The eddy currents which are induced in the track of a magnetically suspended and guided vehicle by its translational motion strongly affect the power consumption. They effect on the one hand a diminution of the levitation force and, on the other hand, a drag force which requires an increased capability of the propulsion system. This makes a knowledge of the parameter dependence of these effects necessary. For this purpose the eddy current effects of a test magnet and a given track material are measured and the velocity dependent permeability leading to a good agreement with these measurements is worked out. Universality of the permeability curve mu (v) is tested by variations of magnet and track geometries within the range of experimental setups. In the case of satisfactory agreement, the permeability curve can be used to extrapolate to the geometries of full scale vehicles.

Media Info

  • Features: References;
  • Pagination: p. 104-107

Subject/Index Terms

Filing Info

  • Accession Number: 00167543
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: No. 142 Proceeding
  • Files: TRIS
  • Created Date: Dec 27 1977 12:00AM