Title :
Numerical Analysis and Experimental Measurements of Magnetic Bearings Based on
Hollow Cylinders
Author :
Morandi, A. ; Perini, E. ; Giunchi, G. ; Fabbri, M.
Author_Institution :
Dept. of Electr. Eng., Univ. of Bologna, Bologna, Italy
fDate :
6/1/2011 12:00:00 AM
Abstract :
The levitation performance of a magnetic bearing, based on 48 mm inner diameter, 3 mm thickness and 80 mm height, MgB2 tube is experimentally investigated. A numerical model is developed and validated against the experimental results in order to compare different rotor geometries and to investigate the temperature behavior of the system. Investigation of the effect of the hysteresis on practical superconducting bearings is also carried out by means of the model.
Keywords :
magnesium compounds; magnetic bearings; magnetic levitation; superconducting devices; experimental measurements; hollow cylinders; levitation performance; magnetic bearings; numerical analysis; rotor geometry; superconducting bearings; temperature behavior; Force; Magnetic circuits; Magnetic levitation; Rotors; Soft magnetic materials; Superconducting magnets; ${rm MgB}_{2}$ ; Magnetic levitation; numerical modeling; superconducting bearings;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2093596