A novel formulation for 3D eddy current problems with moving bodies using a Lagrangian description and BEM-FEM coupling

Author

Kurz, Stefan ; Fetzer, Joachim ; Lehner, Gunther ; Rucker, Wolfgang M.

Author_Institution

Inst. fur Theor. der Elektrotech., Stuttgart Univ., Germany

Volume

34

Issue

5

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

3068

Lastpage

3073

Abstract

This paper summarizes the theoretical background of 3D eddy current problems with moving bodies. A novel 3D formulation combining a Lagrangian description and BEM-FEM coupling is subsequently developed. The conducting and permeable bodies are described by the FEM in their respective rest frame, whereas the surrounding space is treated by the BEM in the laboratory frame. The FEM and BEM descriptions are coupled together taking into account the transformation between the different frames. The proposed formulation contains no explicit velocity terms

Keywords

boundary-elements methods; eddy currents; finite element analysis; 3D eddy current problems; BEM-FEM coupling; Lagrangian description; boundary element method; conducting bodies; finite element method; moving bodies; permeable bodies; Boundary element methods; Coils; Current density; Eddy currents; Electromechanical systems; Finite element methods; Joining processes; Laboratories; Lagrangian functions; Maxwell equations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.717718

Filename

717718