical Engineers. Volume 66 (C) (to appear). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A.Shintani: "Algorithm for Identifying Spatially Varying Physical Parameters in Flexible Beams"Proc.11th IFAC Symp.on System Identification. 1. 369-374 (1997)

    • Related Report
      1999 Annual Research Report
  • [Publications] 中野統英: "柔軟構造物の未知パラメータの同定"システム制御情報学会第42回研究発表講演会講演論文集. 1. 427-428 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Nakano: "Identification of Spatially-varying Physical Parameters Involved with Flexible beams"Proc.2nd World Conference on Structural Control. 3. 2241-2248 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] A.Ohsumi: "Identification of Physical Parameters in Structure Models"Proc.3rd Asia-Pacific Conference on Control & Measurements (APCCM '98). 1. 53-57 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] A.Ohsumi: "Identification of Parameters Spatially-invariant/varying Physical Parameters of Dynamic Beams"Proc.3rd Japan-Central Europe Joint Workshop on Modelling and Simulation on Non-linear Engineering Systems and Related Phenomena. 1. 335-338 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 中野統英: "構造物の空間に依存する物理パラメータの同定"第8回電磁現象及び電磁力に関するコンファレンス(MAGDA Conference)論文集. 1. 23-26 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Nakano: "Identification of Physical Parameters of Flexible Beams Using On-line Algorithm"Proc.15th World Congress of International Measurement Confederation (IMEKO-XV). 5. 131-138 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Nakano: "Algorithms for the Identification of Spatially Varying/Invariant Stiffness and Dampings in Flexible Beams,Inverse Problems and Related Topics"CRC Press(印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 中野統英: "振動計測データを用いた片持ちはりの物理パラメータの同定"日本機械学会論文集. 66(C)(印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] A.Shintani: "Algorithm for Identifying Spatially Varying Physical Paramaters in Flexible Beams" Proc.11th IFAC Symp.on System Identification. 1. 369-374 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] 中野統英: "柔軟構造物の未知パラメータの同定" システム制御情報学会学術講演会研究発表論文集. 1. 427-428 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] A.Ohsumi: "Identification of Parameters in Flexible Structure Models" Proc.3rd Asia-Pacific Conference on Control & Measurements. 1. 53-57 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] N.Nakano: "Identification of Spatially-varying Physical Parameters Involved with Flexible Beams" Proc.2nd World Conference on Structural Control. (印刷中). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] A.Ohsumi: "Identification of Parameters Spatially-Invariant/Varying Physical Parameters of Dynamic Beams" Proc.3rd Japan-Central Europe Joint Workshop on Modelling and Simulation on Non-linear Engineering Systems and Related Phenomena. (印刷中). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] N.Nakano: "Identification of Physical Parameters of Flexible Beams Using On-line Algorithm" Proc.15th World Congress of International Measurement Confederation. (印刷中). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] N.Nakano: "Algorithms for the Identification of Spatially-Varying/Invariant Parameters Stiffness and Dampings in Flexible Beams" Trans.Inverse Problem and Related Topics. (印刷中). (2000)

    • Related Report
      1998 Annual Research Report
  • [Publications] A.Sintani: "Algorithm for Identifying Spatially Varying Physical Parameters in Flexible Beams" Proc.11th IFAC Symp.on System Identification. 1. 369-374 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 中野統英: "柔軟構造物の未知パラメータの同定" システム制御情報学会学術講演会研究発表論文集. (予定). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] N.Nakano: "Identification of Spatially-varying Physical Parameters Involved with Flexible Beams" Proc.2nd World Conference on Structual Control. (予定). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] A.Ohsumi: "Identification of Physical Parameters in Flexible Structure Models" Proc.3rd Asia-Pacific Conference on Control & Measurement. (予定). (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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