Treatment Of Errors On Shielding Finite Element Models Based On An Iterative Subproblem Approach

Abstract

The idea of this search is to improve the errors on magnetic fields, eddy currents and joule power loss densities appearing from shielding models via an iterative perturbation technique. The inaccuracy of shielding solutions obtained from a simplified mesh is corrected by volume improvements covering the actual volume thin regions. In the subproblem strategy, instead of using a full model (problem) in a full mesh, the problem will be split into sub-models (some of them being thin region) with lower dimensions, where the solution of each sub-model is influenced by all the others. Hence, an iterative process between the sub-models is proposed to get an exact solution.

Keywords

• magnetodynamics
• eddy currents
• joule losses
• thin shells
• finite element method
• iterative subproblem approach