某轻型牵引炮方向机刚度特性对弹丸起始扰动的影响

Impact of Traversing Mechanism Stiffness of Light Towed Howitzer on Initial Projectile Disturbance

为研究方向机刚度特性对弹丸起始扰动的影响,以某轻型牵引炮为例,建立了弹炮耦合全炮发射动力学有限元模型,分析了不同刚度下的弹丸起始扰动,在建立的弹丸起始扰动目标函数的基础上,研究了方向机刚度对弹丸起始扰动的影响规律。结果表明:随着方向机刚度的增大,弹丸起始扰动逐渐减小;该炮弹丸起始扰动随方向机刚度的变化呈现有利的变化趋势。

To study the impact of traversing mechanism stiffness on the initial disturbance of projectile, a light towed howitzer was taken for example, and the finite element （FE） model of projectile-barrel coupling dynamics was established to analyze the initial projectile disturbance under different stiffnesses. Based on the established objective-function of initial disturbance of projectile, the rule of the traversing mechanism stiffness affecting the initial projectile disturbance was studied. The result shows that the initial projectile disturbance gradually decreases with the increase of the traversing mechanism stiffness. The change trend of the initial disturbance of the artillery projectile is beneficial with the change of the traversing mechanism stiffness.