中国光学2012，Vol.5Issue(3)：222-228,7.
大口径主镜轻量化结构参数的优化设计
Optimized design of lightweight structural parameters for large-aperture primary mirror
摘要
Abstract
As for the lightweight structure of a large-aperture primary mirror in remote sensors,this paper introduces an optimized multi-target Genetic Algorithm（GA） based on the Kriging approximate model to design all lightweight structure paramaters for a 2 m-aperture SiC primary mirror.The latin hypercube method is used to build the Kriging model and do the experimental design of optimized parameters,and then a optimal solution is obtained through the multi-target GA（NSGA II）.After the optimization,the 2 m-aperture SiC primary mirror weights 243 kg,the surface accuracy reaches 25.7 nm PV,4.7 nm RMS and the total lightweight rate is 84%.The experimental result proves the feasibility of this optimization method and it can be a reference for the future lightweight optimization design of the structural parameters of large-aperture primiary mirrors.关键词
空间相机/主镜/轻量化/参数优化/拉丁超立方法/多目标遗传算法Key words
space camera/primary mirror/lightweight/parameter optimization/latin hypercube method/NSGA II分类
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叶伟楠,董吉洪..大口径主镜轻量化结构参数的优化设计[J].中国光学,2012,5(3):222-228,7.基金项目
国家科技部国际科技合作资助项目 （）
