动能导弹弹体的冲击载荷理论模型  

Theoretical Model for Impact Load of Kinetic Energy Missile

作　　者：杨泽寰 张先锋[1] 刘闯[1] 谈梦婷 熊玮[1] YANG Zehuan;ZHANG Xianfeng;LIU Chuang;TAN Mengting;XIONG Wei(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《兵工学报》2024年第S01期20-32,共13页Acta Armamentarii

基　　金：国家自然科学基金项目(12141202、12202205)。

摘　　要：动能导弹是一种结合动能打击效应和穿甲侵彻效应的新型反装甲武器,为探索动能导弹冲击作用过程的载荷特性,通过考虑不同速度段的弹靶作用行为,建立动能导弹弹体的冲击载荷计算模型。计算结果表明:弹体的冲击载荷与弹体几何特征、撞击速度、密度与强度等属性均有直接关系。低速时弹体的冲量变化较小,而高速时破碎质量反溅会使冲量明显增大,且壳体的冲量贡献在撞击冲量中的占比更大;冲击载荷曲线的幅值会随着壳体强度和密度的增加而提升,但密度对载荷波形特征的影响更为明显;相同速度下,壳体强度对弹体动量传递因子的影响较小,而壳体密度则对其影响较大,传递因子曲线会随着密度增加呈现先上升后降低的趋势。Kinetic energy missile is a new type of anti-armor weapon that combines the effects of kinetic energy strike and armor penetration,but there is currently no relevant theoretical model available for reference regarding the load characteristics and influencing factors of impact process.The load characteristics of the impact process of kinetic energy missiles are studied.By considering the missile-target action behaviors in different velocity ranges,a calculation model for the impact load of kinetic energy missile body is established.The calculated results indicate that the impact load of missile is directly related to the geometric characteristics,impact velocity,density,strength,and other properties of missile.The change in the impulse of missile is relatively small at low velocity,but at high velocity,the rebound of the shattered mass significantly increases the impulse,and the impulse contribution of the shell accounts for a larger proportion of the impact impulse.The amplitude of impact load curve increases with the increase of shell strength and density,but the influence of density on the load waveform characteristics is more obvious.At the same velocity,the influence of shell strength on the momentum transfer factor of missile is relatively small,but the influence of shell density has a significant effect on it.At the same velocity,the influence of shell strength on the momentum transfer factor of missile is relatively small,while the shell density has a greater impact on it,The transfer factor curve shows a trend of increasing first and then decreasing with the increase in density.

关 键 词：动能导弹 冲击载荷 高速侵彻 动量传递 

分 类 号：O385[理学—流体力学]