OPT OpenIR  > 空间光学应用研究室
Lightweight Design of Multi-Objective Topology for a Large-Aperture Space Mirror
Qu, Yanjun1,2; Jiang, Yanru1,2; Feng, Liangjie1; Li, Xupeng1,2; Liu, Bei1,2; Wang, Wei1,2
Department空间光学应用研究室
2018-11
Source PublicationAPPLIED SCIENCES-BASEL
ISSN2076-3417
Volume8Issue:11
Contribution Rank1
Abstract

For a large-aperture space telescope, one of the key techniques is the method for designing the lightweight primary mirror assembly (PMA). In order to minimize the mirror surface error under axial gravity, lateral gravity, and polishing pressure at the same time, a method for topology optimization with multi-objective function combined with parametric optimization is introduced in this paper. The weighted compliance minimum is selected as the objective function to maximum the mirror structural stiffness. Then sensitivity analysis method and size optimization are used to determine the mirror structure parameters. Compared with two types of commonly used lightweight configurations, the new configuration design shows obvious superiority. In addition, the surface figure root mean square (RMS) of the mirror mounted by given bipod flexure (BF) under 1 g lateral gravity is minimized only with a value of 3.58 nm, which proves the effectiveness of the design method proposed in this paper.

KeywordMulti-objective Topology Optimization Sensitivity Analysis Space Mirror Lightweight Structure
DOI10.3390/app8112259
Indexed BySCI
Language英语
WOS IDWOS:000451302800249
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/30872
Collection空间光学应用研究室
Corresponding AuthorWang, Wei
Affiliation1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Qu, Yanjun,Jiang, Yanru,Feng, Liangjie,et al. Lightweight Design of Multi-Objective Topology for a Large-Aperture Space Mirror[J]. APPLIED SCIENCES-BASEL,2018,8(11).
APA Qu, Yanjun,Jiang, Yanru,Feng, Liangjie,Li, Xupeng,Liu, Bei,&Wang, Wei.(2018).Lightweight Design of Multi-Objective Topology for a Large-Aperture Space Mirror.APPLIED SCIENCES-BASEL,8(11).
MLA Qu, Yanjun,et al."Lightweight Design of Multi-Objective Topology for a Large-Aperture Space Mirror".APPLIED SCIENCES-BASEL 8.11(2018).
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