Title :
Finite element analysis of magnetizer using Preisach model
Author :
Koh, Chang Seop ; Hong, Sun-Ki
Author_Institution :
Sch. of Electr. & Electron. Eng., Chung-Buk Nat. Univ., Cheongju, South Korea
fDate :
5/1/1999 12:00:00 AM
Abstract :
A numerical algorithm is developed to predict the distribution of the remnant magnetic flux density in the capacitor-discharge pulse magnetizer by combining the finite element method and the magnetization-dependent Preisach model. After computing the magnetic field by using the finite element method, magnetization-dependent Preisach model is used to simulate the hysteresis curve and get the magnetization. By comparing the demagnetization curves of the anisotropic rubber ferrite magnet and the cogging torque distribution of the VCR drum motor with the experimental results, the validity of the suggested algorithm is proved
Keywords :
capacitors; ferrites; finite element analysis; magnetic fields; magnetic flux; magnetisation; permanent magnet motors; permanent magnets; torque; video tape recorders; Preisach model; VCR drum motor; anisotropic rubber ferrite magnet; capacitor-discharge pulse magnetizer; cogging torque distribution; demagnetization curves; finite element analysis; finite element method; hysteresis curve simulation; magnetic field; magnetic flux density distribution prediction; magnetization; magnetization-dependent Preisach model; magnetizer; numerical algorithm; remnant magnetic flux density distribution; Computational modeling; Finite element methods; Magnetic analysis; Magnetic anisotropy; Magnetic fields; Magnetic flux; Magnetic flux density; Magnetic hysteresis; Perpendicular magnetic anisotropy; Predictive models;
Journal_Title :
Magnetics, IEEE Transactions on
