Fundamental study of hybrid deployable structures composed of inflatable membrane and elastic beams
| Project/Area Number |
23760765
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Aerospace engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OGI Yoshiro 東京大学, 生産技術研究所, 特任講師 (00512005)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| 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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| Keywords | 航空宇宙工学 / 展開構造物 / 空気膜 / インフレータブル構造物 / 機械要素 / 建築構造 / 弾性梁 / 再現性 / インフレータブル構造 / インフレータブル / 建築構造・材料 |
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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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Report
(4 results)
Research Products
(5 results)
