ERA对长杆穿甲弹减速作用的数值模拟  

Numerical Simulation of Deceleration Effect of Explosive Reactive Armor on Long Rod Armor Piercing Projectile

作　　者：陈宁 段卫东[1,2] 陈沛 余福进 徐华建 CHEN Ning;DUAN Wei-dong;CHEN Pei;YU Fu-jin;XU Hua-jian(Wuhan University of Science and Technology,Wuhan 430065,China;Hubei Province Intelligent Blasting Technology Research Center,Wuhan 430065,China;China Railway Siyuan Group Engineering Construction Co.,Ltd.,Wuhan 430063,China;Wuhan Blasting Company,Wuhan 430023,China)

机构地区：[1]武汉科技大学,武汉430065 [2]湖北省智能爆破技术研究中心,武汉430065 [3]中铁四院集团工程建设有限责任公司,武汉430063 [4]武汉爆破有限公司,武汉430023

出　　处：《爆破》2021年第2期45-50,57,共7页Blasting

摘　　要：为了研究爆炸反应装甲(ERA)对长杆式钨钢穿甲弹的减速作用,以英国尾翼稳定脱壳穿甲弹L23A1为背景,利用LS-DYNA有限元软件设计了长杆穿甲弹模型,并建立长杆式穿甲弹以不同速度和攻角侵彻爆炸反应装甲的数值模型,对不同工况下侵彻全过程和穿甲弹弹体各部位速度进行了分析。结果表明:爆炸反应装甲对长杆型穿甲弹具有明显的减速作用,且与穿甲弹轴线和反应装甲法线所夹攻角有关,攻角越大,减速作用越好,爆炸反应装甲的防护性能越强;弹体在侵彻过程中所受减速作用具有滞后性,距离弹头越远减速开始的时间越滞后,并由此设计了一种具有两级弹头的新型对爆炸反应装甲穿甲弹,为反装甲武器系统设计者在弹体结构优化方面提供有益的借鉴与参考。In order to study the deceleration effect of explosive reactive armor(ERA)on long rod type tungsten steel armor piercing projectile,the long rod armor piercing projectile model was designed by using LS-DYNA finite element software,and the numerical model of long rod armor piercing projectile penetrating explosive reaction armor with different speeds and angles of attack was established and the penetration process and speed of each part of the armor-piercing projectile were analyzed.The results show that the explosive reactive armor has obvious deceleration effect on the long rod penetrator,which is related to the attack angle between the axis of the penetrator and the normal of the reaction armor.The larger the angle of attack is,the better the deceleration effect is,and the stronger the protection performance of the explosive reaction armor is;the deceleration effect of the projectile body in the process of penetration has hysteresis,and the farther away from the warhead,the slower the starting time of deceleration.A new type of explosive reaction armor piercing projectile with two-stage warhead is designed,which can provide useful reference for the designers of anti-Armor Weapon System in the aspect of structure optimization.

关 键 词：爆炸反应装甲 长杆式穿甲弹 爆炸力学 数值模拟 

分 类 号：TJ410[兵器科学与技术—火炮、自动武器与弹药工程]