光电工程, 2012, 39 (3): 25, 网络出版: 2012-04-01
大口径平面基准仪反射镜支撑技术
Support Technique in the Large Plain Benchmark Instrument Reflected Mirror
摘要
大口径平面基准仪是在大口径、大视场的空间光学遥感器光学系统装调过程中必须应用的基准工具,随着光学系统的口径和视场的不断增大,平面基准仪口径也不断增大,本文从满足大口径平面基准仪反射镜在复杂的工况下综合面形误差要求的角度出发,介绍了1 000 mm 大口径平面基准仪反射镜及其支撑结构材料的选择,讨论了反射镜的柔性支撑结构的设计方法,并运用CAD/CAE 工程分析软件进行分析及优化,应用有限元法优化出一种合理的反射镜柔性支撑结构。
Abstract
The large plain benchmark instrument is indispensable to assemblage of the large caliber space camera optical system, and the plain benchmark instrument’s caliber is required to be bigger and bigger because the caliber of camera optical system is bigger and bigger. In order to meet the requirements of the integrated precision of the mirror segment used for big space camera, selection of the materials of reflected mirror and supporting structure was introduced, and the design method of the flexible supporting structure of the mirror was proposed, which is analyzed and optimized through CAD/CAE engineering analysis software. Furthermore, a sort of reasonable flexible supporting structure for reflected mirror is optimized by means of Finite Element Method (FEM).
付亮亮, 何欣, 吴谨, 王忠善. 大口径平面基准仪反射镜支撑技术[J]. 光电工程, 2012, 39(3): 25. FU Liang-liang, HE Xina, WU Jin, WANG Zhong-shan. Support Technique in the Large Plain Benchmark Instrument Reflected Mirror[J]. Opto-Electronic Engineering, 2012, 39(3): 25.