Performance analysis of hardpoint positioning mechanism for 4 m SiC primary mirror

doi:10.3788/IRLA201948.0418004

CIOMP OpenIR

	Performance analysis of hardpoint positioning mechanism for 4 m SiC primary mirror
	M.Wei; X.Wu; Z.Gao; R.Wang
	2019
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN	10072276
卷号	48 期号:4
摘要	In order to ensure the position accuracy and the stiffness of the support system for the 4 m SiC primary mirror, the parameters of hardpoints in a hexapod configuration were analyzed according to the optical indexes of the primary mirror support system. Using the finite element method, the hardpoint positioning mechanism was optimized. The hardpoint distribution radius, positioning angle, axial stiffness and the limit of axial tension and compression were determined by the finite element software. The analysis results show that six hardpoints should be equally distributed at 1 345 mm of the radius on the circumference in the primary mirror backface. When the axial stiffness of the hardpoint reaches 15 000 N/mm, the natural frequency of the primary mirror support system is greater than or equal to 15 Hz. It can meet the design requirements and provide the basis for the following design optimization. 2019, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
关键词	Boron compounds,Finite element method,Mirrors,Silicon carbide,Silicon compounds,Stiffness
DOI	10.3788/IRLA201948.0418004
URL	查看原文
收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/62957
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	M.Wei,X.Wu,Z.Gao,et al. Performance analysis of hardpoint positioning mechanism for 4 m SiC primary mirror[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2019,48(4).
APA	M.Wei,X.Wu,Z.Gao,&R.Wang.(2019).Performance analysis of hardpoint positioning mechanism for 4 m SiC primary mirror.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,48(4).
MLA	M.Wei,et al."Performance analysis of hardpoint positioning mechanism for 4 m SiC primary mirror".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 48.4(2019).

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