J191013 膜の初期変形が等価剛性に及ぼす影響の検討([J191-01]構造・材料の高度化に向けた宇宙工学と材料力学の展開(1))

  • 山崎 歩
    東京工業大学大学院総合理工学研究科
  • 古谷 寛
    東京工業大学大学院総合理工学研究科

書誌事項

タイトル別名
  • J191013 Effects of Initial Deformation of Membrane on Equivalent Stiffness

抄録

The solar sail is one of the examples of large deployable space membrane structures as Gossamer spacecraft. The structural characteristics are significant to examine the deployment configuration, vibrational and dynamic properties of the membrane structures. The initial deformation on the membrane due to creases and wrinkles is not negligible for evaluating the mechanical properties because its magnitude is very large with respect to the membrane thickness. This paper investigates the effects of relatively large initial deformation of membrane under the assumption that the initial deformations are random with a bandwidth for wavelength. Finally, the stiffness of the membrane can be evaluated the non-dimensional initial deformation of the membrane.

収録刊行物

  • 年次大会

    年次大会 2013 (0), _J191013-1-_J191013-5, 2013

    一般社団法人 日本機械学会

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