迫击炮发射条件对炮口扰动的影响分析

Analysis of influence of firing conditions of mortar on muzzle disturbance

为探究迫击炮发射条件中射角和弹丸装药号对炮口扰动的影响,建立了某型迫击炮、弹丸及土壤的非线性有限元模型,考虑弹丸与身管耦合、座钣与土壤耦合、脚架与土壤耦合和缓冲机特性,使用显式求解器,仿真分析了不同射角和装药号条件下迫击炮单发射击时炮口扰动的变化规律。研究发现弹丸装药号和射角与炮口扰动均是正相关,对于某一距离的目标,使用较小号装药配合较小的射角,可以有效降低一发射击时产生的炮口扰动,提高射击精度。该结论对迫击炮的可靠使用和提高射击精度具有重要指导意义。

In order to explore the influence of firing angle and projectile charge number on the muzzle disturbance of mortar,a nonlinear finite element model of mortar,projectile and soil is established,considering the coupling of projectile and barrel,plate and soil coupling,tripod and soil coupling,and the characteristics of buffer machine.Using explicit solver for mortar same firing angle of the projectile charge number,different projectile charge,different shooting angle and projectile charge,different shooting angle regularity of the muzzle disturbance for the sniper firing are analyzed,and the projectile charge number and the shooting angle and the muzzle disturbance are positive correlation.Aiming for a certain distance,using a small charge with smaller shot angle,it can effectively reduce the muzzle disturbance and improve the shooting accuracy.The conclusion has important guiding significance for the reliable use of mortars and the improvement of shooting accuracy.