摘要
本文利用有限元方法对某遮光罩进行了静力、动力及热应力分析，提出了改善遮光罩瓶颈环节的有力措施－结构优化设计的最大刚度化．本文以结构基频的最高化为优化目标函数，对遮光罩进行了动力优化设计，设计结果对遮光罩的基频有一定的提高。
In this paper,an outer baffle′s static,dynamic and thermal stresses are provided by means of finite element analysis.An effective way to improve the dynamic characteristic of the baffle, Maximum Stiffness Design,is presented here.An optimization method maximizing the fundamental frequency of the baffle is introduced.With the optimization,the structural resonances occurred due to environmental loading is decreased while the fundamental frequency of the baffle is increased.
出处
《光子学报》
EI
CAS
CSCD
1999年第1期75-79,共5页
Acta Photonica Sinica
关键词
有限元
结构优化
遮光罩
航天相机
Optimum design of structures
Finite element analysis
Baffle
