| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
The novel bi-convex boom, which can be rolled-up into small radius of curvature and has as high stiffness as the closed cross-section beam after the deployment, was proposed and its mechanical property, especially the characteristics of storage and self-extension was clarified theoretically. The validity of the theory was verified by the experiment. The design method of the self-extensible/self-deployable structure consisting of the proposed booms was clarified by using the presented theory. New structure-conserved explicit time-integration algorithm of the self-extension dynamics of 2-nodes 1-boom truss using the proposed boom was formulated and its validity was verified by the numerical simulation. The proto-type of the self-deployable truss consisting of 19 nodes and 42 booms was produced. The experimental result showed that the proposed truss structure has high performance for asynchronous deployment so that it is suitable for future large space structure.
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