Title :
Alternative demagnetization curve representations for the finite element modeling of residual magnetism
Author :
Udpa, S.S. ; Sun, Y.S. ; Lord, W.
Author_Institution :
Dept. of Electr. Eng., Colorado State Univ., Fort Collins, CO, USA
fDate :
1/1/1988 12:00:00 AM
Abstract :
A novel two-step procedure involving the use of a finite-element method and a new demagnetization curve representation to model residual magnetic fields is presented. Its advantages include excellent convergence properties. The procedure is illustrated by analyzing residual leakage fields around defects in a ferromagnetic pipe. Experimental results confirming the validity of the approach are presented
Keywords :
ferromagnetism; finite element analysis; magnetic leakage; magnetisation; remanence; alternative demagnetisation curve; convergence properties; ferromagnetic pipe; finite element modelling; residual leakage fields; residual magnetism; Convergence; Demagnetization; Equations; Finite element methods; Magnetic devices; Magnetic fields; Magnetic flux; Magnetic materials; Permanent magnets; Permeability; Poisson equations; Saturation magnetization; Sun;
Journal_Title :
Magnetics, IEEE Transactions on
