Changchun Institute of Optics,Fine Mechanics and Physics,CAS
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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SiC轻量化主镜液压whiffletre(1153KB) | 开放获取 | CC BY-ND | 浏览 下载 |
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