摘要
为研究高速动能导弹对装甲目标的毁伤特性,构建了基于25 mm弹道炮平台的缩比动能弹体高速毁伤模拟试验平台.试验获得了靶体的破坏形貌以及弹靶的动量传递关系,在此基础上建立了弹体的冲击侵彻仿真模型,结合试验结果验证了仿真模型的可靠性,并分析了高速动能导弹和杆式弹对金属厚靶的毁伤特性,研究了结构件质量比例对高速动能导弹冲击破坏特性和动量传递结果的影响规律.研究结果表明:杆式弹撞击时靶内压力场呈现出半球形分布特点,弹坑为圆孔状;动能导弹壳体与弹芯对应的弹靶碰撞部分均为高压力区域,侵彻后弹坑为“喇叭状”;相同速度下动能导弹的量纲一开坑直径与侵彻深度均小于杆式弹体,当撞击速度足够高时,动能导弹的撞击冲量与动量传递因子均会大于杆式弹体;此外,动能导弹内部结构件的质量比例关系对其侵彻破坏与动量传递结果有显著影响.随着穿甲弹芯质量比例的下降,动能导弹在相同速度下的量纲一侵彻深度有所下降,但其量纲一开坑直径、开坑深度和动量传递因子大小均有所提升.
To study the damage characteristics of high velocity kinetic energy missiles on armored targets,a scaled-down kinetic energy projectile high velocity damage simulation test platform was constructed based on a 25 mm ballistic gun platform.The experiment obtained the damage morphology of the target and the momentum transfer relationship between projectiles and targets.Based on this,an impact penetration simulation model of the projectile was established.The reliability of the simulation model was verified with experimental results,and the damage characteristics of high velocity kinetic energy missiles and rod projectiles on metal thick targets were analyzed.The influence of the mass ratio of structural components on the impact damage characteristics and momentum transfer results of high velocity kinetic energy missiles was studied.The research results indicate that when rod projectiles impact,the pressure field inside the target exhibits a hemispherical distribution characteristic,and the crater is circular in shape.The collision parts of the shell and the core of the kinetic energy missile correspond to high-pressure areas,and after penetration,the crater is"trumpetshaped".Under the same velocity,the dimensionless entrance hole diameter and penetration depth of kinetic energy missiles are smaller than those of rod projectiles.When the impact velocity is sufficiently high,both the impact impulse and momentum transfer factor of kinetic energy missiles will be greater than those of rod projectiles.In addition,the mass ratio relationship of internal structural components of kinetic energy missiles has a significant impact on their penetration damage and momentum transfer results.As the mass ratio of the armorpiercing core decreases,the dimensionless penetration depth of kinetic energy missiles at the same velocity decreases,but the dimensionless entrance hole diameter,entrance hole depth and momentum transfer factor all increase.
作者
杨泽寰
孟繁霖
张先锋
刘闯
谈梦婷
熊玮
YANG Zehuan;MENG Fanlin;ZHANG Xianfeng;LIU Chuang;TAN Mengting;XIONG Wei(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing,Jiangsu 210094,China;China Beijing Aerospace Technology Institute,Beijing 100074,China)
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2024年第6期565-578,共14页
Transactions of Beijing Institute of Technology
基金
国家自然科学基金资助项目(12141202,12202205)。
关键词
高速动能导弹
杆式弹体
高速侵彻
动量传递
high velocity kinetic energy missile
rod projectile
high velocity penetration
momentum transfer
