Effect of armor structure on defense performance of passive electromagnetic armor against shaped charge jet

Qi Wenda; Lei Bin; Xiang Hongjun; Meng Xueping

doi:10.11884/HPLPB201527.095007

Volume 27 Issue 09

Sep. 2015

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Article Navigation > High Power Laser and Particle Beams > 2015 > 27(09): 095007

Yu Qing, Zhang Hui, Ma Danni. Numerical analysis of plasma and shock wave characteristics of the discharge in liquid[J]. High Power Laser and Particle Beams, 2021, 33: 075001. doi: 10.11884/HPLPB202133.200321

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Qi Wenda, Lei Bin, Xiang Hongjun, et al. Effect of armor structure on defense performance of passive electromagnetic armor against shaped charge jet[J]. High Power Laser and Particle Beams, 2015, 27: 095007. doi: 10.11884/HPLPB201527.095007

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Effect of armor structure on defense performance of passive electromagnetic armor against shaped charge jet

doi: 10.11884/HPLPB201527.095007

1.
Department of Ammunition Engineering,Mechanical Engineering College,Shijiazhuang 050003,China

Received Date: 2015-05-28
Rev Recd Date: 2015-07-08
Publish Date: 2015-09-14

Abstract

Abstract

To make the shaped charge jet (SCJ) against the passive electromagnetic armor (PEA) more effectively and reduce the dependency about structural design of PEA on different SCJ parameters, a multi-layer plate armor structure is advanced. Through analyzing the equivalent circuits of different multi-layer plates PEA, an outcome can be obtained that the current passing the SCJ and armors increases with the increasing of the armor number when the resistance of the PEA almost equals the SCJ resistance. Moreover, multi-layer plates can reduce the PEA inductance. A mathematical model about the acting time of pulse current on SCJ is established by analyzing the motion law of SCJ among the armors. The results of the numerical calculation indicate that the multi-layer plate armor structure can reduce the valid penetration length of SCJ tip and tail and can increase the acting time of pulse current on SCJ.
- passive electromagnetic armor,
- shaped charge jet,
- equivalent circuits,
- pulse current

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