预控破片战斗部成型及速度衰减的影响研究

Study on Molding and Velocity Attenuation of Prefabricated Fragment Warhead Based on Dimensional Analysis

基于LS-DYNA有限元软件对V型刻槽预控破片战斗部成型过程进行仿真模拟,利用量纲分析的方法,得到了V形槽的预控破片战斗部有效破片数量、平均速度和速度衰减计算方程。结果表明:V型槽预控破片战斗部可以形成大量的有效破片,初始速度大于1700m/s,具有良好的毁伤特性。该模型计算结果对比爆坑试验与测速试验结果,吻合度较好。所得结果为预控破片战斗部进一步的研究提供可靠的参考依据。

Based on the LS-DYNA finite element software,the simulation of V-shaped groove pre-controlled broken warhead forming process was carried out. The number of effective fragments and the average speed were obtained by dimension analysis method. The results showthat the V-shaped groove pre-controlled warheads can form a large number of effective fragments with high-flying speed. The results of the model matched those of the experiment better. The results provide a reliable basis for the further study of prefabricated warheads.