磁场抑制聚能射流颗粒翻转研究  

Research on Magnetic Field Inhibiting the Rotation of Shaped Charge Jet Particles

作　　者：马彬[1] 黄正祥[1] 祖旭东[1] 肖强强[1] 贾鑫[1] 

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》2016年第4期603-611,共9页Acta Armamentarii

基　　金：国家自然科学金项目(11272157);高等学校博士学科点专项科研基金项目(20123219120052)

摘　　要：通过分析磁场与聚能射流的耦合作用过程,在断裂射流颗粒发生小角度翻转的情况下,建立了当有磁场存在时聚能射流颗粒的翻转运动方程。在此基础上,采用电磁场Ansoft Maxwell分析软件仿真的方法研究了翻转射流颗粒在磁场中所受力以及力矩特性,并对结果进行了实验验证。研究结果表明:聚能射流颗粒在强磁场中的翻转运动方程能较好地描述磁场对其翻转的抑制过程,数值模拟所得射流颗粒的受力以及力矩进一步反映磁场对翻转射流颗粒的抑制特性。实验结果验证了杵体在磁场的作用下,其翻转受到修正和抑制,最终其轴线基本与射流侵彻通道轴线一致。The coupling process of magnetic field and shaped charge jet is analyzed,and an equation of rotation motion of the shaped charge jet particles in the presence of magnetic field is established in the case of small angle rotation. On this basis,a simulation method is used to study the characteristics of force and torque of jet particles in magnetic field by the software Ansoft Maxwell,and the experimental verification is also carried out. The research result show that the equation of rotation motion of the shaped charge jet particles in magnetic field could well describe the process of magnetic field inhibiting their rotation,and the numerical simulation of the force and torque of particles in magnetic field also reflects the property of inhibition. The experimental results indicate that the rotation of slug is inhibited and modified under the action of magnetic field,and the axis of slug can remain aligned with the axis of crater penetrated by the jet under the action of magnetic field.

关 键 词：兵器科学与技术 聚能射流 磁场 翻转 振荡 

分 类 号：TJ413.2[兵器科学与技术—火炮、自动武器与弹药工程]