中国空间科学技术

中国空间科学技术 ›› 2020, Vol. 40 ›› Issue (1): 1-.doi: 10.16708/j.cnki.1000-758X.2020.0001

• 研究探讨 •    下一篇

载人地月混合轨道一次脉冲应急返回轨道分析

吕鹏伟，尚志，王平   

  1. 1中国空间技术研究院载人航天总体部，北京100094
    2中国航天科技集团有限公司，北京100048
  • 出版日期:2020-02-25 发布日期:2020-02-11

Emergency return analysis of hybrid trajectory based on one impulse for human lunar mission

LYU Pengwei, SHANG Zhi, WANG Ping   

  1. 1.Institute of Manned Space System Engineering，China Academy of Space Technology，Beijing 100094，China
    2.China Aerospace Science and Technology Corporation，Beijing 100048，China
  • Published:2020-02-25 Online:2020-02-11

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摘要： 对于载人地月转移任务，应急返回轨道是航天员安全返回地球的保障。针对载人混合轨道地月转移对安全性要求高的特点，基于载人地月混合轨道，提出了3种一次脉冲的应急返回轨道，即直接返回、即刻机动绕月返回及绕月后机动返回等模式。研究了不同时刻发生故障后，利用3种应急模式返回地球的转移时间和速度增量等特性，研究了载人地月转移全过程出现故障后的应急方式，总结了3种应急模式的应用特点及优劣，可为载人月球探测任务顶层任务分析与设计提供参考。

关键词: 载人月球探测, 混合轨道, 三体模型, 应急返回, 特性分析

Abstract: For human earthmoon transfer mission, emergency return trajectories are key to astronauts′ safe return to earth. Emergency return trajectories based on human translunar hybrid trajectory were proposed, considering safety the most important requirement in human earthmoon transfer mission. There are three emergent return methods,which are direct return, immediate transfer and steer by the moon, and steer by the moon and return. The characteristics of transfer time and velocity increment of the three emergent return methods were studied. The advantages and disadvantages of the three emergency return methods were analyzed, providing reference for translunar trajectory selection in subsequent human lunar exploration missions.

Key words: human earthmoon transfer mission, hybrid trajectory, threebody model, emergent return, characteristic analysis