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1996 Fiscal Year Final Research Report Summary

Integrated Optimum Design of Structure and Servosystem in Information Processing Equipments

Research Project

Project/Area Number 08455111
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Dynamics/Control
Research InstitutionTokyo Institute of Technology

Principal Investigator

NAGAMATSU Akio  Tokyo Inst.of Tech., Dept.of Mech.Eng.and Science, Professor, 工学部, 教授 (70016640)

Co-Investigator(Kenkyū-buntansha) TSUJIOKA Kazuaki  Tokyo Inst.of Tech., Dept.of Mech.Eng.and Science, Research Associate, 工学部, 助手 (10251646)
KAJIWARA Itsuro  Tokyo Inst.of Tech., Dept.of Mech.Eng.and Science, Research Associate, 工学部, 助手 (60224416)
OKUMA Masaaki  Tokyo Inst.of Tech., Dept.of Mech.Eng.and Science, Associate Prof., 工学部, 助教授 (60160454)
Project Period (FY) 1996
KeywordsServosystem / Vibration / Control / Optimum Design / Modal Analysis / Finite Element Method
Research Abstract

This study presents approaches for optimum design of structure and servosystem to realize higher performances concerning the positioning and the stability. The proposed approaches use the sensitivity analysis and the nonlinear programming method, in which the integrated optimum design of structure and servosystem is taken into consideration. The performance specifications of the control system are generally expressed as the cahracteristics on frequency and time domains Therefore, this study considers two types of the servosystem, namely one is composed of dynamic compensator such as phase-lead and phase-lag compensators in order to deal with the desired frequency characteristics, and the other is composed of LQI control system in which the controller is desighed to achieve the desired transient responses. The original spatial model of a structure with large degrees of freedom (DOF) is made by the finite element method (FEM). The perfomances and the stability of the servosystem depend on the structural characteristics such as the gain and the phase properties of frequency response function (FRF) between the control input and the output signals. Higher performances of the servo properties and stability of the closed-loop system against the high order natural modes are achieved by the integrated optimization presented in this study. Two modal models are made from the original spatial model, namely one is the reduced modal odel of small DOF and the other is the original modal model of medium DOF.The properties of the servosystem composed of the reduced modal model are optimized under the constranit that the closed-loop system composed of the original modal model must be stable. Effectiveness and practicability of the approaches are verified with a simplified model structure of a positioning device.

  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] Tsujioka,K.,etal.: "Integrated Optimum Design of Structure and H^∞ Control System" AIAA Journal. 34,1. 159-165 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 梶原逸朗,他2名: "遺伝的アルゴリズムによる構造物の位相形状最適化" 日本機械学会論文集(C編). 62,597. 1731-1738 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kajiwara,I.,etal.: "Integrated Optimum Design of Structure and Servosystem with Dynamic Compensator" Proceedings of AIAA 37th SDM Conference. cp962. 1005-1015 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 曽根原努,他4名: "モード解析を用いたトラックキャブのH^∞ロバスト振動制御" 自動車技術会論文集. 27,4. 83-87 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kajiwara,I.,etal.: "Concurrent Optimum Design of Structure and H^∞ Control System by Genetic Algorithm" Proceedings of JSME 3rd MOVIC. 3. 327-332 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kajiwara,I.,etal.: "An Integration of Experimental State-Space Modeling Based on ERA and H^∞ Control Design" JSME International Journal. 40,2. (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 長松昭男,他4名: "音・振動のモード解析と制御" コロナ社, 258 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kajiwara, I., et al.: "An Integration of Experimental State-Space Modeling Based on ERA and H^* Control Design" JSME International Journal (C). Vol.40, No.2. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tsujioka, K., et al.: "Integrated Optimum Design of Structure and H^* Control System" AIAA Journal. Vol.34, No.1. 159-165 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Guo, Z., et al.: "State-Space Modeling, Uncertainty Descriptions and H^*/mu/upsiron Control Design for Vibration Suppression" Proceedings of AIAA 38th SDM Conference. (to appear). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kajiwara, I., et al.: "Concurrent Optimum Design of Structure and H^* Control System by Genetic Algorithm" Proceedings of JSME 3rd MOVIC. Vol.3. 327-332 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kajiwara, I., et al.: "Integrated Optimum Design of Structure and Servosystem with Dynamic Compensator" Proceedings of AIAA 37th SDM Conference. CP962. 1005-1015 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kajiwara, I., et al.: "Structural Topology Optimization by Genetic Algorithm" Trans.JSME. Vol.62 (C), No.597. 1731-1738 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sonehara, T., et al.: "H^* Robust Vibration Control of a Truck Cab using Modal Analysis" Journal of JSAE. Vol.27, No.4. 83-87 (1996)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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