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Mesures d'échauffement d'aimants supraconducteurs soumis à des vibrations d'origine électromagnétique dans le cas du train à lévitation magnétique.

Heat load tests of superconducting magnets vibrated electromagnetically for the maglev train.

Auteurs : OHMORI J., NAKAO H., YAMASHITA T., SANADA Y., SHUDOU M., KAWAI M., FUJITA M., TERAI M., MIURA A.

Type d'article : Article

Résumé

Superconducting magnets on maglev trains vibrate due to harmonic ripples of electromagnetic flux generated by ground coils. Heat load caused by vibration in the magnet amounted to several tens of watts in the electromagnetic vibration test. This was mainly because alternating-current loss was induced in the helium vessel housing the superconducting coil. The heat load was tested using electromagnetic flux ripples for a superconducting magnet model of one coil which corresponds to 1/4 of an actual magnet. The flux ripples simulated the 6th harmonic of the actual ground levitation coil. Some ideas to reduce the heat load were tried for the magnet model.

Détails

  • Titre original : Heat load tests of superconducting magnets vibrated electromagnetically for the maglev train.
  • Identifiant de la fiche : 1998-1507
  • Langues : Anglais
  • Source : Cryogenics - vol. 37 - n. 8
  • Date d'édition : 08/1997

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