Title :
A Stepped Nonlinear Solver for Nonlinear Magnetic Materials With Hysteresis
Author :
Young, John C. ; Gedney, Stephen D. ; Adams, Rob ; Schneider, Carl ; Burgy, Chris
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Kentucky, Lexington, KY, USA
Abstract :
A stepped nonlinear solution method based on differential susceptibility is presented for the quasi-magnetostatic analysis of nonlinear magnetic materials. The stepped solver is applicable to hysteretic materials and supports a permanent magnetization. A locally corrected Nyström discretization of the magnetostatic volume integral equation is used to implement the stepped solver. Characterization of the stepped solver is performed using various magnetic material models which support hysteresis. Solver accuracy is validated using Team Workshop Problem 13, analytic results of a magnetic sphere with hysteresis, and against measured data for a hollow steel pipe.
Keywords :
magnetic hysteresis; magnetic susceptibility; magnetostatics; permanent magnets; hollow steel pipe; locally corrected Nystrom discretization; magnetic hysteresis; magnetic material models; magnetic sphere; magnetic susceptibility; magnetostatic volume integral equation; nonlinear magnetic materials; permanent magnetization; quasimagnetostatic analysis; stepped nonlinear solution method; stepped nonlinear solver; Computational modeling; Magnetic field measurement; Magnetic hysteresis; Magnetic susceptibility; Magnetization; Magnetostatics; Materials; Hysteresis; Locally Corrected Nystrom method; Magnetostatics; hysteresis; integral equation methods; locally corrected Nystr??m method; magnetostatics; non-linear solver; nonlinear solver;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2376993
