偏心起爆周向多爆炸成型弹丸战斗部实验研究

为进一步提高周向多爆炸成型弹丸(MEFP)战斗部的毁伤效能，设计一种偏心起爆MEFP战斗部，制备了中心起爆和偏心起爆两种原理样机，并进行了静爆实验。结合数值模拟方法分析了周向球缺型药型罩形成爆炸成型弹丸(EFP)的成型及飞散过程，模拟结果表明，两点偏心起爆模式下，EFP成型后的长径比更大，且更密实；对两种不同起爆模式下MEFP战斗部的静爆实验结果进行对比，偏心起爆模式能够有效提升EFP毁伤元的平均速度、分布密度和侵彻威力。研究结果表明，两点偏心起爆可以有效提高MEFP战斗部的综合毁伤效能，为MEFP战斗部的设计与应用提供了参考。

Experimental Research on Eccentric Initiation MEFP Warhead

A new asymmetrical initiation multiple explosively formed penetrator(MEFP) warhead is designed to improve the damage efficiency of MEFP warhead.Two principle prototypes with central initiation and eccentric initiation were made for static detonation experiment.The forming and dispersing processes of MEFP with hemispherical liners under different ways of initiation are analyzed through numerical simulation.The numerically simulated results illustrate that the length-diameter ratio of EFP is larger,and the EFP is more dense in two-point eccentric initiation mode.The static detonation experimental results of MEFP warheads in two different initiation modes are compared.The comparative results show that the ecentric initiation can is used to improve the velocity,density distribution and penetration power of EFP.The two-point eccentric initiation can effectively improve the comprehensive damage effectiveness of MEFP warhead.