基于低体分SiC/Al主镜框的空间相机主支撑结构热特性分析与验证  

Thermal Characteristics Analysis and Verification of Primary Supporting Structure for Spaceborne Camera Based on Low Volume SiC/Al Primary Mirror Frame

作　　者：李伟艳 吕群波 刘扬阳[1,2,3] 谭政 王建威[1,2] 赵娜 裴琳琳[1,2] 孙建颖 陈鑫雯[1,2] LI Weiyan;LÜQunbo;LIU Yangyang;TAN Zheng;WANG Jianwei;ZHAO Na;PEI Linlin;SUN Jianying;CHEN Xinwen(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;Key Laboratory of Computational Optical Imagine Technology,CAS,Beijing 100094,China;University of the Chinese of Academy of Science,Beijing 100094,China)

机构地区：[1]中国科学院空天信息创新研究院,北京100094 [2]中国科学院计算光学成像技术重点试验室,北京100094 [3]中国科学院大学,北京100094

出　　处：《光子学报》2021年第4期207-217,共11页Acta Photonica Sinica

基　　金：国家自然科学基金(No.61635002)。

摘　　要：基于微小卫星平台对高分辨相机的重量约束,以高分微纳卫星CX6-02数字超分辨相机研制为例,提出一种基于低体分SiC/Al主镜框的空间相机主支撑的结构形式,并开展主镜框一体拓扑优化设计分析和试验验证。Zernike多项式计算及光机热集成仿真结果验证了低体分SiC/Al主镜框作为空间相机主支撑结构的有效性。热光试验数据及在轨成像结果表明,兼具主支撑功能的低体分SiC/Al主镜框的空间相机试验数据与仿真数据基本吻合,且性能稳定,可为未来采用低体分SiC/Al主镜框作为主支撑的航天相机轻量化设计和研制提供理论与技术参考。Based on the weight constraint of micro-satellite platform on high resolution camera,taking the digital super-resolution camera of high-resolution micro-nano satellite(CX6-02)as an example,the integrated camera topology optimization design and experimental verification are carried out with primary mirror frame is taken as the primary supporting structure.The Zernike polynomial calculation and optomechanical thermal integration simulation are carried out,the results show that the low-volume SiC/Al primary mirror frame is effective as the supporting structure of the spaceborne camera.The thermo-optic data and on-orbit imaging results show that the experimental data of the spaceborne camera with the main supporting function of the low-volume SiC/Al primary mirror frame is consistent with the simulation data,and the performance is stable.It can provide a reference for the lightweight design and development of spaceborne cameras based on low-volume SiC/Al in the future.

关 键 词：微纳卫星 空间相机 低体分SiC/Al 主镜框 主支撑 拓扑优化 光机热集成仿真 

分 类 号：O439[机械工程—光学工程]