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Electromaglev ("active-maglev"): magnetic levitation of a superconducting disk with a DC field generated by electromagnets. 4. Theoretical and experimental results on supercurrent distributions in field-cooled YBCO disks.

Author(s) : TSUDA M., LEE H., NOGUCHI S., et al.

Type of article: Article

Summary

An electromagnetic analysis, based on a three-dimensional finite element technique applied to the current vector potential method, has been developed to determine the supercurrent distribution in a field-cooled (and hence trapped-flux) YBCO disk that levitates stably in a magnetic field generated by the magnet system. The supercurrent distribution thus determined was in turned used to compute trapped-flux-induced field profiles of the disk and predict a "levitation current" in the magnet system at which the disk, initially resting on a support plate, begins to levitate. Agreement between computed field profiles and levitation currents and those measured in the experiment was excellent.

Details

  • Original title: Electromaglev ("active-maglev"): magnetic levitation of a superconducting disk with a DC field generated by electromagnets. 4. Theoretical and experimental results on supercurrent distributions in field-cooled YBCO disks.
  • Record ID : 2001-2642
  • Languages: English
  • Source: Cryogenics - vol. 39 - n. 11
  • Publication date: 1999

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