在传统的双层药型罩形成串联EFP的基础上,提出了一种新型双层药型罩结构。利用ANSYS/LS-DYNA软件对该结构进行了数值模拟,并对其主要影响因素进行了对比分析。研究结果表明:当内层药型罩曲率半径R从112mm等间距增大到152mm时,多破片的稳定速度变化不大,基本保持在1893m/s,飞散角α则从0.69°逐渐增大到2.27°;EFP的速度从1646m/s增大到1738m/s,长径比L/D则从3.6逐渐降低到1.9。

Based on the traditional double shaped charge liner formed series EFP, a new double shaped charge liner structure was pro-posed. ANSYS/LS-DYNA software was used to simulate the new structure, and influence factors were analyzed. The results show that when the curvature radius R of the inner liner gradually increasing from 112mm to 152mm, the stable speed of multi-fragments does not change basically, the speed is about 1893m/s, as well as the spray angle a tended to increase from 0. 69°to 2.27°, and the speed of EFP gradual-ly increases from 1646 m/s to 1738 m/s, but the aspect ratio L/D decreases from 3.6 to 1.9. The research results can provide reference for study on the double shaped charge liner structure.