Improvement on hydraulic whiffletree support system for SiC lightweight primary mirror

	Improvement on hydraulic whiffletree support system for SiC lightweight primary mirror
	Shao L.; Wu X.; Yang F.; Fan L.; Li J.
	2014
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN	ISBN/10072276
卷号	43 期号:11 页码:3820-3824
摘要	Improved hydraulic whiffletree passive support system was designed for 2 m SiC lightweight primary mirror. The lever counterweight mechanism connected to hydraulic whiffletree mechanism was used for axial support system. The axial support force optimization distribution in different support points was accomplished by the axial support system, and the root-mean-square (RMS) of the mirror distortion resulted by axial support system was improved from 7.1 nm to 4.8 nm, which was optimized by finite element analysis (FEA) method. Considering the large thermal expansion coefficient of SiC, tangent link mechanism which owned adaptive bucking thermal stress attribute combined with hydraulic whiffletree mechanism was applied to the lateral support system for SiC primary mirror. When telescope was printed to horizon, the mirror distortion caused by the lateral support system was analyzed, and 39.7 nm RMS of the primary mirror deformation was obtained by FEA. As the ambient temperature raised from 20 to 40, the mirror distortion resulted by the axial support and lateral support system was still kept on the level of 4.8 nm RMS. Analysis result indicates well thermal adaptability of the improved lateral support system.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44069
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Shao L.,Wu X.,Yang F.,et al. Improvement on hydraulic whiffletree support system for SiC lightweight primary mirror[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2014,43(11):3820-3824.
APA	Shao L.,Wu X.,Yang F.,Fan L.,&Li J..(2014).Improvement on hydraulic whiffletree support system for SiC lightweight primary mirror.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,43(11),3820-3824.
MLA	Shao L.,et al."Improvement on hydraulic whiffletree support system for SiC lightweight primary mirror".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 43.11(2014):3820-3824.

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