Correction of Thin Shell Finite Element Magnetic Models via a Subproblem Method

A subproblem finite-element method is developed for correcting the inaccuracies near edges and corners inherent to thin shell models, for both magnetostatic and magnetodynamic problems. A thin shell solution, supported by a simplified mesh near the thin structures, serves as a source of a correction...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2011-05, Vol.47 (5), p.1158-1161
Main Authors: Dular, Patrick, Dang, Vuong Q., Sabariego, Ruth V., Kahenbuhl, Laurent, Geuzaine, Christophe
Format: Article
Language:English
Subjects:
Computational modeling
Cross-disciplinary physics: materials science
rheology
Electric power
Electrical & electronics engineering
Engineering Sciences
Engineering, computing & technology
Exact sciences and technology
Finite element methods
Finite-element method (FEM)
Inductors
Ingénierie électrique & électronique
Ingénierie, informatique & technologie
Integrated circuit modeling
Magnetic domains
Magnetism
Magnetostatics
Materials science
model refinement
Other topics in materials science
Physics
subdomain method
Surface impedance
thin shell
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Summary:A subproblem finite-element method is developed for correcting the inaccuracies near edges and corners inherent to thin shell models, for both magnetostatic and magnetodynamic problems. A thin shell solution, supported by a simplified mesh near the thin structures, serves as a source of a correction problem with the actual volumic thin regions alone in a homogeneous medium, concentrating the meshing effort on the thin regions only. Improvements of local fields are efficiently achieved and allow accurate force and loss calculations.
ISSN:0018-9464
1941-0069
1941-0069
DOI:10.1109/TMAG.2010.2076794