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Numerical solution of eddy current problems in ferromagnetic bodies travelling in a transverse magnetic field
Author(s) -
Peterson W.
Publication year - 2003
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.812
Subject(s) - eddy current , finite element method , galerkin method , magnetic field , bar (unit) , boundary value problem , mathematical analysis , mechanics , mathematics , transverse plane , geometry , physics , engineering , structural engineering , electrical engineering , meteorology , thermodynamics , quantum mechanics
Eddy currents are investigated in a ferromagnetic bar travelling in a transverse magnetic field. Such an open boundary field problem is analysed by a hybrid approach based on Galerkin finite element formulation coupled with a separation of variables. A steady state is considered, introducing time‐periodic boundary conditions. The resultant system of non‐linear equations is solved by an iterative procedure based on Brouwer's fixed‐point theorem. Numerical results are presented for a bar of circular cross‐section made of cast steel or cast iron. Selected examples of the field distribution and characteristics of eddy‐current power losses are enclosed in graphic form. Copyright © 2003 John Wiley & Sons, Ltd.