舰炮摆弹运动弹药振动的影响因素分析

Analysis of Influence Factors on the Vibration of Ship Gun Swing Motion Ammunition

通过分析弹药振动的影响因素,建立摆弹过程动力学模型和进行降阶处理,利用四阶龙格库塔法对动力学模型进行求解,得到弹药振动时摆角的角速度变化规律,并以此作为ADAMS的驱动数值,将Creo简化后模型导入ADAMS中进行运动仿真。以抱弹器托弹部分内表面直径为参数变量,通过改变参数大小得到取不同的角速度总振动曲线。结果表明,合理确定抱弹器托弹部分内表面直径大小,能够减小弹药在抱弹器中的振动幅度,提高弹药的安全性。

By analyzing the influencing factors of ammunition vibration, the dynamic model of the projectile was established by using the lower order, and using the four-step Runge-Kutta method to solve the dynamics model. Then we obtained the change law of the angular velocity of ammunition swing Angle, as the driving value of ADAMS, and the simplified model of Creo was imported into ADAMS for motion simulation. Taking the diameter of the inner surface of the elastic part of the retainer as the parameter variable, the total angular velocity vibration curve of different parameters can be obtained. The results show that proper selection of the diameter of the inner surface of the retainer can reduce the vibration amplitude of ammunition in the retainer, and improve the safety of radial direction of ammunition.