Investigation on demagnetization of residual magnetization in architectural components using 3-D magnetic field analysis

Author

Yamazaki, Keita ; Kato, Kazuo ; Hirosato, Shigetaka ; Muramatsu, Kazuhiro ; Shimizu, Tsuyuki ; Sato, Tomoya ; Haga, Akira ; Fujiwara, Koji

Author_Institution

Res. & Dev. Inst., Takenaka Corp., Chiba, Japan

Volume

41

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

1976

Lastpage

1979

Abstract

In order to investigate an effective method for removing the residual magnetization in the steel structure of a building by a demagnetizing coil, a method for estimating the distribution of residual magnetization by means of a three-dimensional nonlinear eddy-current analysis was proposed. The tendency of the result obtained from the proposed method was in good agreement with the experimental result. Moreover, it was found that the demagnetizing coil should be set perpendicular to the steel structure.

Keywords

demagnetisation; eddy currents; finite element analysis; magnetisation; steel; structural engineering; 3D magnetic field analysis; architectural components; demagnetization; demagnetizing coil; effective method; hysteresis curve; nonlinear eddy-current analysis; residual magnetization; steel bar; steel frame; steel structure; Coils; Demagnetization; Floors; Magnetic analysis; Magnetic fields; Magnetic flux; Magnetization; Magnetostatic waves; Steel; Welding; 3-D magnetic field analysis; Demagnetization; hysteresis curve; residual magnetization; steel bar; steel frame;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.846287

Filename

1431013