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Time-Domain Finite-Element Modeling of Thin Electromagnetic Shells

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4 Author(s)
Gyselinck, J. ; Dept. of Bio-, Electro- & Mech. Syst., Univ. Libre de Bruxelles, Brussels ; Sabariego, R.V. ; Dular, P. ; Geuzaine, C.

In this paper, the authors propose a novel time-domain extension of the well-known frequency-domain thin-shell approach. The time-domain interface conditions at the shell surface are expressed in terms of the average (zero-order) instantaneous flux and current density vectors in the shell, as well as in terms of a limited number of higher-order components. The method is elaborated for a magnetic vector potential finite-element formulation. The validation is done by means of two 2-D test cases with pulsed magnetic field excitation. The results are in excellent agreement with those produced by a brute-force model in which the shell is meshed finely throughout its thickness.

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Magnetics, IEEE Transactions on  (Volume:44 ,  Issue: 6 )