Research on positioning mechanism of optical device based on on-orbit replacement

doi:10.3788/OPE.20192710.2233

CIOMP OpenIR

	Research on positioning mechanism of optical device based on on-orbit replacement
	Q.-Y.Li; W.-G.Zhao; Z.Shi; Y.Wang; L.Z.-Y; Y.L.-B
	2019
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	27 期号:10 页码:2233-2240
摘要	A kind of positioning mechanism that ensured large optical device could be replaced quickly was designed in order to realize the on-orbit replacement of a large optical device, and the accuracy of the re-orientation of the device was studied as the key issue of on-orbit replacement. Firstly, a kinematic positioning method that can prevent thermal stress was studied. On the basis of this method, the positioning mechanism was designed. And according to the principle that the microrotation angles of the rigid body are vectors and meets the vector synthesis rule, the mathematical model of the rotation angle of the optical device was derived by the method of synthesizing angular displacement vectors. Then, the beam structure simulating the optical device and frame was designed, simultaneously suspending device was designed based on the common sling suspension method of unloading gravity to imitate the replacement of the device on-orbit in microgravity. Finally, the experimental environment was set up, and the optical device module was repeatedly inserted and taken out of the frame to measure the re-orientation accuracy by theodolites and digital micrometers. The results show that the maximum repeated installation rotational error of the optical device module is 28.8" while the maximum translation error is 0.057 mm. This study provides reference for the design of the positioning mechanism of an on-orbit replaceable device, and has theoretical significance and application value. 2019, Science Press. All right reserved.
关键词	Optical devices,Orbits,Space telescopes,Unloading
DOI	10.3788/OPE.20192710.2233
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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/181722/63251
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	Q.-Y.Li,W.-G.Zhao,Z.Shi,et al. Research on positioning mechanism of optical device based on on-orbit replacement[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2019,27(10):2233-2240.
APA	Q.-Y.Li,W.-G.Zhao,Z.Shi,Y.Wang,L.Z.-Y,&Y.L.-B.(2019).Research on positioning mechanism of optical device based on on-orbit replacement.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,27(10),2233-2240.
MLA	Q.-Y.Li,et al."Research on positioning mechanism of optical device based on on-orbit replacement".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 27.10(2019):2233-2240.

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