摘要
介绍了基础激励下机构随机振动响应的理论与分析方法.利用有限元分析软件ANSYS建立了某空间望远镜相关跟踪系统摆镜的有限元模型,并进行了随机振动响应分析.通过分析考察了其承受动力学环境的能力.对计算结果进行了分析.指出了现有结构中的薄弱环节,提出了改进方案,为摆镜的设计提供了重要参考依据.
The analysis method of structural random vibration response by the base excitation is described. The finite element model of tip/tilt mirror is established and its vibration analysis is performed by the finite element software ANSYS. So that we can research the performance of tip/tilt mirror against the dynamic environment. The results have been analyzed. By analyzing the weakness of the present structure ,an anti-vibration suggestion is put forward, which is useful to improve the structure, and reform for the further development of tip/tilt mirror.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2009年第12期3226-3229,共4页
Acta Photonica Sinica
关键词
随机振动分析
摆镜
有限元
Random vibration analysis
Tip/tilt mirror
Finite element
