Journal ArticleDOI
The calculation of magnetic circuits with permanent magnets by digital computers
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TLDR
In this paper, numerical methods to calculate two-dimensional static magnetic fields in devices with air, iron, currents, and permanent magnets are described and applied to loudspeaker magnets and dc motors with permanent excitation.Abstract:
Numerical methods to calculate two- or three-dimensional static magnetic fields in devices with air, iron, currents, and permanent magnets are described and applied to loudspeaker magnets and dc motors with permanent excitation.read more
Citations
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Book ChapterDOI
Finite Element Methods for the Solution of 3D Eddy Current Problems
TL;DR: In this article, the authors present a critical survey on the approach to the solution of the general three-dimensional eddy current problem, which originally started from the necessity of studying the transient electromagnetic phenomena in tokamaks.
Journal ArticleDOI
Three-dimensional finite element solution of permanent magnet machines
P. Campbell,M. Chari,J. D'Angelo +2 more
TL;DR: In this article, the authors presented a model for a permanent magnet material that leads to a simplified energy functional and verified that this approach is appropriate for an axial-field electrical machine that has SmCo 5 magnets which have linear characteristics.
Journal ArticleDOI
Permanent magnet modeling for use in vector potential finite element field analysis in electrical machinery
TL;DR: In this paper, a method for simulation of permanent magnet effects on the magnetic field in electrical machines is given, which is suited for use with magnetic vector potential numerical models for the analysis of magnetic fields.
Journal ArticleDOI
Integral solution of nonlinear magnetostatic field problems
Aldo Canova,Maurizio Repetto +1 more
TL;DR: In this article, an integral equation on magnetized volume, expressed in terms of magnetic field H or magnetization M, is discretized by means of edge elements on a tetrahedral mesh and solved numerically by using a collocation method.
Journal ArticleDOI
Computation of the magnetic field of permanent magnets in iron cores
TL;DR: In this article, a method for computing the magnetic field of permanent magnets in the presence of iron cores is described, which allows for nonuniform magnetisation in the magnet and saturation in the iron if required.
References
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Journal ArticleDOI
Finite Element Solution of Saturable Magnetic Field Problems
TL;DR: In this article, the authors report on initial numerical experiments for the solution of the nonlinear magnetic field problem by the method of finite elements, a new technique that permits great freedom in prescribing boundary shapes and does not suffer from the deceleration of convergence that plagues the relaxation methods.
Journal ArticleDOI
Representation of the Magnetization Characteristic of DC Machines for Computer Use
TL;DR: A computer program to accomplish the calculation of flux densities in dc machines using digital computers in which the magnetization curve is subdivided into a large number of sections using a method of linear interpolation.
Journal ArticleDOI
Representation of magnetisation curves over extensive range by rational-fraction approximations
TL;DR: In this paper, a simple mathematical expression which enables representation of all types of magnetization curves over a very wide range is presented for problems which require use of the B/H curve many times, since calculations using it require only a few operations of the basic arithmetic adding, multiplying and dividing.
Journal ArticleDOI
Magnetic Fields in Nonlinear Salient Pole Alternators
TL;DR: In this article, the flux densities under load are established in the cross section of salient pole alternators of low pole numbers, where a combination of rectangular and polar grids is used to follow the contours of the alternator.
Journal ArticleDOI
Ein numerisches Verfahren zur Berechnung magnetischer Felder, insbesondere in Anordnungen mit Permanentmagneten
TL;DR: In this paper, a numerisches Verfahren zur Berechnung zweidimensionaler, bzw. rotationssymmetrischer magnetfelder in Anordnungen with Eisenteilgebieten, Luftraumen, stromdurchflossenen Wicklungen and Permanentmagneten mittels digitaler Rechenmaschinen is presented.
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