高空核爆电磁脉冲下埋地电缆瞬态响应研究  

Transient response of buried cable under electromagnetic pulse of high altitude nuclear explosion

作　　者：郭兴 张玉强 GUO Xing;ZHANG Yuqiang(School of Physics and Electronic Information,Yan’an University,Yan’an 716000,China)

机构地区：[1]延安大学物理与电子信息学院,陕西延安716000

出　　处：《延安大学学报（自然科学版）》2024年第2期110-115,共6页Journal of Yan'an University：Natural Science Edition

基　　金：国家自然科学基金项目(61961041);陕西省自然科学基础研究计划项目(2019JM-363)。

摘　　要：高空核爆电磁脉冲(HEMP)会引发埋地电缆的耦合作用,从而产生瞬态响应。针对HEMP下埋地电缆瞬态响应问题,首先分析了高空核爆电磁脉冲的时频特性;然后给出了电磁场与电缆耦合公式,明确了两者之间的耦合关系;最后基于电磁仿真软件Gprmax模拟了不同土壤成份、电缆埋深和辐射状态下的埋地电缆瞬态响应。仿真结果表明:利用Gprmax对高空核爆电磁脉冲下的埋地电缆瞬态响应进行分析是一种有效的方法,对高空核爆电磁脉冲的防护以及其他高功率电磁脉冲的电磁兼容问题分析具有参考意义。High altitude nuclear electromagnetic pulse(HEMP)can be coupled with buried cables,resulting in transient response.Aiming at the transient response of buried cables under HEMP,the time-frequency characteristics of HEMP are analyzed.Then the coupling formula between the electromagnetic field and cable is given,and the coupling relationship between them is clarified.Finally,the transient response of buried cable under different soil composition,cable burial depth and radiation state is simulated based on the electromagnetic simulation software Gprmax.The results show that Gprmax is an effective method to analyze the transient response of buried cables under HEMP,and has reference significance for the protection of HEMP and the analysis of electromagnetic compatibility question of other high-power electromagnetic pulse.

关 键 词：高空核爆电磁脉冲 埋地电缆 耦合 Gprmax 瞬态响应 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]