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Proceedings Paper

The design of support structure of mirror subassembly of space remote sensor
Author(s): Ke-jun Wang; Ji-hong Dong; Wei Li; Quan-feng Guo; Yan-chun Li; Wei-guo Zhao; Hai-ping Wang; Ming Xuan
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Paper Abstract

The support structure of large aperture mirror of space remote sensor is the key of the space remote sensor development. In this paper, the size of the large aperture mirror is Φ700mm,which is supported in the back of mirror with 3 points ,the composite structure of ball joint and flexible groove is adopted in support structure which can guarantee the mirror surface satisfy the requirement of optical design under the coupled load of gravity and heat. At the same time, the mirror subassembly should have a high enough stiffness through the reasonable lightweight to ensure the camera in transportation and launch process can withstand severe vibration condition. In order to validate the rationality of the design,the finite element analysis is done to the mirror subassembly,which indicates that the shape error variation of mirror RMS is better than λ/50 and PV is better than λ/10 in the coupling load of gravity and heat,and the first natural frequency of the mirror subassembly is higher than the design requirements. Dynamics calculation results of mirror subassembly consistent with mechanics experiment results;the surface precision of the mirror subassembly obtained from the ZYGO interferometer consistent with the results of finite element analysis and meets the design requirements.

Paper Details

Date Published: 2 September 2014
PDF: 7 pages
Proc. SPIE 9280, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 928002 (2 September 2014); doi: 10.1117/12.2069786
Show Author Affiliations
Ke-jun Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Univ. of Chinese Academy of Sciences (China)
Ji-hong Dong, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Wei Li, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Quan-feng Guo, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Yan-chun Li, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Wei-guo Zhao, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Hai-ping Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Ming Xuan, Changchun Institute of Optics, Fine Mechanics and Physics (China)


Published in SPIE Proceedings Vol. 9280:
7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Wenhan Jiang; Myung K. Cho; Fan Wu, Editor(s)

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