F5 ゴサマー宇宙構造物の経験的モデル低次元化(宇宙構造(1))

概要

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In recent years, the use of membranes for space craft applications has attracted a great deal of attention, as so called gossamer structures. However gossamer structures do not have practical applications at present. One problem in space research is design time reduction. Currently, JAXA is working on a spin type solar power sail spacecraft. Computational analysis of the sail membrane's complex mathematical model is difficult and time consuming. Therefore this has a negative impact on design problems. The model reduction technique is required. With a feasible shortened computational analysis period, a trade-off would be possible when designing and determining the operation procedure. It is a necessary tool in order to put the gossamer structure to practical use.In this presentation, the dynamic property of the square type spinning solar sail is revealed, and the requirements for constructing a reduction model are revealed. Then, empirical model reduction techniques are applied to gossamer structures, and the issue of constructing a low-order model is summarized.
一般社団法人日本機械学会の論文
2010-01-28