Design and optimization of 1.2-m primary mirror supporting systems

被引：0

作者：

Chen Kewei ^{[1
]}

Jia Dan ^{[1
]}

Ying Zhongliang ^{[1
]}

Zhang Zhige ^{[1
]}

Pan Nian ^{[1
]}

Huang Jinlong ^{[1
]}

Wang Kunpeng ^{[2
]}

Xue Li ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China

[2] Beijing Inst Tracking & Telecommun Technol, Beijing 100094, Peoples R China

来源：

10TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES | 2021年 / 12070卷

基金：

中国科学院西部之光基金;

关键词：

optimization; axial support system; lateral support system; surface deformation; ACTIVE OPTICS;

D O I：

10.1117/12.2604579

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The 1.2-m primary mirror supporting systems are composed of axial support system with whiffletree structure and lateral support system with 6 tangent links With the simulation based on the finite element analysis (FEA), the 18 points positions of the axial support are determined and the bottom chamber structure of the primary mirror is improved. In order to reduce the mirror surface deformation, the assembly stress on the primary mirror is reduced by optimizing the lateral support structure. The analysis results demonstrated that the root-mean-square (RMS) of the surface deformation is 10.9nm when the primary mirror points vertically. Meanwhile the RMS of the surface deformation is 10.3nm when the primary mirror points horizontally.

引用

页数：8

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