Design of athermalized mounting structure for the sub-aperture primary mirror of a synthetic aperture telescope

doi:10.1177/16878140211067044

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	Design of athermalized mounting structure for the sub-aperture primary mirror of a synthetic aperture telescope
	Y. F. Li; Z. X. Li; Q. Yong; T. C. Wang and D. F. Zhang
	2022
发表期刊	Advances in Mechanical Engineering
ISSN	1687-8132
卷号	14 期号:1 页码:11
摘要	The imaging quality of the synthetic aperture system is sensitive to the positioning accuracy of the sub-aperture primary mirror. A novel flexible mounting structure of bimetallic material is proposed for the athermalization of the sub-aperture primary mirror of the Fizeau Synthetic Aperture Telescope - which is composed of seven sub-aperture. The axial position accuracy of the sub-aperture primary mirror must be less than 5 mu m under 10 degrees C temperature rise to meet the requirements of the optical system. Firstly, a single mounting unit is analyzed theoretically, and the initial parameters are determined. The conceptual design of the mounting structure is carried out by using initial parameters. The orthogonal optimization algorithm and range analysis are used to optimize the structural parameters. The finite element model of the flexible mounting structure is established and the coupled thermal-mechanical simulation analysis is performed. Then the thermal sensitivity test of the sub-aperture primary mirror mounting structure was carried out. Under the effect of a temperature rise of 10 degrees C, the axial displacement of the sub-aperture primary mirror mounting surface is less than 3 mu m. Finally, the synthetic aperture system is assembled, and the optical test verifies that the synthetic aperture system has good imaging capabilities.
DOI	10.1177/16878140211067044
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收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66537
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. F. Li,Z. X. Li,Q. Yong,et al. Design of athermalized mounting structure for the sub-aperture primary mirror of a synthetic aperture telescope[J]. Advances in Mechanical Engineering,2022,14(1):11.
APA	Y. F. Li,Z. X. Li,Q. Yong,&T. C. Wang and D. F. Zhang.(2022).Design of athermalized mounting structure for the sub-aperture primary mirror of a synthetic aperture telescope.Advances in Mechanical Engineering,14(1),11.
MLA	Y. F. Li,et al."Design of athermalized mounting structure for the sub-aperture primary mirror of a synthetic aperture telescope".Advances in Mechanical Engineering 14.1(2022):11.

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