Research on the Influence of Connecting Component on Dynamic Performance of Space Focusing Platform

Dynamic characteristics of focusing mechanism affects greatly the reliability and accuracy of the space camera. It ensures the image quality of the camera and compensates for the defocus caused by complicated space environments. The goal of the research is to achieve dynamic simulation analysis of the focusing platform from a model space camera study the effect of connection component on the dynamics performance of the focusing platform. In this research, the modeling of the guide joint and the focusing platform is completed by finite element method. The dynamic parameters are obtained by the analytical formula based on elasticity theory. The accuracy of dynamic model is verified by simulation and sinusoidal vibration test. Finally, this research accomplished the dynamic analysis of space focusing platform with different coupling, researched the basis influence regular pattern of connection component on the dynamic characteristics of the focusing platform.