摘要
在提高战斗破片毁伤目标效能的研究中,轴向前置破片战斗部是一种新型高效毁伤多用途战斗部,能够在轴向形成能量相对集中的集束预制破片群和径向均强分布的自然破片群。传统自然破片战斗部命中精度不高,毁伤概率低。为解决上述问题,提出利用大质量定向破片群提高毁伤目标的效能,并采用炸药直接驱动前置预置破片的方式极大的提高了轴向速度并通过轴向前抛形成的高密度破片场对来袭目标进行包裹打击。利用LS-DYNA软件建立轴向前置破片战斗部仿真模型,仿真起爆后的壳体膨胀变形、破裂和预置破片抛出、破片场形成的过程,获得了破片速度、密度、飞散角等参数,并进行了仿真。仿真结果表明轴向前置破片战斗部对来袭目标的毁伤概率为89.6%(自然破片战斗部的毁伤概率仅为32.5%),证明轴向前置预置破片战斗部毁伤效率明显提高。
The Axial Forward Projection Fragment Warhead is an efficient multi-purpose warhead,which can form a relatively energy concentrated group of cluster fragment in the axial direction and uniform distributed natural fragments in the radial.Thus,the comprehensive damage field can not only effectively compensate for the lack of precision,but also use the large fragment group to improve the quality of directional damage target.The axial velocity of fragments driven by explosives was greatly improved,and the warhead can full fight against incoming targets by high-density fragments in the axial direction.Shell expanding,rupture,pre-fragments throwing and fragments formation were simulated by application of LS-DYNA software.The fragment velocity,scattering angle parameters and distribution field were acquired,as well as the damage efficiency to the American-made anti-radiation missile was analyzed in coordinate.The results of numerical simulation verify that the Axial Forward Projection Fragment Warhead to incoming target＇s damage probability is 89.6%,while the Natural Fragment Warhead to the incoming target＇s damage probability is only 32.5%.Above all,the Axial Forward Projection Fragment Warhead is better than the Natural Fragment Warhead.
出处
《计算机仿真》
CSCD
北大核心
2011年第10期13-17,共5页
Computer Simulation
关键词
有限元法
预置破片
飞散角
速度
数值模拟
Finite element method
Projection fragment
The dispersion angle
Velocity
Numerica1 simulation
