空天旅行舱着陆系统刚柔耦合动力学仿真

摘要

研究了空天旅行舱的着陆性能,针对其着陆系统的着陆过程进行了动力学仿真并分析其着陆时的动力学响应.以刚柔耦合动力学理论为基础,采用多体动力学软件和有限元分析软件建立了空天旅行舱着陆系统的刚柔耦合动力学模型,重点研究了着陆地面土壤摩擦系数、着陆水平姿态角以及水平着陆速度等参数对空天旅行舱着陆系统着陆性能的影响,结果表明这些参数对空天旅行舱的过载、行程以及着陆稳定性都有不同程度的影响,从而为空天旅行舱的着陆系统设计提供了有价值的参考.%Landing performance of near space travel vehicle is studied.Its landing process is simulated and the dynamic landing response is analyzed.Based on rigid-flexible coupled dynamic theory,the rigid-flexible coupled dynamic model is established through the use of multi-body dynamic software and finite element analysis software.Effects of parameters such as soil friction coefficient,horizontal attitude angle of landing and horizontal landing speed are considered.Conclusions show that these parameters have different effects on the overload,stroke and landing stability of near space travel vehicle.This paper provides a valuable reference for the landing system design of near space travel vehicle.