Title :
Spurious modes of electromagnetic vector potential finite elements
Author :
MacNeal, B.E. ; MacNeal, R.H. ; Coppolino, R.N.
Author_Institution :
MacNeal-Schwendler Corp., Los Angeles, CA, USA
fDate :
9/1/1989 12:00:00 AM
Abstract :
The mode spectra of individual electromagnetic vector potential finite elements are studied in detail. Theoretical spectra are deduced from the general properties of vector fields and the specific shape functions used in particular elements. Results are compared with spectra calculated using standard isoparametric tetrahedron and hexahedron elements. It is shown that spurious shear modes are present in addition to the more familiar spurious divergence and translation modes
Keywords :
electromagnetic field theory; finite element analysis; 3D field calculations; electromagnetic vector potential finite elements; hexahedron elements; isoparametric tetrahedron elements; mode spectra; specific shape functions; spurious divergence modes; spurious modes; spurious shear modes; spurious translation modes; vector fields; Eddy currents; Electrodynamics; Electromagnetic fields; Electromagnetic waveguides; Finite element methods; Magnets; Maxwell equations; Partial differential equations; Resonance; Shape control;
Journal_Title :
Magnetics, IEEE Transactions on
