Title :
Adaptive mesh refinement for magnetic field problems involving saturable ferromagnetic parts
Author :
Luomi, J. ; Rouhiainen, H.
Author_Institution :
Lab. of Electromech., Helsinki Univ. of Technol., Espoo, Finland
fDate :
1/1/1988 12:00:00 AM
Abstract :
Adaptive mesh refinement for finite-element solution of two-dimensional magnetic fields is treated. Attention is given to problems with saturable ferromagnetic regions, high and abrupt variations of the magnetic permeability, and current density distributions. A combination of Delaunay triangulation and optimization of nodal coordinates is used for adaptive refinement. Error estimation is based on the difference between quadratic and linear interpolation polynomials. Examples of adaptive mesh generation and convergence of the method in problems of electrical machinery are presented
Keywords :
ferromagnetism; interpolation; magnetic fields; magnetic permeability; Delaunay triangulation; adaptive mesh refinement; current density; electrical machinery; finite-element solution; linear interpolation polynomials; magnetic field problems; magnetic permeability; nodal coordinates; optimization; quadratic interpolation polynomials; saturable ferromagnetic parts; Adaptive mesh refinement; Convergence; Current density; Error analysis; Finite element methods; Interpolation; Magnetic fields; Mesh generation; Permeability; Polynomials;
Journal_Title :
Magnetics, IEEE Transactions on
