载人航天器低空救生仿真

在载人航天器低空救生中,回收系统开伞点的初始状态参数如速度、离地面高度、弹道倾角对返回舱能否安全着陆有很大影响.与正常返回类似,低空救生中的回收系统同样经过多级伞的拉直、充气、全充满等运动过程.通过建立回收系统着陆过程的动力学模型,经过大量仿真对比分析,得到开伞点离地面高度为低空救生中返回舱安全着陆的首要因素,同时对低空救生中回收系统多级伞开伞减速过程有了详细的分析.

A Research on Simulation of Manned Spacecraft Rescue at Low Altitude

In the manned spacecraft rescue at low altitude,the initial conditions of recovery system at parachute-opening point affect obviously cabin safety landing,such as its velocity,altitude and trajectory angle.Similar to the normal return rescue,the process of recovery system rescue at low altitude also has the stages of deployment,inflation,and full-inflation of multilevel parachute.Through applying the recovery system landing dynamic model,and analyzing contrastively the results from simulation,it can be know...