DocumentCode
952344
Title
Limitations of levitation by iron-cored electromagnets
Author
Atherton, David L. ; Eastham, A.R.
Author_Institution
Queen´´s University, Kingston, Ontario, Canada
Volume
10
Issue
3
fYear
1974
fDate
9/1/1974 12:00:00 AM
Firstpage
410
Lastpage
412
Abstract
We present simple "best-case" calculations of power/lift and lift/weight ratios for iron-cored electromagnetic levitation systems using either the attraction between controlled electromagnets and ferromagnetic guideway members or the repulsion between a.c. electromagnets and guideway conductors. Although power/lift ratios are low, the practical engineering restrictions of conductor current density, iron flux density and magnet size result in poor lift/ weight ratios and limit operation to low suspension heights.
Keywords
Ground transportation; Magnetic levitation; Conducting materials; Conductors; Current density; Electromagnets; Iron; Magnetic flux; Magnetic levitation; Magnetic materials; Superconducting magnets; Vehicles;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1974.1058437
Filename
1058437
Link To Document