双层增强型爆炸反应装甲抗破甲能力数值模拟研究  

Numerical simulation of armor-piercing resistance of double-layer reinforced explosive reactive armors

作　　者：胡亚峰[1] 陈维波[1] 李景荣 张凯 徐宏林[1] HU Yafeng;CHEN Weibo;LI Jingrong;ZHANG Kai;XU Honglin(China Huayin Weapons Test Center,Huayin 714200,China)

机构地区：[1]中国华阴兵器试验中心,陕西华阴714200

出　　处：《兵器装备工程学报》2023年第5期39-45,共7页Journal of Ordnance Equipment Engineering

基　　金：国防科研计划项目(1700010127)。

摘　　要：构建了基于模块化组合的双层增强型爆炸反应装甲模型,采用非线性动力学计算程序LS-DYNA,对其在0°、22°、45°、68°等4种侵彻角度下抗击某型制导弹药前级战斗部的能力进行了数值模拟研究,并开展了飞行破甲试验验证,对冲击引爆效果以及钢板抛掷、切割、扰动射流的过程进行了定量计算,研究结果表明:当侵彻角度≤45°时,2层ERA均被引爆;当侵彻角度>45°,ERA-2的引爆难度增大,残余射流无法从ERA-2作用场逃逸;当侵彻角度≥68°,只有ERA-1被引爆,残余射流无法从ERA-1作用场逃逸,飞行破甲(侵彻角度为46.5°)试验结果与数值模拟结论基本一致,分析得到了射流横向偏移速度随侵彻角度变化的关系式以及钢板连续干扰的时间区间,对毁伤评估模型构建具有参考价值。This paper constructs a model of double-layer reinforced explosive reactive armors based on modular combination.It uses the nonlinear dynamic calculation program LS-DYNA to conduct numerical simulation to study the ability to resist a certain type of guided munition fore-stage warhead under four penetration angles(0°,22°,45°and 68°).The test of flight armor-piercing is then verified,and both the effect of impact detonation and the process of steel plate throwing,cutting and jet disturbing are quantitatively calculated.The research results show that when the penetration angle is not larger than 45°,both layers of ERA are detonated;when the penetration angle is greater than 45°,the detonation difficulty of ERA-2 increases,and the residual jet cannot escape from the ERA-2 reaction field.When the penetration angle surpasses 68°,only ERA-1 is detonated,and the residual jet cannot escape from the ERA-1 reaction field.The test results of the flight armor-piercing(with a penetration angle of 46.5°)are basically consistent with the numerical simulation conclusions.The relational expression of the variation of jet lateral offset velocity with penetration angle and the time interval of continuous disturbance of the steel plates are obtained,which has reference value for the construction of the damage assessment model.

关 键 词：爆炸反应装甲 抗破甲能力 毁伤效能 数值模拟 

分 类 号：O389[理学—流体力学]