基于预紧力偶的步枪后坐作用仿真

Simulation of Rifle Recoil Based on Pre-Tightening Force Couple

关于步枪射击时的预紧和步枪后坐作用的影响关系问题,以立姿射击为例,根据预紧力偶结合步枪自动方式,建立了步枪后坐作用力动力学方程,对射手俯仰预紧力偶对步枪后坐作用力、步枪后坐位移、射手肩部后坐位移以及后坐速度的影响进行了数值仿真,结果表明:步枪后坐作用力随着预紧力偶的增加而增大,但两次峰值的变化规律不同;步枪后坐位移、射手肩部后坐位移以及后坐速度随着预紧力偶的增加而减小。

Aimed at the problem of relationship between the pre-tightening and rifle recoil effect, the paper used the standing shooting as an example, considered the preload couple and the automatic mode of rifle, established the rifle recoil force dynamics equation, and the results was similar with experimental. The influences of striker pitch pre- load couple on the rifle recoil force, rifle recoil displacement, Archer shoulder recoil displacement and recoil velocity were simulated. The results show that： the rifle recoil force increases with the pretension force, but the change rules of two peaks were different ; the rifle recoil displacement, shoulder recoil displacement and recoil velocity decreases with increasing preload couples.