高低初速炮弹通用自动机发射技术研究

General Automata Launch Technology of High-slow Muzzle Velocity Projectiles

为了用1套自动机通用发射高压高初速穿甲弹和低压低初速杀伤榴弹,该文进行了通用自动机发射技术研究。运用牛顿第二定律建立了动力学方程组,并编程进行求解。方程首先满足发射低压低初速榴弹时自动动作的完成,再分析并调整参数以优化发射穿甲弹时的自动动作。对主要因素进行了灵敏度分析,并对机框与身管碰撞和追击问题进行了探讨。结果表明:高低初速通用发射技术是可行的,射速为210发/m in左右;对枪机位移影响最大的因素是加速比;加速位置宜选用簧力冲量和火药燃气冲量的平衡位置;较小的机框复进到位速度、碰撞恢复系数、机框身管质量比对追击问题有利。

To use a set of automatic mechanism to launch high pressure high muzzle velocity armor-piercing bullets and low pressure low muzzle velocity shrapnels generally,the general automata launch technology is researched here.By building dynamic equations with the method of Newton＇s second law,the program is developed and solved.The equations first satisfy the launch automatic action of the low pressure low muzzle velocity shrapnels,and analyze and adjust the parameters to optimize the automatic launch action of armor-piercing bullets.The sensitivity of main factors is analyzed,and the collision and chasing issues of bolt and barrel are investigated.The results indicate that the general automata launch technology is feasible and the fire rate is about 210 rounds per minute.The maximum factor influencing the bolt＇s displacement is the acceleration ratio,and the better acceleration position is the one where the powder gas impulse is equal to the spring impulse.With the lower counter-recoil velocity of bolt carriers,the smaller collision recovery coefficient and the smaller mass ratio of bolt carrier to barrel,the chasing issue can be easily solved.