COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 20 Issue 1
Table of contents
Finite element based expressions for Lorentz, reluctance and magnetostriction forces
Koen Delaere, Ward Heylen, Ronnie Belmans, Kay HameyerThe magnetic and mechanical finite element systems are combined into one magnetomechanical system. Investigating the coupling terms results in a finite element expression for the…
Magnetic forces and magnetostriction in ferromagnetic material
Lieven Vandevelde, Jan A.A. MelkebeekIn this paper a continuum description of deformable magnetized material including long‐range magnetic forces and magnetostriction is presented. Herein, magnetostriction and…
On solving connexity problems within modeling massive conductors
Afef Slama, Vincent Mazauric, Gérard Meunier, Yves MaréchalThis paper deals with the three‐dimensional modeling of massive conductors carrying a total imposed current and involving multiply connected regions. Both stationary motion and…
Fields, losses and forces due to moving current distributions coaxial with a cylindrical conductor
Ioan R. CiricAn exact mathematical solution has been obtained for the quasistationary electromagnetic field of a circular current loop coaxial with a conducting circular cylinder in uniform…
Calculation of ironless permanent magnet couplings using semi‐numerical magnetic pole theory method
J.F. Charpentier, G. LemarquandThis paper deals with a way of computation of the mechanical behavior of permanent magnet synchronous couplings. This method is based on the calculation of the forces between the…
Convergence improvement of the conjugate gradient iterative method for finite element simulations
H. De Gersem, K. HameyerThe slow convergence of the incomplete Cholesky preconditioned conjugate gradient (CG) method, applied to solve the system representing a magnetostatic finite element model, is…
Fixed‐point technique in identification of a shape of an inaccessible boundary between two media of different magnetic properties
Wiesllaw PetersonThe magnetic field was applied for identification of a shape of an inaccessible boundary between substances of different magnetic properties. Taking advantage of the conception of…
Connection boundary conditions with different types of finite elements applied to periodicity conditions and to the moving band
P. Dular, C. Geuzaine, M.V. Ferreira da Luz, N. Sadowski, J.P.A. BastosConnection boundary conditions are studied with the finite element method using different types of mixed finite elements, i.e. nodal, edge and facet elements of different shapes…
A finite element formulation for spectral problems in optical fibers
S. Guenneau, A. Nicolet, F. Zolla, C. Geuzaine, B. MeysThis paper is devoted to the presentation of a new finite element formulation for spectral problems arising in the determination of propagating modes in dielectric waveguides and…
Calculation of end‐turn leakage inductances of electrical machines using the edge element method
A. Demenko, L. Nowak, W. PietrowskiThe end‐turn leakage inductances of the armature winding of the permanent magnet motor have been calculated. In order to describe the magnetic field distribution the edge element…
Finite‐element modelization of slotted configurations by means of magnetically anisotropic smooth cores
M. Andriollo, G. Martinelli, A. Morini, A. TortellaThe paper presents a methodology in which the slotted regions of electrical machines are replaced by homogeneous regions with anisotropic magnetic permeability. The resulting FEM…
Numerical calculation of 3D eddy current fields in transverse flux machines with time stepping procedures
Rolf Blissenbach, Gerhard HennebergerPresents the calculation of the induced eddy currents in the conducting parts of transverse flux machines. Compared to conventional machines the transverse flux machine has a…
Inductor design aid employing genetic algorithms
Jean Fivaz, Willie A. CronjeRecognizing the need and the room for improvement in computer aided engineering (CAE), evolutionary programming and, more specifically, genetic algorithms are used together with…
Optimised design of actively shielded NMR magnets
V. Cavaliere, A. Formisano, R. MartoneMagnetic resonance is becoming a routine analysis for many applications. Present day devices include active shielding systems instead of passive ferromagnetic shields. This calls…
Determination of losses’ local distribution for transformer optimal designing
S. Clénet, J. Cros, F. Piriou, P. Viarouge, L.P. LefebvreThis paper presents the development of a procedure for the determination of the local magnetic loss distribution in transformer cores. An efficient identification method of the…
Thermal modelling of a car alternator with claw poles using 2D finite element software
S. Brisset, M. Hecquet, P. BrochetA car alternator with claw poles is typically a 3D device because its shape is not axi‐symmetrical nor XY‐symmetrical. A 3D finite element model can be useful to simulate the…
Impact of positioning and number of polarimetric measurements on the plasma reconstruction in fusion devices
P. Bettini, A. Formisano, R. Martone, F. Trevisan, A. StellaThe identification of plasma parameters from different sets of measurements is a key topic in the thermonuclear fusion research. Most of the information relevant to the plasma…
On the notion of anisotropy of constitutive laws: Some implications of the “Hodge implies metric” result
Alain BossavitWe argue that, in static situations (magnetostatics, for instance) all materials can be considered as locally isotropic, though not homogeneous. Genuine anisotropy appears only in…
A fast algorithm for calculating the critical state in superconductors
T.A. Coombs, A.M. Campbell, A. Murphy, M. EmmensA method is presented for calculating the critical state profiles in bulk superconductors. It can be used for asymmetric samples in non‐uniform fields and for transport currents…
Two‐dimensional finite element modelling of overlap joints in transformer cores
J. Gyselinck, J. MelkebeekThe influence of overlap joints in transformer cores on the local flux and eddy current distribution and on overall transformer characteristics is studied by means of…
Design and optimization of the magnetic circuit of a mobile nuclear magnetic resonance device for magnetic resonance imaging
Hartmut Popella, Gerhard HennebergerThe resolution of magnetic resonance imaging, commonly known as MRI, depends on the homogeneity and field strength of the used primary magnetic field \vecB0 over the volume of…
Multi‐terminal resistances optimal design using spline boundary elements and genetic algorithms
Calin Munteanu, Vasile Topa, Emil Simion, Gilbert De MeyThis paper proposes a method for multi‐terminal resistor optimal design based on a stochastic optimization algorithm coupled with a high accuracy boundary element method numerical…
Movement simulation in 3D eddy current transient problem
Lech NowakAn algorithm for the simultaneous solving of the equations of the 3D transient electromagnetic field and equations of electric circuits of an electromagnetic device containing…
ISSN:
0332-1649e-ISSN:
2054-5606ISSN-L:
0332-1649Online date, start – end:
1982Copyright Holder:
Emerald Publishing LimitedOpen Access:
hybridEditor:
- Prof Jan Sykulski