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

doi:10.3788/OPE.20192707.1552

CIOMP OpenIR

	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
	2019
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	27 期号:7 页码:1552-1560
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.
关键词	Mirrors，Thermal gradients
DOI	10.3788/OPE.20192707.1552
URL	查看原文
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/181722/62871
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.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Influence of radial （932KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载