Active support system for 1-m SONG primary mirror

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	Active support system for 1-m SONG primary mirror
	Dongsheng Niu; Guomin Wang; Bozhong Gu
	2012-05-31
发表期刊	Journal of Instrumentation
卷号	7 期号:5 页码:T05001-10
摘要	Chinese-node telescope of Stellar Observations Network Group (SONG) has a primary mirror 1m in diameter with flat back, which will be supported actively. The performance evaluation of the telescope’s active optics system is conducted. Finite element analysis (FEA) is employed to analyze the optical surface figures of the primary mirror, and two optimizations are carried out by using ANSYS: (1) the locations and forces of axial supports are optimized with the telescope pointing to zenith; (2) the lateral support forces are calculated with the telescope pointing to horizon. Axial support force sensitivities are calculated in a case that a single axial support has a force error of 0.5N. The correction ability of the active support system is analyzed when an arbitrary axial support is failure. Several low order Zernike modes are modeled with MATLAB procedure, and active optics corrections are applied to these modes. Thermal deformation of the mirror is also corrected using active support system.
关键词	Overall Mechanics Design (Support Structures And Materials Vibration Analysis Etc) Instrument Optimisation
学科领域	主动光学
WOS记录号	WOS:000305419700032
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.niaot.ac.cn/handle/114a32/640
专题	期刊论文
推荐引用方式 GB/T 7714	Dongsheng Niu,Guomin Wang,Bozhong Gu. Active support system for 1-m SONG primary mirror[J]. Journal of Instrumentation,2012,7(5):T05001-10.
APA	Dongsheng Niu,Guomin Wang,&Bozhong Gu.(2012).Active support system for 1-m SONG primary mirror.Journal of Instrumentation,7(5),T05001-10.
MLA	Dongsheng Niu,et al."Active support system for 1-m SONG primary mirror".Journal of Instrumentation 7.5(2012):T05001-10.

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