文档介绍：小型反射镜中心支撑技术
北京锦坤科技有限公司
谭进国 1,2,何欣 1,付亮亮 1
(1. 中国科学院长春光学精密机械与物理研究所,吉林长春 130033;
2. 中国科学院研究生院,北京 100039)
摘要: 所述空间遥感器反射镜的工作温度为 18±15℃,要求反射镜在此复杂工况条件下满足设计要求。介
绍了反射镜材料和支撑结构材料的选择;对反射镜的支撑方式、轻量化等方面进行了分析讨论;根据反射
镜柔性支撑结构的设计原理,采用 CAD/CAE 工程软件进行了分析及优化,通过有限元法优化设计了一种
反射镜中心支撑的柔性结构,在此温度变化范围内,反射镜面形误差变化量 PV 值小于λ/10、RMS 值小
于λ/40(λ= nm)。最后,通过力学环境实验测试反射镜面形变化量和反射镜组件模拟件的动态特性,
证明该结构满足设计要求。
关键词: 中心支撑; 小型反射镜; 柔性结构
中图分类号: TH122 文献标志码: A 文章编号: 1007-2276(2010)06-1070-05
Support technique in centre of minitype reflector
TAN Jin-guo1,2, HE Xin1, FU Liang-liang1
(1. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences,
Changchun 130033, China ;
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China)
Abstract: The working temperature of space remote sensor reflector is 18 ±15 ℃ in this article, and
the reflector in plex working condition needs to meet the design requirements. The choices of the
reflector materials and the supporting structure materials were introduced. The supporting way and the
lightweight structure of the reflector and so on were discussed. According to the design principles of the
flexible supporting structure of the reflector and using CAD/CAE engineering software for analysis and
optimization, a kind of reflector flexible structure of centre support was designed by means of finite
element me