摘要
平行光管中主反射镜的口径最大,支撑也最困难.对用于平行光管设备中口径为1000 mm的主反射镜浮动支撑进行了优化分析.利用ANSYSY中强大的优化分析模块对主反射镜在3点、9点、18点、24点和27点5种不同支撑点数量下的模型进行了优化.最后对这5种优化模型都给出了自重变形分析,得出了主反射镜镜面变形云图并计算出对应的PV值和RMS值.综合考虑了镜面面型要求和工艺性等后,确定了最佳支撑点数为18点,并且点的分布遵循优化模型.
How to support the Mirror,especially the primary mirror is one of the most difficulties to design a large aperture and long focal length collimator.The number and the location of support points for collimator primary mirror are optimized.The diameter of primary mirror is 1 000 mm.The formidable optimization analysis module of ANSYS is used to optimize the primary mirror＇s model in condition of 3,9,18,24 and 27 different points support.Also,static analysis of five different numbers of points support in gravity field is simulated.From the displacements of five mirror models,the values of PV and RMS respectively are calculated.To satisfy the requirement of PV and RMS,the best case can be given-18 points support.
出处
《光电技术应用》
2010年第2期21-24,共4页
Electro-Optic Technology Application
基金
国家技术改造项目--光学性能系统测试
关键词
主反射镜
支撑
有限元分析
primary mirror
support
finite element analysis
