中国空间科学技术

中国空间科学技术

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载人航天器低空应急救生分离时刻计算

曾国强,任萱,贾沛然   

  1. 国防科技大学航天与材料工程学院!长沙410073,国防科技大学航天与材料工程学院!长沙410073,国防科技大学航天与材料工程学院!长沙410073
  • 发布日期:2000-06-25

An Algorithm for Separation Time of Manned Spacecraft Emergency Rescue at Low Altitude

Zeng Guoqiang Ren Xuan Jia Peiran (College of Astronautic and Material Engineering,National University of Defense Technology,Changsha 410073)   

  • Online:2000-06-25

被引次数

2

摘要： 讨论了载人航天器低空应急救生时返回舱与逃逸飞行器分离时刻 Ta的计算方法。首先推导了逃逸弹道的近似解 ;然后提出了基于近似解的返回舱与逃逸飞行器分离时刻 Ta的实时确定方法 ;最后 ,仿真分析了该方法对提高载人航天器低空逃逸救生概率的作用 ,证明利用近似解实时求解分离时间 Ta是一种简单实用、效果明显的方法

关键词: 载人飞船, 应急回收, 舱段分离, 时间, 计算方法

Abstract: An algorithm for separation time T a of manned spacecraft reentry capsule from escape system is discussed.At first,an approximate solution of escape trajectory is deduced.Then,a real-time algorithm for separation time T a is presented,which is based on the approximate solution.Finally this simple algorithm is proved to be useful for increasing the probability of success of emergency rescue by numerical simulation.