摘要
针对聚能侵彻体后效毁伤乏力的问题,设计复合装药双层药型罩结构,通过爆轰驱动得到横向效应增强侵彻体,穿透目标后破裂形成破片,有效杀伤靶后目标。采用正交设计方法,对双层药型罩结构进行优化,利用Autodyn软件的映射和算法转化功能,采用拉格朗日-SPH粒子耦合算法,对侵彻体靶后破片飞散过程进行模拟,结果表明:双层药型罩外罩为铜,内罩为铝,当装药直径为D,装药高度为0.55D,药型罩总厚度为0.07D、曲率半径为0.8D、内外罩厚度比值为0.75,变壁厚边顶比为0.25时,成型较优;侵彻厚度为20 mm的钢靶,可在靶后0.5 m处形成散布直径为0.87 m的破片杀伤带,仿真结果与试验误差为3.9%。
In order to solve the problem of the shaped charge damage weak aftereffect,a composite charge with the double-layer liner structure is designed.The explosively formed penetrator with enhanced lateral efficiency,which can form a large number of killing fragments after penetrating the target.The orthogonal design method is used to optimize the structure of the double-layer liner.Using the mapping and algorithm transformation functions of Autodyn software and the Lagrangian-SPH particle coupling algorithm is used to simulate the process of fragment scattering after the penetrating.The results show that the outer liner is copper and the inner liner is aluminum.When the charge diameter is D,the charge height is 0.55 D,the total thickness of the liner is 0.07 D,the radius of curvature is 0.8 D,the thickness ratio of the inner to outer liner is 0.75,and the ratio of the side to the top of the variable wall thickness is 0.25,the forming is better.When penetrating a steel target with a thickness of 20 mm,a fragment killing zone with a diameter of 0.87 m can be formed at 0.5 m behind the target.The error between the simulation results and the experimental is 3.9%.
作者
刘亚昆
尹建平
张洪成
代廷静
张学伦
魏许昌
曾令清
LIU Yakun;YIN Jianping;ZHANG Hongcheng;DAI Tingjing;ZHANG Xuelun;WEI Xuchang;ZENG Lingqing(Chongqing Hongyu Precision Industry Group Co.,Ltd.,Chongqing 402760,China;North University of China,Taiyuan 030051,China)
出处
《兵器装备工程学报》
北大核心
2025年第8期110-117,共8页
Journal of Ordnance Equipment Engineering
关键词
聚能
双层药型罩
横向效应增强侵彻体
破片
数值模拟
shaped charge
double-layer liner
penetrator with enhanced lateral efficiency
fragments
numerical simulation
