Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-28T23:56:29.333Z Has data issue: false hasContentIssue false
  • English
  • Français

Applications of Rare-Earth Permanent Magnet Structures to Electrical Machinery

Published online by Cambridge University Press:  21 February 2011

H.A. Leupold ,
A.S. Tilak ,
R.J. Marchand  and
D.A. Lagraffe
H.A. Leupold
Affiliation:
Army Research Laboratory Bartlett Hall, West Point, NY 10996, hh3416@exmail.usma.edu
A.S. Tilak
Affiliation:
Army Research Laboratory Bartlett Hall, West Point, NY 10996, hh3416@exmail.usma.edu
R.J. Marchand
Affiliation:
U.S. Military Academy Bartlett Hall, West Point, NY 10996, hh3416@exmail.usma.edu
D.A. Lagraffe
Affiliation:
U.S. Military Academy Bartlett Hall, West Point, NY 10996, hh3416@exmail.usma.edu
Get access

Abstract

A variety of promising permanent magnet structures based upon the magic cylinder and magic mangle concepts are investigated with regard to their suitability for application to electrical generators and motors. Such structures feature high magnetic flux densities in large volumes relative to their masses and bulks as well as minimal stray fields and net magnetic moments. Magic mangles also afford small moments of inertia of their rotating elements thereby resulting in improved rotational responsiveness. One computer calculation showed that a small conventional electric generator can be replaced by a magic mangle with 70% more flux amplitude but with only one half the mass and bulk.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 577: Symposium H – Advanced Hard and Soft Magnetic Materials , 1999 , 265
Copyright
Copyright © Materials Research Society 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Halbach, K., Nucl. Instr. and Meth. 187, p. 109 (1981).Google Scholar
2. Leupold, H.A. in Rare-Earth Permanent Magnets, edited by Coey, J.M.D. (Oxford Science Publications, Oxford University Press, Inc., New York, NY, 1996), pp. 381–429.Google Scholar
3. Leupold, H.A. and Potenziani, E. II, and Abele, M.G., J. Appl. Phys., 64, p. 5994 (1988).Google Scholar
4. Coey, J.M.D. and Cugat, O., 13th Int. Workshop on Rare-Earth Permanent Magnets and their Applications, Birmingham, UK, 11-14 September (1994), p. 41.Google Scholar
5. Gröuefeld, Martin, Rare-Earth Magnets and their Applications, Vol 2., Edited by Schultz, L. and Müiller, K.H. (Werkstoff-Information Gesellschaft, Frankfort, Germany) (1998), p. 807 Google Scholar