Investigate the effects of magnetic fields on the penetration ability of a shaped charge jet at different standoffs  

作　　者：Bin Ma Zheng-xiang Huang Zhong-wei Guan Xin Jia Xu-dong Zu Qiang-qiang Xiao 

机构地区：[1]School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing,210094,China [2]School of Engineering,University of Liverpool,Liverpool,L693GQ,UK

出　　处：《Defence Technology（防务技术）》2021年第5期1722-1730,共9页Defence Technology

基　　金：National Natural Science Foundation of China(Grant No.11972196);Youth fund of Jiangsu Natural Science Foundation(Grant Nos.BK20190433);National Natural Science Funds for Distinguished Young Scholar of China(Grant No.11702144)to provide fund for conducting experiments.

摘　　要：The influence of a magnetic field on the stability of a shaped charge jet is experimentally investigated at standoffs of 490,650 and 800 mm.The experimental results without and with the magnetic field are compared in terms of the shaped charge jet form,stability and penetration ability.A theoretical model based on one-dimension fluid dynamics is then developed to assess the depth of penetration of the shaped charge at those three standoffs and magnetic conditions.The results show that the penetration capability can be enhanced in more than 70%by the magnetic field.The theoretical calculations are compared with the experimental results with reasonably good correlation.In addition,the parameters introduced in the theory are discussed together with the experiments at three standoffs studied.

关 键 词：Shaped charge jet STABILITY PENETRATION Magnetic field Coupling mechanism 

分 类 号：TQ560.1[化学工程—炸药化工] TJ410.34[兵器科学与技术—火炮、自动武器与弹药工程]