Influence of radial temperature gradient on surface figure of lightweight reflective mirror

doi:10.3788/OPE.20192707.1552

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Influence of radial temperature gradient on surface figure of lightweight reflective mirror
	X.Yang; S.-Y.Xu; H.-C.Ma; X.-S.Zhang; X.-B.Li
刊名	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
	2019
卷号	27 期号:7 页码:1552-1560
关键词	Mirrors，Thermal gradients
ISSN号	1004924X
DOI	10.3788/OPE.20192707.1552
英文摘要	To analyze the effects of radial temperature gradients on the surface figures of lightweight reflective mirrors, a 2-m-aperture lightweight mirror of a space camera was taken as the research object and a finite element model of the mirror was established. The effects of different radial temperature gradients and lightweight structures on the surface figure Root Mean Square (RMS) values of reflective mirrors was analyzed, and the accuracies of a simulation method and conclusions were verified through an experiment. In addition, the coupling effects of different lightweight structures and radial temperature gradients on the mirror surface figure were studied. Results show that the surface figure RMS values derived from the radial temperature gradients of different distribution modes can differ by a maximum of 294 times, and the surface shape error caused by the radial gradient is difficult to reduce when optimizing the mirror support scheme. The mirror surface figures of different lightweight structures are different for the radial temperature gradient sensitivities of different distribution modes. The lightweight methods of trefoil and symmetric chamfering are thermally stable to the mirror in a specific radial temperature field distribution mode. Finally, sensitivity has an adverse effect. 2019, Science Press. All right reserved.
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/62871]
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	X.Yang,S.-Y.Xu,H.-C.Ma,et al. Influence of radial temperature gradient on surface figure of lightweight reflective mirror[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2019,27(7):1552-1560.
APA	X.Yang,S.-Y.Xu,H.-C.Ma,X.-S.Zhang,&X.-B.Li.(2019).Influence of radial temperature gradient on surface figure of lightweight reflective mirror.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,27(7),1552-1560.
MLA	X.Yang,et al."Influence of radial temperature gradient on surface figure of lightweight reflective mirror".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 27.7(2019):1552-1560.