Title :
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
fDate :
5/1/2005 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.846287
