| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Research Abstract |
A structural concept to incorporate elastic beams permitting large deformation in a membrane is proposed to stabilize its large displacement behavior. As a specific model of the hybrid structure, an inflatable coilable mast, composed of an inflatable tube and elastic beams, is investigated. Retraction and deployment experiments of four kinds of models clarified important design parameters. And in the experiments, one model could retract compactly. Numerical analysis technique for such structures is also established in this research. Numerical calculations showed that incorporating elastic beams improved the shape repeatability during retraction and deployment. Furthermore, it was found that the method could preliminarily estimate the state of membrane.
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