Title :
An integral equation method for analysis of three-dimensional magnetodynamics with moving objects
Author :
Koizumi, Makoto ; Takahashi, Tsuyoshi
Author_Institution :
Hitachi Ltd., Ibaraki, Japan
fDate :
3/1/1993 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
