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

Hung Bui Duc; Vuong Dang Quoc

doi:10.6180/jase.202301_26(1).0005

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

Hung Bui Duc¹ and Vuong Dang QuocThis email address is being protected from spambots. You need JavaScript enabled to view it.¹

¹School of Electrical and Electronic Engineering, Hanoi University of Science and Technology, Viet Nam

Received: July 23, 2021
Accepted: February 19, 2022
Publication Date: March 19, 2022

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202301_26(1).0005

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

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