CAJ | 학술논문

空间遥感相机次镜支撑结构的稳定性对相机的成像品质具有很大的影响，对其进行分析和优化设计具有重要意义。通用的有限元分析方法无法对复杂结构自动进行多目标、多约束及多设计变量的优化设计。文章研究了以 iSIGHT 为集成平台的多目标优化设计方法及复杂结构的参数化有限元模型的建立方法，设计了次镜支撑结构的优化策略；通过分析得到了影响次镜支撑结构稳定性的各变量的灵敏度、设计空间及最优设计方案，结构性能大大提高。这种优化方法可以快速地找到最优方案，大大提高优化效率及产品的可靠性，可应用于其它次镜支撑结构设计乃至整个遥感器的设计中。
공간요감상궤차경지탱결구적은정성대상궤적성상품질구유흔대적영향，대기진행분석화우화설계구유중요의의。통용적유한원분석방법무법대복잡결구자동진행다목표、다약속급다설계변량적우화설계。문장연구료이 iSIGHT 위집성평태적다목표우화설계방법급복잡결구적삼수화유한원모형적건립방법，설계료차경지탱결구적우화책략；통과분석득도료영향차경지탱결구은정성적각변량적령민도、설계공간급최우설계방안，결구성능대대제고。저충우화방법가이쾌속지조도최우방안，대대제고우화효솔급산품적가고성，가응용우기타차경지탱결구설계내지정개요감기적설계중。
The imaging quality of space remote sensing camera is influenced by the stability of the sec-ondary mirror supporting structure, so it is significant to optimize the secondary mirror supporting structure. Optimization of multi-objectives, multi-constraints and multi-design variables of complex structure can’t be automatically realized by general finite element analysis method. An analysis method with iSIGHT integrated platform, foundation method of Parameterization FEM model of complex structure and optimization strategy are studied in this paper. The sensitivity of each variable which affects the comprehensive performance of the structure, the design space and the optimal solution are obtained through the analysis, and the performance of the structure is improved greatly. The optimal solution can be found quickly by using this optimization methods, the optimization efficiency and the reliability of products are improved greatly, this optimization method can be applied in other secondary mirror supporting structure even an entire space remote sensor.