Title :
Some improvements in nonlinear 3D magnetostatics
Author :
Magele, C.A. ; Preis, K. ; Renhart, W.
Author_Institution :
Inst. for Fundamentals & Theor. in Electr. Eng., Graz Univ. of Technol., Austria
fDate :
3/1/1990 12:00:00 AM
Abstract :
It is pointed out that nonlinear magnetostatic field problems must be solved by an iterative approach, either by direct iteration or by the Newton-Raphson method or by a combination of both. Some improvements are described here to decrease the number of iterations that are necessary to arrive at reliable results. CPU-time requirements with and without these improvements are compared. The improved software package is applied to an inverse problem, in which the form of the pole of a C-shaped nonlinear magnet is to be optimized
Keywords :
electrical engineering computing; electromagnets; finite element analysis; iterative methods; magnetostatics; C-shaped nonlinear magnet; CPU time; Newton-Raphson method; direct iteration; inverse problem; iterative approach; nonlinear 3D magnetostatic field; optimisation; software package; Character generation; Conducting materials; Differential equations; Finite element methods; Magnetic materials; Magnetic separation; Magnetostatics; Nonlinear equations; Permeability; Software packages;
Journal_Title :
Magnetics, IEEE Transactions on
