Title :
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
fDate :
1/1/1988 12:00:00 AM
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 Ht on the accuracy of the force calculation. An effective Ht value is presented that is based on the Ht 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;
Journal_Title :
Magnetics, IEEE Transactions on
