基于ANSYS的某航天光学指向摆镜系统的随机振动分析

Random vibration analysis on swing mirror system of space optical based on ANSYS

利用ANSYS有限元分析软件对某一航天光学指向摆镜系统结构进行了动力学仿真分析,首先进行了模态分析,在此基础上进行了随机振动的加速度PSD(Power Spectral Density)分析,通过分析,确定了摆镜系统的相关参数。结果表明:新型设计的指向摆镜满足总体设计要求。

The dynamic simulation of Swing mirror structure is done via ANSYS,a FEA（Finite Element Analysis）software program. First,the modal analysis is done ,then the PSD （Power spectral Density） analysis of random vibration is studied. Make out the frequency parameter of the system. The system can satisfy the request of the collectivity.