Study effect of the back irons in passive magnetic bearings with alternating radially magnetized rings by using 2D analytical method

• Reza Safaeian ^[1] ; Hossein Heydari ^[1]
  1. [1] Iran University of Science and Technology

     Iran University of Science and Technology

     Irán

     
• Localización: Compel: International journal for computation and mathematics in electrical and electronic engineering, ISSN 0332-1649, Vol. 38, Nº 6, 2019, págs. 250-263
• Idioma: inglés
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• Resumen

  • Permanent magnet passive magnetic bearings (PMBs) are used for suspension of rotating shafts in one direction. PMBs with alternating radially magnetized rings having back iron is one of the most optimum configurations among all configurations of PMBs. This paper aims to investigate the effect of the conductivity and permeability of these back irons on the stiffness and damping of the configuration.