两种弹筒适配方式对导弹出筒姿态的影响

Effect of Two Adaptation Methods of Missile and Tube on Outlet Attitude of Missile

潜射导弹在水下垂直发射出筒过程中,弹体受到发射筒与适配器的共同约束,使得出筒阶段弹体载荷水平较高.为研究横向支撑对弹体出筒姿态的影响,依据动量和动量矩定理建立了导弹水下垂直发射出筒过程动力学模型,对艇速为1m/s、2m/s工况下的适配器和气密环-减震垫2种弹筒适配方式对导弹出筒时刻姿态的影响进行了仿真计算.结果表明,2种横向支撑方式下,出筒俯仰角、攻角量值差别不大,但角速度、质心横向偏移量差别较大,尤其是在气密环-减震垫横向支撑方式下,弹体出筒伴随较大的震荡过程.

While launched out of the launch tube vertically, the underwater missile is restricted by launch tube and adapter, which makes the missile load-level higher. To study the effect of transverse support on the outlet attitude of missile, the vertical-launching dynamic model was created in body coordinate system by momentum and moment of momentum theorem. The simulation for outlet attitude of missile affected by two adaptation methods which were adaptation and seal-pad between missile and tube, was carried out under the conditions of the sub- marine velocity of 1 m/s and 2 m/s. The results show that under two transverse support methods,the pitch angle and attack angle have little difference, but the angular velocity and the lateral displacement of centroid have great difference. Especially for the seal-pad transverse support method,the missile is launched out of the tube with a large shock process.