摘要
采用混合坐标法建立了某空间光学望远镜可展开主镜的动力学模型。在建模过程中采用固定界面子结构模态综合法,用主镜中各分瓣子镜的弹性正则模态和静力校正模态组成的模态集来表示结构变形,仿真分析了镜片柔性对系统动力学特性的影响。仿真结果表明,实际工程应用中镜片柔性对系统的影响不可忽略。
Dynamic modeling of deployable mirror system of the next generation space telescope is derived by the hybrid coordinate method. The fixed-boundary mode synthesis method is used during modeling. Structure deformation of the main mirror is represented with elastic normal modes and static revised modes,and the effects of mirror flexibility on the system is simulated,Actually,the mirror flexibility can not be neglected in engineering.
出处
《电子机械工程》
2006年第2期1-4,11,共5页
Electro-Mechanical Engineering
基金
国防973预研项目
关键词
空间望远镜
混合坐标法
模态综合法
动力学建模
space telescope
hybrid coordinate method
mode synthesis method
dynamic modeling
