Back support structure design of mirror of space remote sensor

doi:10.3788/IRLA201948.0718004

CIOMP OpenIR

	Back support structure design of mirror of space remote sensor
	K.Wang; J.Dong; P.Zhou; X.Wang; P.Jiang
	2019
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN	10072276
卷号	48 期号:7
摘要	In view of the functional requirements of high surface shape error accuracy, high reliability and high stability of mirror support for space remote sensor, a three-point back support structure applied in the mirror support in the field of space was designed, the back support structure included taper sleeve, flexible segment and adjusting pad. The in-depth study was done about support principle and engineering realization of the three-point back support structure. The error source which caused the variation of surface shape error of the three-point back supporting mirror component was summarized, the theory of surface shape variation caused by various error sources was studied, and the corresponding design of the supporting structure was carried out to alleviate the variation of the surface shape error of the mirror caused by various error sources. Firstly, the static and dynamic simulation of the design results were carried out by means of finite element analysis, then the assembled and processed mirror assembly was tested. The results show that the surface shape error of mirror with the three-points support structure is better than /60 (=632.8 nm), the rigid body displacement of mirror is smaller than 0.01 mm, the dip angle is smaller than 2", the mass of the mirror component is smaller than 4.5 kg. The component has a reasonable distribution of modal, the fundamental frequency is 254 Hz, which is higher than the requirement of 120 Hz. The maximum magnification rate of the mirror assembly under sine vibration and random vibration is 1.73 times, and the maximum stress under sine vibration and random vibration is 369 MPa, far lower than the yield limit of the selected material. 2019, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
关键词	Mirrors,Errors,Ground supports,Mechanical testing,Remote sensing,Rigid structures
DOI	10.3788/IRLA201948.0718004
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收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63007
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	K.Wang,J.Dong,P.Zhou,et al. Back support structure design of mirror of space remote sensor[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2019,48(7).
APA	K.Wang,J.Dong,P.Zhou,X.Wang,&P.Jiang.(2019).Back support structure design of mirror of space remote sensor.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,48(7).
MLA	K.Wang,et al."Back support structure design of mirror of space remote sensor".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 48.7(2019).

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