尾翼稳定弹近弹故障分析

Fault Analysis of Short Round of Tail Stabilizer Blast Projectile

以某坦克炮出现发射尾翼稳定杀伤爆破弹故障为背景,对可能引起该故障的因素进行了故障机理分析,通过计算得出了满足尾翼张开的最低膛压条件,建立了近弹故障树,并对故障树进行了定性分析,然后按照故障树对故障模式进行逐一的排查,对排查过程中尚不能确定的可能引起尾翼弹飞行故障的膛压不足的故障模式,用Matlab软件混合装药的膛压进行模拟仿真,验证了尾翼弹近弹的原因为混合装药配比不合适导致膛压不足。以初速和膛压为考察对象,用Matlab软件对混合装药条件下装药方案进行了优选设计,经试验验证,使用装药优选方案的杀伤爆破弹飞行正常。

Based on the failure of a tank gun to launch a stabilizer blast bomb with tail fin,this paper analyzes the possible causes of the failure,and obtains the minimum chamber pressure to meet the opening condition of tail fin.The fault tree of near-projectile was established and qualitatively analyzed,then the fault patterns were checked one by one according to the fault trees.The failure mode of insufficient chamber pressure which may cause flight failure of tail fin projectile was not determined in the course of the investigation,the simulation of chamber pressure of mixed charge was carried out by Matlab software.It was verified that the reason for the tail projectile near the shell was the inadequate mixing ratio of the charge.Taking muzzle velocity and chamber pressure as the object of investigation,the optimum design of charge scheme under mixed charge conditions was carried out by Matlab software.The test verifies that the kill bomb with optimum charge scheme can fly normally.