起爆方式及隔爆层对杀爆战斗部破片初速的影响

Effect of initiation mode and flameproof layer on the initial velocity of blast fragmentation warhead fragments

为了揭示起爆方式及隔爆层对杀爆战斗部破片初速的影响规律,指导威力可调杀伤战斗部设计,运用AUTODYN-3D软件,计算了不同起爆方式、隔爆层厚度及材料下复合装药预制破片战斗部破片初速。结果表明:装药条件一致时,2种起爆方式得到的破片毁伤元速度差异明显,隔爆层厚度取4、6、8、10和12 mm时,采用内外3点起爆方式破片速度比中心单点起爆分别提高16%、15%、13%、11%和8%。尼龙和聚氨酯隔爆效果较好,铝隔爆效果较差。

In order to reveal the law of the influence of initiation mode and flameproof layer on the initial velocity of blast fragmentation warhead fragments and guide the design of lethal warheads with adjustable power,this paper uses the AUTODYN-3D software to calculate the initial velocity of prefabricated fragment warheads with composite charge under different initiation modes,flameproof layer thickness and materials.The results show that when the charging conditions are the same,the fragment damage element velocities obtained in the two initiation methods are significantly different.When the thickness of the flameproof layer is 4 mm,6 mm,8 mm,10 mm and 12 mm,the fragmentation velocity obtained through the internal and external three-point initiation method increases by 16%,15%,13%,11%and 8%respectively than that through the central single-point initiation method.Nylon and polyurethane have good flameproof effect,while aluminum has poor flameproof effect.