为研究药型罩结构参数对K装药射流成型的影响,利用ANSYS/LS-DYNA软件对其成型过程进行数值模拟,得到了结构参数对射流的头部速度、长度、动能和能量利用率的影响规律,并对有无波形控制器的情况进行了分析。研究表明:药型罩高度40mm<H<60mm、曲率半径300mm<R<500mm、厚度3mm<δ<5mm、装药长径比0.7<x<0.9时,形成射流性能较好。与无波形调整器的装药结构相比,射流的能量利用率提高17.6%,速度提高42.5%,长度增加1倍,能量增加2.5倍。

In order to study the effects of liner configuration parameter on formation of K-charge, the ANSYS/LS-DYNA software was used to simulate the formation process of projectile, and the effects of the formation process and charge structure on the head velocity, velocity gradient, length and kinetic energy of the projectile were analyzed, and comparison was made to analyze the difference between the charges with detonation wave controller and non-detonation wave controller. The results shows that while length 40 mm <H < 60 mm, curvature radius 300 mm <R <500 mm, thickness 3 mm <δ <5 mm, charge slenderness rate0.7 < x <0.9, the penetration capability of projectile is better. For the small length-diameter ratio charge, appropriate detonation wave controller can be applied to the charge to enhance the speed, length-diameter ratio, energy of projectile. The energy utilization rate of the projectile with detonation wave controller is 17.6%, the speed is 42.5% advanced, the energy is 2.5 enhanced, and the length-diameter ratio is 1 time.