Coupling of Finite and Boundary Elements for Transient Eddy Current Problems

Dalibor Lukas, Petr Kacor, Lubomir Ivanek, Veleslav Mach, Christian Scheffler

Coupling of Finite and Boundary Elements for Transient Eddy Current Problems

Číslo: 2/2017
Periodikum: Advances in Electrical and Electronic Engineering
DOI: 10.15598/aeee.v15i2.2262

Klíčová slova: Boundary elements; eddy current problem; finite elements, Hraniční prvky; Problém s vířivým proudem; Konečné prvky.

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Anotace: A symmetric coupling of methods of finite and boundary elements for numerical solution of transient eddy current problems is described. This is an essential step in modelling of electromagnetic forming of metalic sheets. The finite element method is employed in the conducting region of the metalic sheet. The boundary element method relies on the Stratton-Chu representation formula and it models the electromagnetic field in the air including its decay at infinity. We impose external currents by the Biot-Savart law.