Title :
Improvements of convergence characteristics of Newton-Raphson method for nonlinear magnetic field analysis
Author :
Nakata, T. ; Takahashi, N. ; Fujiwara, K. ; Okamoto, N. ; Muramatsu, K.
Author_Institution :
Dept. of Electr. Eng., Okayama Univ., Japan
fDate :
3/1/1992 12:00:00 AM
Abstract :
In order to overcome the divergence of the Newton-Raphson iteration in the nonlinear magnetic field analysis, a relaxation factor is introduced and its optimum value is examined. It is shown that the modified Newton-Raphson method proposed exhibits quick and successful convergence even in the case when the conventional Newton-Raphson method fails in convergence
Keywords :
convergence of numerical methods; iterative methods; magnetic fields; 3D magnetostatic model; Newton-Raphson iteration; Newton-Raphson method; convergence characteristics; nonlinear magnetic field analysis; relaxation factor; Convergence; Equations; Failure analysis; Laboratories; Magnetic analysis; Magnetic separation; Moment methods; Newton method; Nonlinear magnetics; Steel;
Journal_Title :
Magnetics, IEEE Transactions on
