EFP成型影响因素的数值模拟  

Numerical Simulation for the Parameter Study of Explosively Formed Projectile

作　　者：张志春[1] 孙新利[1] 孟会林[1] 姬国勋[1] 

机构地区：[1]第二炮兵工程学院,西安710025

出　　处：《弹箭与制导学报》2006年第S1期227-228,231,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：用LS-DYNA程序对等壁厚、球缺罩EFP的成型过程进行了三维数值模拟。根据模拟结果,得到了EFP的成型图象,绘制了装药长径比、药型罩曲率半径、药型罩厚度等物理量对EFP的速度的影响曲线,获得了上述物理量对EFP成型的影响规律,可以为EFP结构的优化设计提供参考依据。计算表明,三维数值模拟方法能够形象显示EFP成型过程的细节和各个物理量对EFP性能指标的影响情况,LS-DYNA程序是进行战斗部仿真试验的有效工具。With LS-DYNA3D,the formative process of explosively formed projectile(EFP)with hemispherical liner is simulated.According to the simulation results,the formation picture of EFP is obtained;the velocity curves affected by charge slenderness ratio,liner curvature radius and liner thickness are drawn;the influence of the above parameters on EFP s formation is studied,which can provide reference base for the optimization design of EFP.The calculation results shows that 3D stimulation method can display the mino...

关 键 词：EFP 结构参数 数值模拟 LS-DYNA 

分 类 号：TJ410.6[兵器科学与技术—火炮、自动武器与弹药工程]