摘要
为进一步提高航天运载器故障下飞行的可靠性,提出了适用于多级入轨运载器故障的自主任务规划策略。基于混合最优控制进行飞行任务规划建模,以此为基础进行中止逻辑系统和快速轨道重构/生成框架设计,在统一的框架下综合分析评估助推级及上面级的任务中止能力并进行最优轨道重构。通过发动机节流阀故障下飞行仿真表明,该方法可以在中止能力评估的基础上进行最优轨道重构,最大限度保障飞行器的任务完成能力。所提出的方法可以拓展应用于多级运载器的总体方案设计阶段,分析不同总体设计参数对运载器中止能力的影响,从而选择确定最优参数。
In order to improve the flight reliability under failures of the launch vehicle, an autonomous mission planning strategy for multi-stage-to-orbit launch vehicle under failures is proposed. Hybrid optimal control is used for mission planning modelling. Abort logic system and rapid trajectory reshaping method under unified framework are proposed to evaluate abort capability and to reshape optimal trajectories for the booster and the upper stage. Flight simulation under engine throttle failures shows that the proposed method can perform optimal trajectory reshaping on the basis of abort capability evaluation to maximize the mission completion capability. The proposed method can also be extended to the overall design stage of launch vehicles to analyze the influence on different parameters and determine the optimal parameters.
作者
解永锋
陈佳晔
韩冬
南京宏
郑莉莉
Xie Yongfeng;Chen Jiaye;Han Dong;Nan Jinghong;Zheng Lili(Beijing Institute of Astronautical Systems Engineering,Beijing 100076,China)
出处
《航天控制》
CSCD
北大核心
2022年第1期29-36,共8页
Aerospace Control
关键词
混合最优控制
中止能力
应急返回
任务规划
轨道重构
Hybrid optimal control
Abort capability
Emergency return
Mission planning
Trajectory reshaping
