Effects of magnetic properties of steel on flux response

Author

Ohdachi, Y. ; Inaguma, Y. ; Iwama, N. ; Watari, A. ; Fujii, H. ; Honkura, Y.

Author_Institution

Toyota Central Res. & Dev. Labs. Inc., Aichi, Japan

Volume

26

Issue

2

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

517

Lastpage

519

Abstract

It has been shown that the relative magnetic permeability μs and the electric resistivity ρ of magnetic steel have serious effects on the flux response of electromagnetic actuators used in automobiles. These effects are quantitatively examined by a magnetic field calculation based on the finite-element method. Also, some criteria for selecting optimum magnetic steel are proposed in view of the minimum allowable μs and ρ. It is shown that when an electromagnetic actuator is used in a linear range both μs and ρ must be large. The minimum allowable μs and ρ are 1000 and 72 μΩ-cm, respectively. When the actuator is used in a nonlinear range, B₂₀ must be large enough to broaden the linear range

Keywords

automobiles; electric actuators; ferromagnetic properties of substances; finite element analysis; magnetic flux; magnetic permeability; steel; automobiles; electric resistivity; electromagnetic actuators; finite-element method; flux response; magnetic field calculation; magnetic steel; relative magnetic permeability; Actuators; Conductivity; Eddy currents; Electric resistance; Magnetic analysis; Magnetic flux; Magnetic materials; Magnetic properties; Permeability; Steel;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.106367

Filename

106367