GAO Ming-hui, YANG Jin-song, DUAN Ying-hong, WU Qing-wen, REN Jian-yue, PAN Zhe. Support technique of a deployable unit mirror[J]. Editorial Office of Optics and Precision Engineering, 2004,(4): 398-401
GAO Ming-hui, YANG Jin-song, DUAN Ying-hong, WU Qing-wen, REN Jian-yue, PAN Zhe. Support technique of a deployable unit mirror[J]. Editorial Office of Optics and Precision Engineering, 2004,(4): 398-401DOI:
Based on the deployable structure of a mirror and the operation principle
the finite element method was used to analyze the unit naked mirror and some different mirror support schemes. The principal aim of the naked mirror analysis is to get the numbers of the support points and the ways of the support. There are three schemes including 12-6-1
12-8-1 and 16-8-1 models. Deformation of the deadweight is calculated under the three conditions. The way of 16-8-1 is more suitable than the designs of other two. The optimum design of the support structure is based on the surface figure error and the structure rigidity. Support subassembly is amended to meet with the mirror surface RMS in the range of 30 μm.Deformation of the mirror with support structure has been calculated. The result is 16.52 nm
lower than a quarter of the wavelength
which indicates the feasibility of the support scheme applied to unit mirror.
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references
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