| 过载约束下的探月飞船再入轨迹的在线设计 |
| |
| 引用本文： | 李贵明,刘良栋.过载约束下的探月飞船再入轨迹的在线设计[J].空间控制技术与应用,2011,37(1):6-10,27. |
| |
| 作者姓名： | 李贵明 刘良栋 |
| |
| 作者单位： | 1. 北京控制工程研究所,北京,100190;空间智能控制技术重点实验室,北京,100190
2. 北京控制工程研究所,北京,100190 |
| |
| 摘 要： | 研究了以第二宇宙速度返回地球的载人探月飞船的再入制导律设计问题.针对基于落点分析的数值预测-校正算法不能有效满足再入过程的气动过载约束条件的问题,提出一种基于解析计算的常值气动过载算法与基于数值积分的预测-校正技术相结合的融合再入制导方案,在线生成了同时满足过载约束和落点精度要求的再入轨迹.数值仿真表明提出的制导算法不仅能满足达到高精度着陆的要求,还能满足气动过载约束要求.在一定的再入初始条件下,探月返回飞船可以不必采用逻辑复杂的阿波罗式跳跃再入方案.这一方案可为即将展开的载人探月活动制定月-地返回轨道和再入策略提供参考.
|
| 关 键 词： | 探月返回飞船 气动过载 预测-校正制导 常值过载制导 综合制导策略 |
On Line Design of Reentry Trajectory under Aerodynamic Acceleration Load Constraint of a Lunar Vehicle |
| |
| LI Guiming,LIU Liangdong.On Line Design of Reentry Trajectory under Aerodynamic Acceleration Load Constraint of a Lunar Vehicle[J].Aerospace Contrd and Application,2011,37(1):6-10,27. |
| |
| Authors: | LI Guiming LIU Liangdong |
| |
| Institution: | LI Guiming1,2,LIU Liangdong1(1.Beijing Institute of Control Engineering,Beijing 100190,China,2.Science and Technology on Space Intelligent Control Laboratory,China) |
| |
| Abstract: | In this paper a guidance algorithm is presented to address the reentry problem of a lunar returning vehicle at the second cosmic velocity.The predictor-corrector method based on the accurate landing target location cannot meet the aerodynamic acceleration load constraint in general.For this technical problem,we combine the predictor-corrector method and a constant acceleration load method,and propose an integrated reentry guidance strategy.The improved scheme is based on real-time trajectory planning and ge... |
| |
| Keywords: | lunar returning vehicle aerodynamic acceleration load predictor-corrector guidance constant acceleration load guidance integrated guidance strategy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
