Electronic Science and Technology ›› 2020, Vol. 33 ›› Issue (1): 19-22.doi: 10.16180/j.cnki.issn1007-7820.2020.01.004

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

WANG Wei,XIE Xutong,HU Kuan,WANG Wen   

  1. School of Electronic Engineering,Xidian University,Xi’an 710071,China
  • Received:2018-12-26 Online:2020-01-15 Published:2020-03-12
  • Supported by:
    National Natural Science Foundation of China(31870841)

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