摘要
为了研究某空空导弹内埋弹射发射系统结构参数对其发射分离参数的影响,针对多刚体模型不能准确仿真发射过程中发射俯仰角速度存在强烈柔性波动效应的问题,基于刚柔耦合多体动力学理论,建立了某空空导弹发射系统刚柔耦合动力学仿真模型;采用该模型对发射系统的导弹发射分离参数进行仿真,详细讨论了导弹重心、弹射发射行程、结构刚度等设计参数对导弹发射分离角速度的影响;发现导弹重心位于垂直作动筒作用点后,4根同步杆和4个转动臂需保证较好的刚度,且发射行程不超过350 mm时,导弹弹射分离角速度不会产生抬头效应,发射安全性较好。
In order to study the influence of structure design parameters of air-to-air missile buried eject launcher to launching separation parameter,multi-rigid-body system cannot simulate the problem that the pitching angular velocity has high volatility during launching.Based on the rigid-flexible coupled multibody dynamics theory,an air-air missile launcher system dynamics model was established and used to analyze the launcher system dynamics characteristic.This paper focuses on analyzing the infection of important design parameter to missile launch separate angle speed,including the center of missile mass,launch distance,and machinery rigidity.Results show that,the center of missile mass must behind vertical actuator, synchronous connecting rod and rotor arm must have enough rigidity,the launching distance must beyond 350 mm.
出处
《四川兵工学报》
CAS
2014年第7期9-12,20,共5页
Journal of Sichuan Ordnance
关键词
柔性动力学
内埋弹射
俯仰角速度
导弹发射系统
发射动力学
flexible dynamics
buried eject launcher
separate pitching angle speed
missile launch system
launch dynamics
