3309 小型衛星用太陽光反射膜面のしわ特性

概要

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A small satellite named INDEX has been developed in ISAS, which is a piggy-back satellite for H-IIA launch vehicle. Its objectives are engineering experiments and aurora observation. The satellite has a pair of deployable solar array paddles with novel reflectors. The reflector consists of a pretensioned rectangular Teflon film with a vapor-deposited silver coat, tension springs and a CFRP frame. As the pretensioned membrane inevitably had wrinkles, a prototype reflector was produced to examine the influence of wrinkles on the reflection performance. For the purpose, deformed shapes of the membrane under gravity were measured for two configurations and the wrinkles under zero gravity were approximately obtained from the results. The reflecting efficiency and the reflected sunlight intensity distribution on solar cell surface were estimated. It was quantitatively confirmed that the wrinkles had bad influence on the performance of solar reflector.
一般社団法人日本機械学会の論文
2003-08-05