多管火箭炮不同方向角发射动力学仿真分析

Simulation Analysis of Launch Dynamics for Multiple Rocket Launcher in Different Direction Angles

多管火箭炮在打击固定目标时,车体停放方位不同,瞄准时的方向角也不同。为提高射击密集度,研究火箭炮在不同方向角下的发射性能。在Adams中建立多管火箭炮的发射动力学模型,分别仿真方向角为0°、20°、40°、60°的发射过程,根据动力学仿真获得的数据计算火箭弹的初始扰动中间偏差。对比分析不同方向角下的仿真和计算结果可知,方向角增大时,定向器管口振动和火箭弹初始扰动中间偏差均变小,火箭炮可获得更好的射击密集度。

The direction angle of multiple rocket launcher is changed along with the direction of vehicle body at the attack on fixed target. In order to improve firing intensity, the launching performance of the rocket launcher in different direction angles is studied. The dynamics model of multiple rocket launcher is built in Adams and the launching process in direction angle 0°,20°,40°and 60°is simulated respectively. The intermediate deviation of rocket initial disturbance is calculated, using the data from dynamic simulation. Contrastive analysis of simula-tion and calculation results in different direction angles show that both the directors’ vibration and the intermediate deviation of the rocket initial disturbance are reduced with the increase of the direction angle, and the firing intensity is improved.