基于虚拟样机的自行火炮发射动态性能研究

Firing Dynamic Characteristics of a Self-Propelled Gun Based on Virtual Prototype

利用ADAMS/ATV和Pro/E建立某型自行火炮射击时的多体系统动力学模型,采用第一类拉格朗日方程建立系统的动力学方程。该模型由249个刚体组成,共有1275个运动自由度。将发射时的外载荷施加于相应位置进行仿真,计算得到火炮后座复进的运动规律,结果表明虚拟样机模型后座复进位移和速度的变化符合火炮实际后坐复进规律。

A dynamic model of a self-propelled gun is established by using PRO/E and ADAMS. Dynamic equations are established by applying the Lagrange equations of the first kind. There are 249 bodies and 1275 freedom degrees in the model. Adding the shooting load to the model, the motion conditions of recoil system are calculated. Moreover, the influence on the vibration parameter of the gun of some structural parameter is studied. The results can be used for reference in firing accuracy, stability and fault diagnosis of self-propelled gun.