大炸高下喇叭罩聚能装药静态侵彻能力

Static Penetration of Shaped Charge with Trumpet Liner for Great Gap

为了提高大炸高条件下药型罩的侵彻能力,对喇叭罩聚能装药形成的射流侵彻均质钢板进行数值模拟。运用AUTODYN-2D非线性动力学分析软件的Euler算法对其进行数值模拟和试验结果对比,在分析顶薄底厚的变壁厚喇叭罩壁厚变化规律对其所形成射流的侵彻能力的影响。验证结果表明:当药型罩壁厚范围在1.35～1.48 mm,壁厚差控制在0.03～0.05 mm内时,其侵彻能力稳定,能满足设计指标。

In order to improve the big burst height of the mask to the case conditions penetration ability, to the horn cover can charge formed together jet penetration homogeneous plates in the numerical simulation. Use AUTODYN-2D nonlinear dynamics analysis software Euler algorithm of the numerical simulation and experimental results contrast and analysis on the top of the change of the thick thin wall thickness horn wall thickness variation law to cover the formation of the penetration ability of the jet influence. The result indicates that, when medicine type cover wall thickness in range from 1.35 to 1.48 mm, wall thickness difference control in 0.03 - 0.05 mm in its penetration ability stability, can satisfy the design index.