CAJ | 학술논문

在复杂的整机力学环境下，以空间遥感相机支架最大自由模态为优化目标，将整机关键技术指标（基频、轻量化要求、自重变形要求等）作为约束条件，利用拓扑优化及尺寸优化技术，对某相机支架进行了优化设计。试验结果表明该方法能有效提高相机基频，相机支架实现了轻量化设计，质量减轻10％，验证了拓扑优化及尺寸优化技术在空间相机结构设计中的有效性。
재복잡적정궤역학배경하，이공간요감상궤지가최대자유모태위우화목표，장정궤관건기술지표（기빈、경양화요구、자중변형요구등）작위약속조건，이용탁복우화급척촌우화기술，대모상궤지가진행료우화설계。시험결과표명해방법능유효제고상궤기빈，상궤지가실현료경양화설계，질량감경10％，험증료탁복우화급척촌우화기술재공간상궤결구설계중적유효성。
Based on topology and size optimization technology, optimization design of a space camera bracket is completed in complex finite element simulation environment. During the topology optimization stage, the objective was defined as the first free eigenfrequency of the whole finite element model(FEM).The constraints were defined as the key technical parameters, such as constraint modal eigenfrequency, lightweight, static deformation of the FEM of the space camera.The results show that this method is effective. The first free eigenfrequency of the space camera is enhanced and the lightweight design of the bracket is achieved with its weight cut by 10%, both of which verified the validate topology optimization and size optimization techniques in structural design of space camera.