聂亚宁,陈亚洲,周星,等. 强电磁脉冲辐照下三绞线终端响应特性分析[J]. 电波科学学报,2023,38(6):1022-1028. DOI: 10.12265/j.cjors.2022243
      引用本文: 聂亚宁,陈亚洲,周星,等. 强电磁脉冲辐照下三绞线终端响应特性分析[J]. 电波科学学报,2023,38(6):1022-1028. DOI: 10.12265/j.cjors.2022243
      NIE Y N, CHEN Y Z, ZHOU X, et al. The terminal response characteristics of the twisted three-wire cable by strong electromagnetic pulse[J]. Chinese journal of radio science,2023,38(6):1022-1028. (in Chinese). DOI: 10.12265/j.cjors.2022243
      Citation: NIE Y N, CHEN Y Z, ZHOU X, et al. The terminal response characteristics of the twisted three-wire cable by strong electromagnetic pulse[J]. Chinese journal of radio science,2023,38(6):1022-1028. (in Chinese). DOI: 10.12265/j.cjors.2022243

      强电磁脉冲辐照下三绞线终端响应特性分析

      The terminal response characteristics of the twisted three-wire cable by strong electromagnetic pulse

      • 摘要: 为研究强电磁脉冲辐照下无人机内部三绞线的终端响应特性,本文基于传输线理论提出了三绞线在强电磁脉冲辐照下终端响应的建模方法. 首先确定了三绞线三螺旋物理结构,给出绞线束在笛卡尔坐标系下的参数方程,建立了具有均匀扭曲特征的三绞线模型;然后推导了电磁脉冲辐照下三绞线终端电流的频域方程,采用快速傅里叶逆变换得到时域解,并与CST仿真结果进行对比,验证了算法的准确性;最后分析了三绞线终端电流随线缆长度,线缆螺距,电磁场极化角、方位角、俯仰角的耦合响应规律. 结果表明:三绞线终端感应电流随线缆长度和螺距的增加而增大;入射波的俯仰角和方位角在\left 0,90\text° \right时,感应电流随入射角度的增加呈现出先增大后降低的规律. 研究结果对提高无人机电磁防护能力具有重要意义.

         

        Abstract: In order to study the terminal response characteristics of the twisted three-wire cable inside unmanned aerial vehicle(UAV) by strong electromagnetic pulse, a modeling method for the termination response of the twisted three-wire cable under strong electromagnetic pulse based on transmission line theory is proposed in this paper. Firstly, the physical structure of the triple helix of the stranded wire is determined, the parametric equations of the stranded wire bundle in the Cartesian coordinate system are given, and a model of the twisted three-wire cable with uniform twisting characteristics is established. The frequency domain equations of the terminal current of the triple stranded cable under field-to-wire are derived. The time domain solution is obtained by using the inverse fast Fourier transform and compared with the CST simulation results to verify the effectiveness of this algorithm. Finally, the coupling response law of the terminal response current with wire length, pitch, electromagnetic field polarization angle, orientation angle and pitch angle of the twisted three-wire cable is analyzed. The results show that the induced current of the twisted three-wire cable terminal increases with the increase of the wire length and pitch; the induced current increases and then decreases with the increase of the incident angle when the pitch and azimuth angle of the incident wave is in the range of \left 0,90\text° \right. The research results have important implications for improving the electromagnetic protection capability of UAV.

         

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