一种针对分离模块航天器系统的分层优化方法  

An Optimization Method of Separated Modular Spacecraft Systems Based on Hierarchical Structure

作　　者：唐宇[1] 陈小前[1] 姚雯 

机构地区：[1]国防科学技术大学航天科学与工程学院,长沙410073

出　　处：《宇航学报》2013年第9期1207-1214,共8页Journal of Astronautics

基　　金：国家自然科学基金(50975280;51205403)

摘　　要：针对分离模块航天器系统优化中存在计算量大、算法复杂度高的问题,提出了一种基于分层的分离模块航天器系统优化方法。该方法将系统优化问题分解为三个层次进行,顶层规划模块数和轨道高度,中间层优化组件配置,底层优化运载发射方案。其中顶层嵌套调用中间层,中间层嵌套调用底层,底层直接计算求解最优运载发射方案,避免了直接基于分离模块航天器全寿命周期仿真来优化运载发射方案。应用该方法对虚拟对地遥感分离模块航天器进行优化,结果表明,优化过程简单,计算量小,算法复杂度低,优化效果显著。Aiming at reducing the huge amount of computation in separated modular spacecraft system optimization, in this paper, a new method for the separated spacecraft system optimization based on hierarchical structure is introduced. This method decomposes the system optimization problem to three hierarchies：the exterior cycle optimizes the number of modules and the height of orbit, the middle cycle optimizes the component configuration, and the interior cycle optimizes launch vehicles and batches. Middle cycle is nested in the exterior cycle, while the interior cycle is nested in the middle cycle. By this method, the computational cost is largely reduced. The effectiveness of this optimization method is verified in the case study of a virtual earth remote sensing separated modular spacecraft.

关 键 词：分离模块航天器 分层优化 运载发射方案优化 组件配置优化 模块数与轨道高度优化 

分 类 号：V474.3[航空宇航科学与技术—飞行器设计]