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Lightweight structure design for supporting plate of primary mirror
Wang, Xiao1,2; Wang, Wei1; Liu, Bei1,2; Qu, Yan Jun1,2; Li, Xu Peng1,2
2017
会议名称Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
会议录名称AOPC 2017: Space Optics and Earth Imaging and Space Navigation
卷号10463
会议日期2017-06-04
会议地点Beijing, China
出版者SPIE
产权排序1
摘要

A topological optimization design for the lightweight technology of supporting plate of the primary mirror is presented in this paper. The supporting plate of the primary mirror is topologically optimized under the condition of determined shape, loads and environment. And the optimal structure is obtained. The diameter of the primary mirror in this paper is 450mm, and the material is SiC1. It is better to select SiC/Al as the supporting material. Six points of axial relative displacement can be used as constraints in optimization2. Establishing the supporting plate model and setting up the model parameters. After analyzing the force of the main mirror on the supporting plate, the model is applied with force and constraints. Modal analysis and static analysis of supporting plates are calculated. The continuum structure topological optimization mathematical model is created with the variable-density method. The maximum deformation of the surface of supporting plate under the gravity of the mirror and the first model frequency are assigned to response variable, and the entire volume of supporting structure is converted to object function. The structures before and after optimization are analyzed using the finite element method. Results show that the optimized fundamental frequency increases 29.85Hz and has a less displacement compared with the traditional structure. © 2017 SPIE.

作者部门空间光学应用研究室
DOI10.1117/12.2285730
收录类别EI ; ISTP
ISBN号9781510614079
语种英语
ISSN号0277786X
引用统计
文献类型会议论文
条目标识符http://ir.opt.ac.cn/handle/181661/29871
专题空间光学应用研究室
作者单位1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, No.17, Xinxi Road, Xi'an,710119, China
2.University of Chinese, Academy of Science, Jingjia Road, Beijing, 100049, China
推荐引用方式
GB/T 7714
Wang, Xiao,Wang, Wei,Liu, Bei,et al. Lightweight structure design for supporting plate of primary mirror[C]:SPIE,2017.
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