Optimization design of an ultralight large-aperture space mirror

doi:10.1364/AO.445384

CIOMP OpenIR

	Optimization design of an ultralight large-aperture space mirror
	W. Hao; J. Guo; M. Shao; J. Sun; F. Tian and X. Yang
	2021
发表期刊	Applied Optics
ISSN	1559128X
卷号	60 期号:35 页码:10878-10884
摘要	The ultralight space mirror has long been a hot topic in the research field of space telescopes. In this paper, an ultralight mirror is designed by obtaining the structure and parameters of a mirror with an aperture of 2 m through experimental design and multiobjective integrated optimization. Specifically, the materials near the neutral surface were replaced with elliptical holes. The back of the mirror was supported at three points. Finite-element analysis shows that the mirror had a surface figure error of 10.4 nm under 1 g in the x direction (gravity direction), which is sufficiently high to be applied to visible light optical systems. Further, the eigenfrequencies of mirror components were obtained through finite-element analysis: 70 Hz in the x direction, 70 Hz in the y direction, and 90 Hz in the z direction. The results demonstrate the excellent dynamics performance of the designed mirror. Compared with test results, the relative error of eigenfrequencies was within 4%. Hence, our ultralight design outputs reliable optimization results and applies to the development of large-aperture ultralight space mirrors. Finally, the ultralight mirror was prepared from reaction-bonded silicon carbide. The mass and surface density of the prepared mirror were 105 kg and 34 kg/m2, respectively. The mirror mass was 50% lighter than that of the mirrors designed by traditional lightweight methods. 2021 Optica Publishing Group
DOI	10.1364/AO.445384
URL	查看原文
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65501
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	W. Hao,J. Guo,M. Shao,et al. Optimization design of an ultralight large-aperture space mirror[J]. Applied Optics,2021,60(35):10878-10884.
APA	W. Hao,J. Guo,M. Shao,J. Sun,&F. Tian and X. Yang.(2021).Optimization design of an ultralight large-aperture space mirror.Applied Optics,60(35),10878-10884.
MLA	W. Hao,et al."Optimization design of an ultralight large-aperture space mirror".Applied Optics 60.35(2021):10878-10884.

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
Optimization design （9004KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载