高空核电磁脉冲照射下车辆表面感应电流研究

doi:10.16180/j.cnki.issn1007-7820.2020.01.004

Abstract

Abstract:

The induced current on the surface of vehicles under high-altitude nuclear electromagnetic pulse (HEMP) illumination is an critical problem of the electromagnetic protection of armored vehicles. The high-altitude nuclear electromagnetic pulse waveform released by IEC6100 was selected in this study to establish the simulation electromagnetic model of induced current on vehicle surface under high-altitude nuclear electromagnetic pulse irradiation. Meanwhile, the CST software based on FDTD algorithm was used for simulation analysis. Through changing the irradiation direction of HEMP and removing the gun tube, the variation of the maximum and peak areas of the induced current on the vehicle surface at different frequency points were compared and studied. Experimental results showed that the maximum induced current of vehicle surface at different angles was positively correlated with the complexity of vehicle surface structure in the irradiation direction, and the induced current in the gun barrel was much higher than that in other parts. The reference value of the maximum induced current of vehicle was 1.82×10 ³ A·m ^-1, and the key protection frequency range was 0~40 MHz.

Key words: HEMP, armored vehicle, electromagnetic model, CST, irradiation direction, induced current

CLC Number:

TN97

WANG Wei,XIE Xutong,HU Kuan,WANG Wen. Study on the Surface Induced Current of Vehicles Irradiated by High-altitude Nuclear Electromagnetic Pulse[J].Electronic Science and Technology, 2020, 33(1): 19-22.

Figures/Tables 8

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标准	α/s^-1	β/s^-1	k	t_r/ns	^$\tau$_FWHM /ns	j/J·m^-2
1976 Publication	1.5E6	2.6E8	1.04	7.8	483	2.350
Bell Lab	4.0E6	4.76E8	1.05	4.1	184	0.891
DOD-STD- 2169	3.0E7	4.76E8	1.285	3.1	31	0.151
抗辐射加固新标准	1.0E7	3.4E8	1.15	5	80	0.401
IEC6100-2-9	4.0E7	6.0E8	1.30	2.5	23	0.114

Study on the Surface Induced Current of Vehicles Irradiated by High-altitude Nuclear Electromagnetic Pulse

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