柔性空间结构时间-燃料多目标优化控制研究

针对柔性航天器的rest-to-rest机动问题,研究了基于最小时间-最少耗能的多目标优化开环控制问题。提出了空间柔性结构最小时间-最少耗能的多目标优化控制模型;然后采用非支配排序进化求解算法(NSGA-II),对某柔性结构进行了多目标优化控制的分析设计;通过典型算例证明了本文算法的正确性和有效性,并可应用于柔性航天器姿态机动控制器的分析设计之中。

Time-Fuel Multiobjective Optimal Control of Flexible Space Structures

A multi-objective optimization, based on the minimal maneuvering time and fuel consumption, is concerned with the computing open control inputs for rest-to-rest maneuvering problem of flexible structure. Firstly, an optimization problem of the multiobjective control design is developed; then, the NSGA-II approach is used for some typical examples of flexible spacecraft control system; Finally, the simulation results provide conclusive evidence that the approach can be efficiently realized in design and analysis of flexible spacecrafts.