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利用LS-DYNA仿真软件对切割式多爆炸成形弹丸成形过程进行了数值模拟,模拟结果与网靶试验结果吻合较好。在此基础上进一步研究了起爆方式对弹丸速度和质量的影响。研究表明:该战斗部经网栅切割后能形成5枚具有一定质量和方向性的弹丸,有效提高了毁伤元的数量和毁伤面积;采用平面起爆方式时,中心与周边弹丸速度比点起爆分别提高了46%和28%,有效地增加了弹丸速度;随着弹丸速度的增加其质量降低,采用点起爆时弹丸质量最大,而平面起爆时最小,因此可根据具体目标选择合适的起爆方式,以提高对目标的打击毁伤概率。
The LS-DYNA simulation software was used to simulate the forming process of the cutting multi-explosion projectile. The simulation results are in good agreement with those of the mesh target test. Based on this, the influence of initiation mode on projectile velocity and mass is further studied. The results show that the warhead can form five projectiles with certain quality and direction after being cut by the grid, which effectively increases the number and damage area of the damaged elements. When using the planar detonation method, the projectile velocity ratio between the center and the periphery is detonated respectively Increased by 46% and 28%, effectively increased the projectile speed; as the projectile speed increases the quality of its decline, the use of point projectile projectile quality is the largest, while the plane detonation minimum, so you can choose the appropriate target detonation mode, In order to improve the probability of combating damage to the target.