基于Isight的星载天线支撑桁架结构热变形优化设计  

Thermal Deformation Optimization Design of Support Truss for Space-borne Antenna Based on Isight Platform

作　　者：李奇[1] 周徐斌[1] 杜三虎[1] 王萌[1] LI Qi ZHOU Xu-bin DU San-hu WANG Meng(Shanghai Institute of Satellite Engineering, Shanghai 201109, China)

机构地区：[1]上海卫星工程研究所,上海201109

出　　处：《制导与引信》2016年第3期33-38,共6页Guidance & Fuze

摘　　要：复合材料及其结构以其优异的性能在各种航天器上广泛使用,如卫星天线支撑桁架。文章研究了以Isight为集成平台对天线支撑桁架结构进行多参数多目标优化设计,获得满足结构刚度和热变形性能要求的复合材料杆件铺层,并分析了最优铺层杆件下天线热变形。该种优化方法可以快速地找到最优方案,对于型面精度要求较高的星载天线,可以大大提高优化效率及产品性能,可应用到整个星载天线的设计中。Composites and its structures have been widely used in various kinds of spacecraft because of their excellent mechanical properties, for instance support truss for space-borne antenna. On the Isight platform, a multi-parameter and multi-objective optimization method was conducted to obtain the optimal layup for composite beam, which met the demands of structural stiffness and thermal deformation. Thermal deformation of support truss with the optimal layup was obtained. This optimization method can efficiently find optimal project, improve the optimizing efficiency and performance of products for space-borne antenna With high requirements in surface perusal. It is useful to use this method in the design period of antenna structure.

关 键 词：星载天线 热变形 有限元法 多目标优化 

分 类 号：V443.4[航空宇航科学与技术—飞行器设计]