Title :
Analysis of eddy currents with Landau-Lifshitz equation as a constitutive relation
Author :
Serpico, Claudio ; Mayergoyz, I.D. ; Bertotti, Giorgio
Author_Institution :
Dipartimento di Ingegneria Elettrica, Naples Univ., Italy
fDate :
9/1/2001 12:00:00 AM
Abstract :
Analysis of eddy currents in magnetically nonlinear media is presented for the case when dynamical magnetic material properties are described by the Landau-Lifshitz equation. A novel finite difference scheme that preserves (conserves) the magnitude of magnetization vector is developed. This scheme is linear and has a second-order truncation error. The scheme is applied to the analysis of eddy currents and numerical testing of its accuracy is reported for the case of circularly polarized driving magnetic fields
Keywords :
eddy currents; finite difference methods; magnetisation; nonlinear media; Landau-Lifshitz equation; circularly polarized driving magnetic fields; constitutive relation; dynamical magnetic material properties; eddy currents; finite difference scheme; magnetically nonlinear media; magnetization vector; numerical testing; second-order truncation error; Eddy current testing; Eddy currents; Finite difference methods; Finite wordlength effects; Magnetic analysis; Magnetic materials; Magnetic properties; Magnetization; Nonlinear equations; Vectors;
Journal_Title :
Magnetics, IEEE Transactions on
