An iterative subproblem method for thin shell finite element magnetic models

Tóm tắt

An iterative sub-problem method for thin shell finite element magnetic models is herein performed to correct the inaccuracies near edges and corners arising from thin shell models (e.g., cover of transformers, thin shells, steel laminations). Volume thin regions are replaced by surfaces but neglect border effects in the vicinity of their edges and corners. This leads to errors for solving the thin shell finite element magnetic models.A sub-problem method allows users to split a complete problem (e.g., a system composed of stranded inductors and conducting and magnetic possibly thin regions) into a series of sub-problems that define a sequence of changes, with the complete solution expressed as the sum of the sub-problem solutions. Each sub-problem is solved on its own domain and mesh, which facilitates meshing and may increase computational efficiency.