Modelling and simulation of electrical analogous for permanent magnet materials
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Expressions to simulate the intrinsic demagnetizing curve of permanent magnets are derived from the
classical electrical analogy of a 2RLC circuit as an equivalent to a magnet under demagnetization in a
closed magnetic circuit. Comparisons between experimental and theoretical intrinsicMxHcurves
were carried out for hard magnetic materials, and the possibility of using this analogous circuit with
two components has also been investigated. The demagnetization curves of permanent sintered
magnets have been simulated with time domain analytical expressions obtained using an electric
equivalent circuit analogous to a closed magnetic circuit. This has been carried out for magnets
measured at room temperature and at 373 K. Equivalent electric parameters influenced the various
regions of the demagnetization curve. It has also been shown that it was possible to simulate the
demagnetization curve of rare earth magnets and also other types of permanent magnets. The Stoner-
Wohlfarth model theoretical curves have also been used as a comparison. At last, the electrical
analogous parameters have been systematically varied in order to correlate them to the magnetic
properties.
Como referenciar
FERNANDEZ, ANTONIO P.R.; PERIGO, ELIO A.; FARIA JUNIOR, RUBENS N. de. Modelling and simulation of electrical analogous for permanent magnet materials. Physica Scripta, v. 98, n. 11, p. 1-18, 2023. DOI: 10.1088/1402-4896/ad0079. Disponível em: http://repositorio.ipen.br/handle/123456789/34384. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.