Study of electro Rheological fluid damper for microgravity experiment

Kazuki Watanabe, Hiroshi Yamakawa

    研究成果: Conference contribution

    抄録

    When a passive damping system is applied for the purpose of improving the microgravity environment to make the experimental missions successfully, it is desirable to give the extremely soft and flexible support in it's stiffness to enhance the vibration reduction performance. However, the payload damping system should be designed to withstand any disturbing force and stabilize payload even when a large force occurred by spacecraft attitude/orbit maneuvering or operation of other moving parts. In terms of the passive dampers, the damper performance for g-jitter reduction depends strongly on the damping parameter, i.e., setting low damping value is effective to reduce the g-jitter in high frequency band while the magnification factor at resonance frequency increases conversely. An experimental device of semi-actively controlled damper using ERF has been manufactured. This ERF damper consists mainly of the membranes and electrode. The manufactured ERF damper has a possibility to solve the above-mentioned problems when some appropriate controls are performed. This paper describes the feasibility studies of the ERF damper application techniques for microgravity experimental facilities with feedback system using LQG control.

    本文言語English
    ホスト出版物のタイトル44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
    出版ステータスPublished - 2003
    イベント44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2003 - Norfolk, VA
    継続期間: 2003 4 72003 4 10

    Other

    Other44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2003
    CityNorfolk, VA
    Period03/4/703/4/10

    ASJC Scopus subject areas

    • 土木構造工学
    • 材料力学
    • 建築および建設
    • 建築

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