被动电磁装甲对金属射流欧姆加热作用的分析  

Anaiysis of Ohmic Heating Action on Shaped Charge Jet in Passive Electromagnetic Armor

作　　者：卢聘[1] 李治源[1] 苑希超[1] 齐文达[1] 陈少辉[2] 

机构地区：[1]军械工程学院弹药工程系,河北石家庄050003 [2]北京航空工程技术研究中心,北京100076

出　　处：《中北大学学报（自然科学版）》2014年第6期671-675,共5页Journal of North University of China(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51307182)

摘　　要：为探究被动电磁装甲系统对金属射流的防护机理,建立了被动电磁装甲系统对金属射流作用的等效电路模型.结合虚拟源点理论,建立了不同速度金属射流微元穿过被动电磁装甲板后的比作用量模型,并利用MATLAB软件对金属射流微元比作用量进行了数值分析,获得了金属射流微元的比作用量随速度和时间的变化规律.结果表明:金属射流受到欧姆加热作用的影响后,积累的比作用量大于汽化所需要的值;当被动电磁装甲系统初始储能达到一定值时,能使穿过电磁装甲板的金属射流发生电爆炸.In order to explore the defense mechanism of passive electromagnetic armor against shaped charge jet, an equivalent circuit model of action on the shaped charge jet in the passive electromagnetic armor was created. Combined with the virtual source points concept, a specific action model of different velocity shaped charge jet element drilling through passive electromagnetic armor plate was established, and the numerical val- ue of specific action was analyzed by MATLAB, and the rule that the specific action of jet vary with speed and time was obtained. The results show that： influenced by ohmic heating effect, the specific action accumulated is greater than the value required for vaporization; when passive electromagnetic armor system initial storage reaches a certain value, it can make the jet occur in electrical explosion.

关 键 词：金属射流 被动电磁装甲 防护机理 欧姆加热作用 比作用量 

分 类 号：TJ811[兵器科学与技术—武器系统与运用工程]