薄壁圆筒对药型罩切割及径向扩张的数值仿真  

Numerical Simulation on Process of Liner Cutting and Radial Expanding by Thin Cylinder

作　　者：龚柏林[1] 初哲[1] 王可慧[1] 李明[1] GONG Bai-lin;CHU Zhe;WANG Ke-hui;LI Ming(Northwest Institute of Nuclear Technology,Xi'an 710024,China)

机构地区：[1]西北核技术研究所,西安710024

出　　处：《现代应用物理》2019年第1期69-76,共8页Modern Applied Physics

基　　金：国家自然科学基金资助项目(11202169)

摘　　要：为了分析薄壁圆筒与药型罩的相互作用过程特性,对药型罩初期压垮、薄壁圆筒切割药型罩和径向扩张驱动药型罩3个过程进行了数值仿真。结果表明:采用薄壁圆筒内部化爆加载方式,可以增强药型罩破片群的径向驱动能量,提高药型罩的径向散布速度。该数值仿真结果可为药型罩破片群成型的相关结构设计提供参考。To analyze the characteristics of interaction process between thin cylinder and liner,three processes which include liner initial collapsing,thin cylinder cutting liner,and liner radial expansion driven by thin cylinder liner were simulated.The numerical simulation results show that the radial driving energy of the liner fragment can be enhanced and the radial dispersion velocity of the liner can be increased by using the internal explosive-loading mode of the thin cylinder.It provides a reference of the structure design of liner fragments forming of shaped charge liner.

关 键 词：聚能战斗部 多模战斗部 药型罩破片群 径向发散 

分 类 号：TJ410.333[兵器科学与技术—火炮、自动武器与弹药工程]