| 近地长电缆对高空电磁脉冲晚期部分的响应 |
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| 引用本文： | 余同彬,周璧华. 近地长电缆对高空电磁脉冲晚期部分的响应[J]. 强激光与粒子束, 2003, 15(12): 1237-1240 |
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| 作者姓名： | 余同彬 周璧华 |
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| 作者单位： | 解放军理工大学,工程兵工程学院,江苏,南京,210007;解放军理工大学,工程兵工程学院,江苏,南京,210007 |
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| 基金项目： | 国家自然科学基金资助课题(50237040) |
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| 摘 要： | 根据传输线理论，计算了高空电磁脉冲晚期部分作用下近地长电缆外导体的感应电流，给出了电缆取不同长度、端接不同阻值负载时的电流波形。计算结果表明，当电缆长度为几十km，外导体两端接地，其感应电流峰值可达数十A，且随电缆长度的增加而增加，但电流增幅随电缆长度的增加逐渐变慢。当接地电路中串接较大电阻时，感应电流峰值明显降低。
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| 关 键 词： | 高空电磁脉冲 传输线 耦合 |
| 文章编号： | 1001-4322(2003)12-1237-04 |
| 收稿时间： | 2003-04-24 |
| 修稿时间： | 2003-04-24 |
Response of long lines to late-time HEMP |
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| YU Tong-bin,ZHOU Bi-hua. Response of long lines to late-time HEMP[J]. High Power Laser and Particle Beams, 2003, 15(12): 1237-1240 |
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| Authors: | YU Tong-bin ZHOU Bi-hua |
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| Affiliation: | Engineering Institute of Engineering Corps, People''s Liberation Army University of Science & Technology, Nanjing 210007, China |
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| Abstract: | The transmission-line theory is used to calculate the late-time HEMP induced sheath current of long lines with different length and termination, which is located near or above the ground. The results show that the induced sheath current on the line with two grounded ends can reach to tens of As. As the line's length grows, the peak value of the sheath current increases, and the increase with the length slows down. When one end of a line have high serial resistance in the grounded wire(the other end is grounded), the peak value of the sheath current decreases obviously. |
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| Keywords: | Nuclear electromagnetic pulse Transmission line Coupling |
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