中国空间科学技术2023，Vol.43Issue(6)：91-99,9.DOI:10.16708/j.cnki.1000-758X.2023.0088
绕月应急返回轨道的两参数设计
Design of circumlunar emergency return trajectory based on two parameters
董畑姗 1韩潮2
作者信息
- 1. 北京空间飞行器总体设计部,北京 100094
- 2. 北京航空航天大学宇航学院,北京 102206
- 折叠
摘要
Abstract
For crewed lunar missions,circumlunar emergency return trajectory is a vital way to ensure the crew's safety for the period near the moon of earth-moon transfer.A design method for circumlunar emergency return trajectory was proposed by introducing two parameters,the perilune altitude and the perilune time,considering the characteristics of high nonlinearity and high sensitivity of the circumlunar emergency return trajectory.Based on the pseudo-state theory and Quasi-Lambert problem,a simple and effective model was developed in this method,so that the heavy numerical iteration of the traditional trajectory design process was avoided.And a high-precision design result was realized efficiently.Further,the two parameters were applied to establish an ergodic representation of circumlunar emergency return trajectories under fixed abort point and basic reentry constraints,and the characteristics of the feasible circumlunar emergency return trajectory changing with parameters were studied.These offer a global view of all feasible circumlunar emergency return trajectories and provide a reference for translunar trajectory selection in subsequent crewed lunar missions.关键词
载人月球探测/绕月应急返回轨道/参数化设计/伪状态理论/类Lambert问题Key words
crewed lunar mission/emergency return trajectory/parametric design/pseudostate theory/Quasi-Lambert problem分类
航空航天引用本文复制引用
董畑姗,韩潮..绕月应急返回轨道的两参数设计[J].中国空间科学技术,2023,43(6):91-99,9.
