药型罩结构参数对定向多爆炸成型弹丸成型性能的影响  

The Effect of Liner Configuration Parameters on Directional MEFP Warhead

作　　者：牛文煜 王芳[1] 周末 纪刘奇 NIU Wenyu;WANG Fang;ZHOU Mo;JI Liuqi(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;No.203 Research Institute of China Ordnance Industries,Xi'an 710065,Shaanxi,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]中国兵器工业集团第203研究所,陕西西安710065

出　　处：《兵工学报》2020年第S02期89-95,共7页Acta Armamentarii

摘　　要：为进一步提高定向多爆炸成型弹丸战斗部的毁伤效能,对D形装药结构下球缺式药型罩厚度和曲率半径对弹丸成型的影响规律进行数值仿真研究。结果表明,爆轰压力对药型罩的压垮能力随着药型罩厚度和曲率半径的增加而下降;药型罩厚度1.5 mm时爆炸成型弹丸(EFP)速度最高可达2300 m/s,随着药型罩厚度的增加EFP速度线性衰减,长径比减小;当曲率半径由20 mm增大到40 mm后药型罩已经不能闭合,但EFP速度有200 m/s的提升,曲率半径对EFP的飞散角度几乎无影响。对药型罩结构进行了优化与修正,获得了更加密实的EFP.The influences of the thickness and curvature radius of liner for D-shaped charge structure on projectile formation are studied to further improve the damage effectiveness of directional multiple explosively formed projectile warhead.The results show that the crushing ability of the detonation pressure on the liner decreases with the increase in liner thickness and curvature radius;the maximum explosively formed projectile(EFP)velocity can reach 2300 m/s when the thickness of the liner is 1.5 mm.The EFP velocity increases linearly and the aspect ratio decreases with the increase in liner thickness.When the curvature radius increases from 20 mm to 40 mm,the liner can t be closed,but the EFP velocity is increased by 200 m/s.The curvature radius has almost no effect on the dispersion angle of EFP.Finally,the structure of liner was optimized and modified,which formed a better EFP.

关 键 词：多爆炸成型弹丸 定向战斗部 数值仿真 药型罩结构参数 

分 类 号：TJ410.333[兵器科学与技术—火炮、自动武器与弹药工程]