Design and analysis of micro stress flexible support structure of reflector in all-day star tracker | |
Liu, Yang; Chen, Su; Wang, Lingguang; Geng, Bo; Wang, Hu; Liu, Jie | |
2017 | |
会议名称 | 2nd International Conference on Photonics and Optical Engineering |
会议录名称 | Second International Conference on Photonics and Optical Engineering |
卷号 | 10256 |
会议日期 | 2016-10-14 |
会议地点 | Xi'an, China |
出版者 | SPIE |
产权排序 | 1 |
摘要 | To reduce the surface deformation of a star tracker reflector in a complex and execrable environment, a micro stress flexible support structure was designed according to the circular optical reflector subassembly. By defining the thickness, width and radius as design variables, the flexible hinge in an circular reflector subassembly was optimized. Then, the surface figure precision, structural strength and dynamic stiffness of the reflector subassembly in the thermal-structural coupling state were analyzed with the finite element method. Simulation results show that the natural frequency of the reflector is enough, which has a sufficiently high dynamic stiffness. Both surface precision RMS of the reflector (8.34nm, 9.26nm) have reached the index requirements of the optical system(λ/10, λ=632.8nm) under gravity and uniform temperature change from -20°C to 65°C. The results show that the design for the micro stress flexible support structure is reasonable and feasible, and achieves the design goal. © 2017 SPIE. |
作者部门 | 空间光学应用研究室 |
DOI | 10.1117/12.2257424 |
收录类别 | EI ; ISTP |
语种 | 英语 |
ISSN号 | 0277786X |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/28848 |
专题 | 空间光学技术研究室 |
作者单位 | Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China |
推荐引用方式 GB/T 7714 | Liu, Yang,Chen, Su,Wang, Lingguang,et al. Design and analysis of micro stress flexible support structure of reflector in all-day star tracker[C]:SPIE,2017. |
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Design and analysis (547KB) | 会议论文 | 限制开放 | CC BY-NC-SA | 请求全文 |
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