穿爆弹垂直侵彻杀爆榴弹外壳的数值模拟  

Numerical Simulation Study on the Normal Penetration of Projectiles into the Shell of Explosive Grenade

作　　者：王雪飞 尹建平[1] 赵飞扬 WANG Xuefei;YIN Jianping;ZHAO Feiyang(School of Mechanical Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学机电工程学院,太原030051

出　　处：《兵器装备工程学报》2018年第12期68-72,共5页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金项目(11572291);山西省研究生联合培养基地人才培养项目资助项目(20160033)

摘　　要：使用Truegrid软件建立了穿爆弹与杀爆榴弹的有限元模型,并使用LS-DYNA有限元软件对侵彻过程进行数值模拟,计算得到了穿爆弹剩余质量与剩余速度的曲线。结果表明:拦截弹初始速度在700～1 200 m/s范围内变化时,随着速度的增大,其侵彻能力逐渐增强,进入目标弹内部的时间也相对提前,弹体破损逐渐减小;拦截弹内部装填的低感度B炸药均未因冲击而起爆,拦截弹速度为1 100 m/s时,能够顺利进入目标弹,且此时炸药状态较为稳定,最大压力仅为1.68 GPa。The finite element model of the penetration and the explosive grenade was established by using Truegrid software,and the penetration process was numerically simulated using the LS-DYNA finite element software.The curve of the residual mass and residual velocity of the penetration is calculated.The results show that when the initial velocity of the interceptor is changed within the range of 700~1 200 m/s,its penetration ability is gradually increased with the increase of the initial velocity of the interception projectile,and the time of entering the target projectile is relatively advanced,and the damage of the missile is gradually reduced.The low-sensitivity Comp-B loaded inside the interception projectile did not detonate due to the impact.When the interception projectile velocity is 1 100 m/s,the target projectile can be smoothly entered.At this time,the explosive state is relatively stable,and the maximum pressure is only 1.68 GPa.

关 键 词：拦截弹 目标弹 侵彻 数值模拟 

分 类 号：TJ413[兵器科学与技术—火炮、自动武器与弹药工程]