Title :
A unique distribution of forces in permanent magnets using scalar and vector potential formulations
Author :
De Medeiros, Luiz H. ; Reyne, Gilbert ; Meunier, Gérard
Author_Institution :
Dept. de Engenharia Eletrica e Sistems de Potencia, Univ. Federal de Pernambuco, Recife, Brazil
fDate :
9/1/2000 12:00:00 AM
Abstract :
By the virtual work method, the electromagnetic force distribution can be calculated either by using the energy or the co-energy. In a rigid permanent magnet, the obtained force densities are extremely dependent on the expressions used to define the energy and the co-energy. It is demonstrated that the use of the appropriate expressions provides the same local force distribution using scalar (co-energy) or vector potential (energy) formulations
Keywords :
magnetic forces; permanent magnets; coenergy; electromagnetic force distribution; force densities; local force distribution; permanent magnets; scalar potential formulations; unique forces distribution; vector potential formulations; virtual work method; Couplings; Electromagnetic forces; Helium; Magnetic fields; Magnetic forces; Magnetization; Permanent magnets; Potential energy; Vibrations; Writing;
Journal_Title :
Magnetics, IEEE Transactions on
