| 引用本文: | 郭叔伟,董杨彪,丁娣,等.载人航天器低空救生仿真.[J].国防科技大学学报,2008,30(4):22-27.[点击复制] |
| GUO Shuwei,DONG Yangbiao,Ding Di,et al.A Research on Simulation of Manned Spacecraft Rescue at Low Altitude[J].Journal of National University of Defense Technology,2008,30(4):22-27[点击复制] |
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| 载人航天器低空救生仿真 |
| 郭叔伟, 董杨彪, 丁娣, 秦子增 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 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。 |
| 关键词: 载人航天器 低空救生 降落伞 返回舱 |
| DOI： |
| 投稿日期：2008-03-05 |
| 基金项目:国家部委资助项目 |
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| A Research on Simulation of Manned Spacecraft Rescue at Low Altitude |
| GUO Shuwei, DONG Yangbiao, Ding Di, QIN Zizeng |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073，China)
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| Abstract: |
| 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 known that the initial altitude from ground of recovery system at parachute-opening point is the first effect factor on the cabin safety landing in rescue at low altitude. In the end, the deceleration process of parachute-opening of multilevel parachute in recovery system is analyzed in detail. |
| Keywords: manned spacecraft rescue at low altitude parachute cabin |
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