破片战斗部有效破片数影响规律研究

Research on the influence law of the effective fragment number of fragment warhead

运用AUTODYN软件数值模拟预制破片战斗部侵彻地面后起爆的破片飞散过程,分析了不同侵彻深度、起爆方式及落角对破片飞散规律及有效破片数的影响,获得了侵彻深度与有效破片数占比的关系式。研究结果表明:战斗部侵彻深度与有效破片数呈线性反比关系;采用底部端面中心点起爆更有利于向空中飞散形成有效破片;当落角在一定范围时,落角较小的战斗部产生的有效破片数较多。

This paper numerically simulates the fragmentation flying process of the prefabricated fragment warhead based on AUTODYN software after it penetrates into the ground at a certain depth.The effects of different penetration depths,initiation modes and falling angles on the dispersion law of fragments and the effective fragment number are analyzed,and the relationship between penetration depth and the proportion of the effective fragment number is obtained.The results show that the penetration depth of warhead is inversely linear proportional to the number of effective fragments.The detonation of the center point of the bottom end surface is more conducive to the formation of effective fragments flying into the air.When the falling angle is within a certain range,the warhead with a smaller falling angle produces more effective fragments.