摘要
针对活性材料弹丸如何更有效应用于制式弹丸,提高动能弹丸的威力,进行了不同初始条件下活性材料弹丸与靶匹配的研究。利用非线性动力学数值模拟软件Autodyn-3D对弹靶作用行为进行了仿真计算。基于多组口径活性材料弹丸对5 mm、20 mm、35 mm RHA靶进行侵彻的数值模拟结果,分析了不同弹靶作用条件下,弹靶毁伤状态、弹丸芯体应力分布规律及轴向剩余速度变化规律。研究发现:侵彻5 mm RHA靶时,弹丸剩余侵彻性能较好但内部应力值较低,不利于爆炸作用的发生;侵彻20 mm和35 mm RHA靶时,弹丸在小口径时侵彻能力表现不佳,但在较大弹丸口径时其轴向剩余速度及内部应力峰值显著升高且靶厚对内部应力峰值的影响将显著减小。基于多组数值对多组数据进行了拟合分析,构建了经验模型,获得了弹靶作用匹配关系。研究结果对于更科学使用活性材料弹丸对付战场目标,提高激活率与对目标毁伤效能具有促进作用。
In view of how the active material projectiles can be applied more effectively to the production projectiles to improve the power of the dynamic energy projectiles,a study was carried out on how the active material projectiles matched the target plate under different initial conditions.Autodyn-3D,a nonlinear dynamics numerical simulation software,was used to simulate the action behavior of the projectile.Based on the numerical simulation results of the invasion of 5 mm,20 mm and 35 mm RHA target plates by multi-group active material projectiles,the damage status of the projectile target,the stress distribution law of the projectile core and the change law of axial residual velocity were analyzed under different target conditions.The study found that when the 5 mm RHA target plate is invaded,the residual impact performance of the projectile is better but the internal stress value is low,which is not conducive to the occurrence of explosive action,and when the 20 mm and 35 mm RHA target plate is invaded,the pellet intrusion ability is not good at small caliber,but its axial residual speed and internal stress peak increase significantly and the impact of the target thickness on the internal stress peak will be significantly reduced.Based on the multi-set numerical values,the fitting analysis of the multi-group data is carried out,the empirical model is constructed,and the matching relationship of the bullet-target effect is obtained.The results of the study are of great significance for the more scientific use of active material projectiles against battlefield targets,to improve the activation rate and the effectiveness of target damage.
作者
张金忠
侯聪
李向荣
罗鑫
田延泰
ZHANG Jinzhong;HOU Cong;LI Xiangrong;LUO Xin;TIAN Yantai(Department of Weapons and Control,Army Armored Force Academy,Beijing 100072,China)
出处
《弹箭与制导学报》
北大核心
2021年第6期112-117,共6页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
活性材料弹丸
数值模拟
激活率
弹靶匹配
active material projectiles
numerical simulation
activation rate
bullet target matching
