串联战斗部中隔板顶角对后级装药影响的研究

摘要

为了研究破-破型串联战斗部中隔板顶角对后级装药的影响,采用三维数值模拟的方法,研究了不同顶角的隔板对后级爆炸成型弹丸(简称EFP)速度及成型的影响.研究发现隔板顶角对后级EFP速度及成型有较大影响:隔板顶角越小其阻挡爆轰波的效果越差,对后级EFP速度及成型影响越大；隔板顶角越大越有利阻挡爆轰波,但顶角太大时不利于翻转会与后级EFP发生碰撞,影响后级EFP速度及成型.所以隔板顶角存在一个最佳角度,在最佳角度范围内,隔板可以有效减小对后级EFP速度及成型的影响；当隔板顶角大于或者小于最佳角度时,隔板会对后级EFP的速度及成型有较大影响.该研究结果可用于串联战斗部结构设计.%In order to study the effect of separators vertex angle to the rear charge, a three dimensional numerical simulation was used to simulated the speed and shape of explosion forming projectile ( EFP) in different separator 's vertex angle. Research show that the smaller the vertex angle of separator is, the worse the effect to resist detonation wave and the more influence on the EFP speed and formation will be. The bigger vertex angle of separator was more conductive to resist detonation wave, but which may go against to the separator's turn, and even conllide with the EFP. Therefore, there is an optimal angle for the separator to reduce the effect efficiently on the speed and the formation of the rear EFP. When the separator's vertex angle exceeded or less than the optimal angle, the separator will make significant influence on the speed and formation of the rear EFP.