高速飞行目标打击中的炮口牵连初速修正方法研究

Research on Adherent Initial Velocity Modification from Gun Muzzle in High Speed Aircraft Target Striking

针对在打击空中高速飞行目标中,所面临的高导引角速率而带来的弹丸脱膛时牵连初速,导致武器系统射击精度下降问题展开研究。分析了牵连速度的解析表达式,根据命中点解算方程,研究了在未考虑牵连初速时所引起的武器系统性能下降特性。将弹丸牵连速度引入射击诸元求解方程,修正射击诸元的解算,利用牛顿迭代算法给出了经过修正后的火炮精确射击诸元。通过数值仿真测试,对比了初速修正前后命中概率的改进和火炮导引角的差异,说明了初速修正算法的可行性和有效性。

A study was made of the problem of a decline in the firing accuracy of the weapon system caused by projectile adherent initial velocity induced by gun barrel guided with rapid guiding angular rate from fire control system in striking high speed aircraft target.Firstly,with the analytical expression of adherent initial velocity proposed,an analysis was carried out of the degradation performance of the weapon system based on solving equation of hit point and neglecting the adherent initial velocity.Secondly,with firing data solution equation modified by projectile adherent initial velocity,the accurate firing data was obtained by using newton iteration algorithm.Finally,a comparison was made of the hit probability and the difference of gun barrel guiding angle of the weapon system before and after projectile adherent initial velocity modification,which illustrates the feasibility and availability of the proposed modification algorithm.