Calculation of forces on magnetised ferrous cores using the Maxwell stress method

Author

Wignall, A.N. ; Gilbert, A.J. ; Yang, S.J.

Author_Institution

G.E.C. Large Machines Ltd., Warwickshire, UK

Volume

24

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

459

Lastpage

462

Abstract

The authors examine the problems involved in the application of the Maxwell stress equations for finite-element force calculations on magnetised ferrous cores. They also study the effect of the tangential magnetic field strength H_t on the accuracy of the force calculation. An effective H_t value is presented that is based on the H_t values predicted on either side of an iron/air boundary. The effects of iron saturation, mesh discretisation, and solver type on the accuracy of the tangential force calculation are considered

Keywords

ferrite devices; finite element analysis; magnetic cores; magnetic fields; Maxwell stress method; finite-element force calculations; iron saturation; iron/air boundary; magnetised ferrous cores; mesh discretisation; solver type; tangential magnetic field strength; Boundary conditions; Compressive stress; Electrical capacitance tomography; Iron; Magnetic cores; Magnetic fields; Magnetic flux; Magnetic hysteresis; Maxwell equations; Milling machines; Permeability; Rotating machines; Saturation magnetization; Tensile stress;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.43956

Filename

43956