An integral equation method for analysis of three-dimensional magnetodynamics with moving objects

Author

Koizumi, Makoto ; Takahashi, Tsuyoshi

Author_Institution

Hitachi Ltd., Ibaraki, Japan

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1516

Lastpage

1519

Abstract

A three-dimensional calculation method for magnetodynamics with moving objects has been developed. In this method, an IEM approach, based on the integral expression of magnetic vector potential, is applied to calculate eddy current, magnetization, and magnetic force. Transient current in coils can be calculated by considering the motion of the coils or magnetic substances. An external circuit including a condenser, resistance, or electric source can be considered. The method has been applied to the evaluation of the dynamic characteristics of a linear-type voice coil motor

Keywords

eddy currents; electric actuators; integral equations; linear motors; magnetisation; eddy current; external circuit; integral equation method; linear-type voice coil motor; magnetic force; magnetic vector potential; magnetization; moving objects; three-dimensional magnetodynamics; transient current; Actuators; Circuit simulation; Coils; Eddy currents; Integral equations; Magnetic analysis; Magnetic circuits; Magnetic flux; Magnetic forces; Magnetization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250691

Filename

250691