Stepwise deployments of membrane structure with rolled-up CFRP bi-Convex booms

Nobukatsu Okuizumi, Hiroyuki Ikuta, Shinya Hakata, M. C. Natori, Akihito Watanabe, Hiroshi Yamakawa

    研究成果: Conference contribution

    1 被引用数 (Scopus)


    Stepwise deployments of a membrane structure with rolled-up booms have been investigated. The boom consists of two bi-convex tapes covered by a braid sleeve. The boom can be smoothly rolled up and unrolled by elastic deformation. In this paper, new lightweight booms consists of tri-axial woven fabric CFRP convex tapes with 800 millimeter long are introduced to reduce the weight and to enlarge the structure. First of all, in order to study the mechanical properties of the boom, three point bending test and vibration test of are carried out. Then deployment experiments of four booms rolled-up around a central hub are conducted to confirm that the booms can be fully deployed under gravity. Subsequently, deployment experiments of the booms with a square membrane folded by the modified spiral folding are conducted. To prevent lateral buckling of the booms due to the weight of the membrane, a simple gravity compensation method using suspension strings is devised. Deployment experiments of several deployment patterns are successfully performed and the effects of the stepwise deployments are clearly demonstrated. Finally, numerical model of the structure is created by employing the multiple particle approximation method and stepwise deployment simulations are conducted.

    ホスト出版物のタイトル3rd AIAA Spacecraft Structures Conference
    出版社American Institute of Aeronautics and Astronautics Inc, AIAA
    出版ステータスPublished - 2016
    イベント3rd AIAA Spacecraft Structures Conference, 2016 - San Diego, United States
    継続期間: 2016 1月 42016 1月 8


    Other3rd AIAA Spacecraft Structures Conference, 2016
    国/地域United States
    CitySan Diego

    ASJC Scopus subject areas

    • 航空宇宙工学
    • 機械工学
    • コンピュータ サイエンスの応用
    • 電子工学および電気工学


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