A new approach for the characterization of indirect lightning strike effect on 3D metallic structure

In this paper we propose a new approach for analyzing the coupling between lightning strike and 3D metallic structure in unsettled regime. Our formalism is based on the resolution of the propagation equation in potential on 3D with second member. The excitation source is the electromagnetic field emitted by the lightning stroke represented the second member. The purpose of our study is the direct analysis in time domain and the simple implementation. Our results are compared to those realized by NEC-4 software.