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Finite Element Calculation of Electromagnetic Force Based on Permeance.
Title: Finite Element Calculation of Electromagnetic Force Based on Permeance.
Author: Akio Kimura; Tomoyuki Matuzaka; Yukio Kagawa (Hachinohe Institute of Technology; Okayama University)
Source: IEEJ Transactions on Industry Applications; ISSN:0913-6339; VOL.111; NO.7; PAGE.570-577; (1991)
Abstract: This paper deals with finite element calculation of electromagnetic force based on permeance concept. The value of permeance coefficient of actuaters and motors using permanent magnet is determined mainly by effective magnetic flux density and magnetomotive force. Electromagnetic force calculation is made based on permeance, a popular concept for magnetic circuit analysis.
The paper includes:
(1) The torque and the electromagnetic force is expressed in farms of the change of permeance.
(2) Magnetic flux density distribution for determing the permeance and its coefficient is numerically calculated by finite element method. The value of the torque and the electromagnetic force thus conducted agree well with the measured values and the calculated based on other methods.
(3) The permeance coefficient in the operating point, which represents a performance capability of actuaters, is estimated.
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