多层隔爆结构对威力可控战斗部能量输出的影响  

The Influence of Multi-layer Explosion-proof Structure on the Energy Output of Power Controllable Warhead

作　　者：于佳鑫 李伟兵[1] 李军宝 毕伟新 罗渝松 YU Jiaxin;LI Weibing;LI Junbao;BI Weixin;LUO Yusong(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33-42,共10页Acta Armamentarii

基　　金：国家自然科学基金项目(12302437);江苏省自然科学基金(SBK2023045424)。

摘　　要：为实现战斗部毁伤威力的可控输出,利用隔爆装置将炸药分隔开,形成一种轴向多层复合装药结构,通过转换3种起爆方式调节爆轰炸药比例,从而实现毁伤威力的3档可控输出。采用数值模拟方法,研究隔爆材料性能及多层介质间阻抗匹配模式对冲击波衰减性能的影响,进而将效果最优的3层隔爆结构应用于威力可控战斗部,并通过仿真和试验验证其3档威力区分度。仿真试验结果表明:隔爆装置所占空间一定时,合理选择隔爆材料组成3层隔爆结构的隔爆性能优于双层隔爆结构,较单层结构有很大提升;对于双层隔爆结构阻抗逆序形式比顺序形式对冲击波的衰减作用更强;3种起爆方式下破片最大初速分别为1 500 m/s、2 000 m/s和2 300 m/s,壳体总能量分别为9.27 Terg、26.45 Terg和34.87 Terg。所提出的3层隔爆结构可有效减少装药空间的浪费,应用于威力可控战斗部后可有效实现3档威力的可控输出且区分度良好,为威力可控战斗部设计提供了重要参考。To achieve the controllable output of warhead damage power,an explosion-proof device is used to separate the explosives for forming an axial multi-layer composite charge structure.The proportion of detonation explosives is adjusted by converting three detonation methods,thereby achieving three levels of controllable output of damage power.The effects of explosion-proof material properties and impedance matching modes among multiple layers of media on the shock wave attenuation performance is investigated by using the numerical simulation methods.The most effective three-layer explosion-proof structure is then applied to a power controllable warhead,and its three level power differentiation is verified through simulation.When the space occupied by the explosion-proof device is fixed,the explosion-proof performance of three-layer explosion-proof structure made of reasonably selected explosion-proof materials to form is better than that of double-layer explosion-proof structure,which is greatly improved compared to a single-layer structure.For double-layer explosion-proof structure,the inverse form of impedance has a stronger attenuation effect on shock waves compared to the sequential form.The maximum initial velocities of fragments under three detonation methods are 1500 m/s,2000 m/s,and 2300 m/s,respectively,and the total energy of the shell is 9.27 Terg,26.45 Terg,and 34.87 Terg,respectively.The proposed three-layer explosion-proof structure can effectively reduce the waste of charge space,and when applied to a power controllable warhead,it can effectively achieve the controllable output of three levels of power with good differentiation,providing important reference for the design of controllable warheads.

关 键 词：威力可控战斗部 多层介质隔爆结构 冲击波衰减 起爆方式 

分 类 号：TJ410[兵器科学与技术—火炮、自动武器与弹药工程]