COMPUTER MODELING FOR NUCLEAR AND LIGHTNING ELECTROMAGNETIC PULSE (EMP) PROPAGATION AND COUPLING

Document Type : Original Article

Author

Ph.D., Egyptian Armed Forces.

Abstract

ABSTRACT
This paper is primarily concerned with modeling EMP propagation and coupling to
determine the external electromagnetic fields about, and hence the induced voltages and
currents in complicated systems such as aircrafts, missiles, satellites, vehicles, buildings etc.,
under the illumination of Nuclear EMP (NEMP) or Lightning EMP (LEMP). Based on the
transmission line (telegrapher) equations, a numerical procedure is developed to determine the
distributed voltages and currents induced along the transmission lines exposed to NEMP and
LEMP electromagnetic fields. The proposed procedure is applied to predict the EMP
interaction with practical configurations such as a combat vehicle, over head power lines and
telecommunication cables. The induced voltages are calculated and compared favorably with
the published results, and hence the accuracy of the proposed procedure is proven. Such
accurate coupling model is necessary for application of vulnerability assessment and
protection techniques.

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