本文在对滑动式塑料弹带进行受力分析的基础上,建立了滑动式塑料弹带及弹丸的运动微分方程式,并且利用内弹道学理论和已经研制的塑料弹带的数据对方程进行求解与简化,得到弹丸炮口转速的计算公式。本文还首次提出用弹道试验法求滑动式塑料弹带与弹丸之间摩擦系数和炮膛对弹带反作用力的总冲量的方法。 Based on the force analysis of the sliding plastic band, this paper established the differential equation of motion for the sliding plastic band and projectile, and solved the equations by using the internal ballistics theory and the plastic band data that has been developed Simplify and get the formula of the speed of the projectile muzzle. In this paper, the method of calculating the total impulse of the friction coefficient between the sliding plastic bombs and the projectile and the reaction force between the bombs and the bombs by ballistic test is also proposed for the first time.