摘要
以稳定下降阶段的降落伞-返回舱系统的动力学模型为基础,针对反推发动机不同的失效模式,建立了4种返回舱反推力模型,通过计算获知了4种返回舱着陆角和速度的变化情况,计算结果可为反推发动机失效情况下被动缓冲装置的设计输入提供参考,同时也可为返回舱着陆安全性评估和制定故障预案提供一定的参考。
Aimed at the different inactivation patterns of retro-rocket, the paper establishes four counter thrust models which are based on dynamics model of main parachute-return capsule system in descending- steady phase and obtains four cases about the landing angle and velocity. The calculation result can pro- vide reference for design-input of passive deceleration device, and meanwhile provide certain reference for evaluating return capsule landing safety and formulating preliminary restoration schemes.
出处
《航天器工程》
2013年第1期82-86,共5页
Spacecraft Engineering
关键词
反推发动机
失效
返回舱
着陆姿态
retro-rocket ； inactivation
return capsule
landing attitude
