Support structure for high resolution space camera
                                                FENG Qiang1,2, HE Xin1, LV Qingtao3, ZHANG Kai1, ZHAO Yuchen1
（1.Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences,Changchun 130033, China; 2.Daheng Institute, University of Chinese Academy of Sciences, Beijing 100049, China;3.Shanghai Tianming Information Technology Co., Ltd., Shanghai 201499, China）

Abstract: Aiming at the problem of thermal stability and mechanical properties of high resolution space cameras, the constraint, thermal adaptability and mechanical property of the support structure were researched, and a flexible support structure based on kinematic support was proposed. The layout scheme of 4point horizontal connection between space camera and satellite was determined by the structure of the satellite, and the thermal adaptation design of the support structure was carried out. The structure with flexible link was designed which was verified by the screw theory. To achieve the lower random vibration response, the flexible link for support structure was optimized. The key size parameters of the flexible link were obtained. The finite element analysis software was used to simulate the performance of the support structure. The results indicate that the support structure satisfies the constraint requirements. It can not only protect the structure of the space camera from severe vibration damage during the launch process, but also achieve robust thermal adaptability in orbit.

Key words: high resolution space camera; support structure; environment adaptation; screw theory; optimization design