Thermal control analysis of a primary mirror for large-aperture telescope

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 光电工程总体研究室（一室）

	Thermal control analysis of a primary mirror for large-aperture telescope
	Tan, Yufeng 1,2; Wang, Jihong 1; Ren, Ge 1; Xie, Zongliang 1,2; He, Bi 1,2
刊名	Journal of the Korean Physical Society
	2017
卷号	71 期号:1 页码:28-36
关键词	Lightweighted primary mirror Thermal control Finite element analysis Image quality
ISSN号	0374-4884
英文摘要	Extraneous thermal loads on the primary mirror of a large-aperture telescope directly influence the optical performance of the telescope through temperature gradients within the mirror and thermal boundary layer at the face sheet. In this paper, we propose a new thermal control system consisting of a flushing and sucking system for eliminating the excessive heat of a primary mirror. First, a 2.8 m-aperture lightweighted primary mirror is fabricated. Second, a thermo-optic analysis using finite element analysis is conducted in natural and forced convection. Finally, the optical performance denoted by Zernike polynomials with and without our proposed thermal control system is evaluated and examined. The comparative results reveal that the image quality of the primary mirror in forced convection is significantly enhanced with obvious reduction of optical surface distortion, thereby demonstrating the effectiveness of our proposed thermal control system.
语种	英语
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/8831]
专题	光电技术研究所_光电工程总体研究室（一室）
作者单位	1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China 2.Chinese Acad Sci, Key Lab Opt Engn, Chengdu 610209, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Tan, Yufeng,Wang, Jihong,Ren, Ge,et al. Thermal control analysis of a primary mirror for large-aperture telescope[J]. Journal of the Korean Physical Society,2017,71(1):28-36.
APA	Tan, Yufeng,Wang, Jihong,Ren, Ge,Xie, Zongliang,&He, Bi.(2017).Thermal control analysis of a primary mirror for large-aperture telescope.Journal of the Korean Physical Society,71(1),28-36.
MLA	Tan, Yufeng,et al."Thermal control analysis of a primary mirror for large-aperture telescope".Journal of the Korean Physical Society 71.1(2017):28-36.