偏心起爆方式对棱柱形定向战斗部破片飞散规律的影响

摘要

为了研究起爆方式对棱柱形定向战斗部破片飞散规律的影响,采用LS-DYNA软件模拟研究了六棱柱定向战斗部分别用面偏心一线、面偏心两线、面偏心三线、棱偏心一线及棱偏心两线起爆时的破片飞散速度、破片方向角,结果表明,偏心起爆可以明显提高定向区域内的破片飞散速度,且破片束基本分布在25.左右的径向范围内,棱偏心两线同步起爆时,对目标方位破片最大飞散速度增益可达29.73％,采用棱偏心两线序贯延时起爆可使轴向方向角改变量达6.77°.%To study the effect of eccentric initiation ways on the fragment dispersion rule of prismatic aimable warhead,the fragment dispersion velocity and fragment direction angle of prismatic aimable warhead in eccentric one line initiation on face,eccentric two lines initiation on face,eccentric three lines initiation on face,eccentric one line initiation on arris and eccentric two lines initiation on arris were simulated and studied by LS-DYNA software.The results show that the eccentric initiation can significantly improve the fragment velocity within the directional region.And the fragment beam is basically distributed in the radial direction of about 25°.When two eccentric lines on the arris detonate synchronously,the gain in fragment maximum dispersion velocity in the direction of the target can reach 29.73％.Using eccentric two lines sequential delay initiation on arris,it can make the axial direction angle change up to 6.77°.