一体式多爆炸成型弹丸的成型及侵彻性能

摘要

In order to improve the formation and penetration performance of multi-explosively formed projectiles (MEFP),we analyzed the influence of the charge cover (both its shape and wall thickness),the shell thickness,the explosive initiation modes as well as the fragments bracket on the projectile's formation effect and velocity by numerical simulation method.Based on our analysis,we proposed an integral MEFP warhead,and verified experimentally its formation process,scattered characteristics and penetration performance.The results show that the MEFP can form 17 jetting projectile charges (JPC),each with a good shape and stable flight direction.The calculated flying angle of the MEFP is 14.5°,which is well accord with the experimental result 14.8°.This MEFP warhead can effectively damage the 603 armor steel plate with a thickness of 12 mm.%为了提高一体式多爆炸成型弹丸(MEFP)的成型效果及侵彻能力,通过数值模拟分析了药型罩形状及壁厚、壳体厚度、起爆方式、破片支架对其成型及速度的影响,在此基础上给出了一种一体式MEFP战斗部,通过实验验证了该一体式MEFP战斗部结构的成型、散布特征及侵彻性能.结果表明:该战斗部可形成17枚聚能杆式弹丸(JPC),且单个JPC形状、飞行方向稳定,飞散角为14.5°,与实验结果14.8°吻合良好;该MEFP战斗部可对12 mm厚的603装甲钢靶板造成有效毁伤.