| 杨集,李玉春,刘秋实,熊磊,董见.高空核电磁脉冲空间分布特征研究[J].装备环境工程,2024,21(10):151-157. YANG Ji,LI Yuchun,LIU Qiushi,XIONG Lei,DONG Jian.Spatial Distribution Characteristics of High-altitude Nuclear Electromagnetic Pulse[J].Equipment Environmental Engineering,2024,21(10):151-157. |
| 高空核电磁脉冲空间分布特征研究 |
| Spatial Distribution Characteristics of High-altitude Nuclear Electromagnetic Pulse |
| 投稿时间：2024-04-14 修订日期：2024-06-14 |
| DOI：10.7643/issn.1672-9242.2024.10.019 |
| 中文关键词: 高空核电磁脉冲 装备环境 高空核爆 数值计算 电场强度 空间分布中图分类号:O441 文献标志码:A 文章编号:1672-9242(2024)10-0151-07 |
| 英文关键词:high-altitude nuclear electromagnetic pulse equipment environment high-altitude nuclear explosion numerical calculation electric field intensity spatial distribution |
| 基金项目: |
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| Author | Institution |
| YANG Ji | Strategic Technology Equipment Development Center, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
| LI Yuchun | Strategic Technology Equipment Development Center, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
| LIU Qiushi | Strategic Technology Equipment Development Center, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
| XIONG Lei | Strategic Technology Equipment Development Center, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
| DONG Jian | Strategic Technology Equipment Development Center, China Academy of Engineering Physics, Sichuan Mianyang 621900, China |
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| 中文摘要: |
| 目的 评估一定范围内高空核电磁脉冲，计算高空核电磁脉冲电场强度，以及研究电场强度的空间分布特征。方法 从高空核爆炸物理过程出发，结合现有的理论成果和相关计算公式，对高空核爆产生早期高空核电磁脉冲的场强数值计算过程进行推导，并编写相应计算程序。结果 得到指定情况下的核电磁脉冲时域波形和观测范围内电场强度分布，计算结果与IEC标准中变化规律一致。此外，对不同爆炸当量、爆炸高度、爆炸位置和不同观测位置下电场强度进行了计算，并对高空核电磁脉冲空间分布特征进行了分析，讨论了各主要计算参数对高空核电磁脉冲电场强度和时域波形的影响。结论 爆炸高度增加，高空核电磁脉冲场强峰值降低，到达场强峰值的时刻延后。随着爆炸当量的增大，高空核电磁脉冲场强峰值也会增加，但会随着当量变大增速变缓直至趋向饱和，到达电场峰值的时刻也会相对提前。随着纬度的增大，场强峰值也随之增大。随着观测高度的增大，场强峰值呈线性趋势有一定升高。 |
| 英文摘要: |
| The work aims to evaluate the high-altitude nuclear electromagnetic pulse within a certain range, calculate the electric field intensity of the high-altitude nuclear electromagnetic pulse and investigate the spatial distribution characteristics of the electric field intensity. Based on the physical process of high-altitude nuclear explosion, combined with the existing theoretical results and related calculation formulas, the numerical calculation process of field strength of early high-altitude nuclear electromagnetic pulse generated by high-altitude nuclear explosion was deduced, and the corresponding calculation program was compiled.The time-domain waveform of nuclear electromagnetic pulse and the distribution of electric field intensity in the observation range under the specified condition were obtained. The calculation results were consistent with the variation law in IEC standard. In addition, the electric field intensity under different explosion equivalents, explosion heights, explosion positions and different observation positions was calculated, and the spatial distribution characteristics of high-altitude nuclear electromagnetic pulse were analyzed. The effects of main calculation parameters on the electric field intensity and time domain waveform of high altitude nuclear electromagnetic pulse were discussed. With the increase of explosion height, the peak value of high-altitude nuclear electromagnetic pulse field intensity decreases, and the time to reach the peak value of field intensity is delayed. With the increase of the explosion equivalent, the peak value of the high-altitude nuclear electromagnetic pulse field intensity will also increase, but the growth rate will slow down with the increase of the equivalent until it tends to be saturated, and the time to reach the peak value of the electric field will be relatively advanced. With the increase of latitude, the peak value of field intensity also increases. With the increase of observation height, the peak value of field strength increases linearly. |
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