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Research on Tendon Control System for Flexible Space Structures

Research Project

Project/Area Number 60460076
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Aerospace engineering
Research InstitutionUniversity of Osaka Prefecture

Principal Investigator

MUROTSU Yoshisada  College of Eng., Univ. of Osaka Prefecture (Professor), 工学部, 教授 (50081386)

Co-Investigator(Kenkyū-buntansha) HASHIMOTO Masafumi  do. (Research Associate), 工学部, 助手 (10145815)
MITSUYA Akira  do. (Research Associate), 工学部, 助手 (40081260)
TSUJIO Shozou  do. (Assistant Professor), 工学部, 講師 (40081252)
OKUBO Hiroshi  do. (Research Associate), 工学部, 助手 (40094502)
SHIBATA Hiroshi  College of Eng., Univ. of Osaka Prefecture (Professor), 工学部, 教授 (80094506)
Project Period (FY) 1985 – 1987
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥7,300,000 (Direct Cost: ¥7,300,000)
Fiscal Year 1987: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1986: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1985: ¥2,700,000 (Direct Cost: ¥2,700,000)
KeywordsTendon Control / Large Space Structure / Structural Control / Vibration Control / Active Control / Tendon control / ユロケーション / 不確定性管理 / 適応制御 / 極配置
Research Abstract

1. Studies on the Design of Tendon Control System
(1) Output Feedback Control (Low-Authority Control; LAC): A useful method is developed for determining the optimum output feedback gains and moment-arm location for the design of tendon control system for large flexible space structures. The proposed method employs a nonlinear programming technigue to optimize the design parameters so that the closed-loop poles may be placed in the complex plane as close to the desired pole locations as possible.
(2) Modal Control by State Feedbacks (High-Authority Control; HAC): Investigated are two design approaches which provide the designed controller with stability robustness and avoid instability due to mode truncation errors (spillovers). One is (a) LAC/HAC design method and the other is (b) the Loop Transfer Recovery (LTR) approach. The effectiveness of the former method is verified by numerical simulations.
2. Laboratory Experiment of Tendon Control System for a Flexible Beam
The prototype tendon c … More ontrol system has been built for a flexible beam control experiment in the laboratory. It consists of a pair of moment arms mounted on the beam, an electrodynamic force actuator and a rotating link at the beam root, and tensile cables (tendons) connecting the link with the moment arms. The hardware experiment has been done successfully, which shows the fundamental feasibility of the tendon control system for the active vibration control of highly flexible structures.
(1) Modeling and Identification of the Dynamics of the Experimental Tendon Control System: A mathe-matical model of the coupled beam/tendon system dynamics has been constructed with a finite element method(GEM). Included in the modeling are the contributions of gravitational force, axial static load generated by the tension cables, and proportional dampings. The tendon actuator is modeled as an added one-degree-of -freedom vibrating system. The unknown parameters in the FEM model are determined from the measured responses. The result shows satisfying agreement between the theory and the experiment.
(2) Direct Velocity Feedback Control Experiment: Velocity feedback control scheme has been applied to the developed tendon control system. Either of the angular velocity of the moment arms or that of the rotating link was fedback to the electrodynamic actuator. The former system caused a closed-loop in-stability due to the dynamics of the tendon actuator, whereas the latter showed a stable control and ef-fective vibration damping. These facts show that the dynamics of the tendon actuator system plays an important role in the control system design. Less

Report

(3 results)
  • 1988 Final Research Report Summary
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] 室津義定: Bull. of the Univ. of Osaka Prefecture, Ser.A. 34-1. 1-11 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 室津義定: Bull. of the Univ. of Osaka Prefecture, Ser.A. 34-2. 137-145 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 室津義定: Bull. of the Univ. of Osaka Prefecture, Ser.A. 35-2. 101-109 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 大久保博志: Proc. of the 10th IFAC World Congress on Automatic Control. 6. 172-177 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 大久保博志: Proc. of the IMACS/IFAC Int. Conf. on Modelling and Simulation of Distributed Parameter Systems. 647-654 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 室津義定: AIAA Journal of Guidance, Control, and Dynamics. 11-4. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 室津義定: 日本機械学会論文集.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 大久保博志: 16th International Symposium on Space Technology and Science,. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] MUROTSU, Yoshisada.: "Tendon Control System for Flexivle Space Structures" Bull. of the Univ. of Osaka Prefecture, Ser. A. 34-1. 1-11 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Murotsu, Yoshisada.: "An Approach to Optimum Design of Output Feedback Control System for Flexible Space Structures" Bull. of the Univ. of Osaka Prefecture, Ser. A. 34-2. 137-145 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] MUROTSU, Yoshisada.: "Tendon Control of Flexible Structures - A Hardware Demonstration" Bull. of the Univ. of Osaka Prefecture, Ser. A. 35-2. 101-109 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] OKUBO, Hiroshi.: "Failre Detection and Identification in the Control of Large Space Structures" Proc. of the 10th IFAC World Congress on Automatic Control. 6. 172-177 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] OKUBO, Hiroshi.: "Research on Tendon Control System for Flexible Structures" Proc. of the IMACS/IFAC Int. Conf. on Modelling and Simulation of Distributed Parameter Systems. 647-654 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] MUROTSU, Yoshisada.: "Low-Authority Control of Large Space Structures by Using Tendon Control System" AIAA Journal of Guidance, Control, and Dynamics. 11-4. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] OKUBO, Hiroshi.: "Structural Control by Using Avtive Tendon Systems" 16th International Symposium on Space Technology and Science Sapporo, May 22-27, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] MUROTSU, Yoshisada.: "Dynamics of Tendon Vibration Control System for Flexible Beam" Transactions of the Japan Sciety for Mechanical Engineers.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] MUROTSU,Yoshisada: "Tendon Control System for Flexible Space Structures" Bull. of the Univ. of Osaka Prefecture, Ser.A. 34-1. 1-11 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] MUROTSU,Yoshisada: "An Approach to Optimum Design of Output Feedback Control %system for Flexible Space Structures" Bull. of the Univ. of Osaka Prefecture, Ser.A. 34-2. 137-145 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] MUROTSU,Yoshisada: "Tendon Control of Flexible Structures - A Hardware Demonstration" Bull. of the Univ. of Osaka Prefecture, Ser.A. 35-2. 101-109 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] OKUBO,Hiroshi: "Failre Detection and Identification in the Control of Large Space Structures" Proc. of the 10th IFAC World Congress on Automatic Control. 6. 172-177 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] OKUBO,Hiroshi: "Research on Tendon Control System for Flexible Structures" Proc. of the IMACS/IFAC Int. Conf. on Modelling and Simulation of Destributed Parameter Systems. 647-654 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] MUROTSU,Yoshisada: "Low-Authority Control of Large Space Structures by Using Tendon Control System" AIAA Journal of Guidance, Control, and Dynamics. 11-4. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] OKUBO,Hiroshi: "Structural Control by Using Abtive Tendon Systems" 16th International Symposium on Space Technology and Science Sapporo, May 22-27, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] MUROTSU,Yoshisada: "Dynamics of Tendon Vibration Control System for Flexible Beam" Transactions of the Japan Sciety for Mechanical Engineers.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 室津義定: Bull.Univ.Osada pref.,Series A. 35. 101-109 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 大久保博志: Proc.of loth World Congress on Automatic Control,IFAC.

    • Related Report
      1986 Annual Research Report
  • [Publications] 室津義定: Proc.of AIAA Guidance,Navigation and Control Conf.,Monterey,Aug.17-19,1987.

    • Related Report
      1986 Annual Research Report
  • [Publications] 室津義定: Proc.of 13th IFIP Conference on System Modeling and Optimization,Tokyo,Aug.31-Sept.4,1987.

    • Related Report
      1986 Annual Research Report
  • [Publications] 大久保博志: Proc.of IMACS/IFAC Int.Symp.on Modeling and Simulation of Distributed Parameter Systems,Hiroshima,Oct.6-9,1987.

    • Related Report
      1986 Annual Research Report
  • [Publications] 室津義定: 日本機械学会関西支部第147回講習会教材. 49-60 (1987)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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