摘要
研究了月面软着陆过程发生故障后的应急上升轨道,建立了整个应急上升过程的优化设计模型,并针对构建的强约束轨道优化问题,设计了将Gauss伪谱法和直接打靶法结合的混合优化策略,求解得到了满足应急条件的上升轨道参数。仿真分析表明该方法可以有效解决月面应急上升轨道优化问题,且求解收敛性和鲁棒性较好,可为同类问题的求解提供参考。
Lunar emergency ascent trajectory during soft landing was studied and a lunar emergency ascent trajectory optimization design model was established. A hybrid optimization strategy combining GPM and shooting method was designed to obtain the optimal solution of the ascent trajectory parameters satisfying the emergency constraints. The simulation results showed that the proposed method could solve the complex optimization problem effectively,and the methodology and strategy for the optimal trajectory design have good robustness and strong convergence.
出处
《载人航天》
CSCD
2015年第2期187-192,共6页
Manned Spaceflight
关键词
月面着陆
应急上升
轨道设计
高斯伪谱法
直接打靶法
lunar landing
emergency ascent
trajectory design
Gauss Pseudospectral Method(GPM)
direct shooting method
