电磁脉冲对方舱簧片屏蔽门耦合效应的数值分析  

Numerical Analysis on Electromagnetic Pulse Coupling to the Shelter's Shielding Door with Metallic Spring

作　　者：谭坚文[1] 沈卫东[1] 伍虹霖[1] 王建立[1] 杜明磊[1] 

机构地区：[1]重庆通信学院特种电源重点实验室,重庆400035

出　　处：《核电子学与探测技术》2013年第10期1237-1241,共5页Nuclear Electronics & Detection Technology

基　　金："十一五"国防预研项目

摘　　要：利用时域有限差分法研究了高空核电磁脉冲对方舱簧片屏蔽门的耦合效应,采用阶梯型结构等效了屏蔽门的弧形金属弹簧片,分析了电磁脉冲不同极化方向、入射角度以及簧片间距、刀片深度和门框填充材料对耦合效应的影响,研究表明:簧片屏蔽门对电磁脉冲具有较高的屏蔽效能,通过减小簧片间距,加大刀片插入深度和填充门框导电材料等方法可进一步提高簧片屏蔽门的屏蔽效能。计算结果为方舱屏蔽设计和电磁防护加固提供了理论参考。The ladder- type structure is made to equivalent to the curved metallic spring. The effect of electro- magnetic pulse coupled to the shielding door with metallic spring in shelter is studied using finite difference time -domain method. The influences of different polarization direction, incident angle, spring distance, blade depth and filling material to the coupling effect are analyzed in this paper. The calculation results indicate that the shielding effective of shielding door with metallic spring is quite high. The shielding effective can be ad- vanced by decreasing spring distance, increasing blade insertion depth and filling electrically conductive materi- als. The calculation results provide a theoretical reference for shield design and electromagnetic protection rein- forcement of shelter.

关 键 词：电磁脉冲 时域有限差分 方舱 屏蔽门 金属簧片 

分 类 号：TN03[电子电信—物理电子学]