DocumentCode
1240254
Title
Axial and journal bearings for superconducting flywheel systems
Author
Rastogi, Amit ; Alonso, David Ruiz ; Coombs, T.A. ; Campbell, A.M.
Author_Institution
Dept. of Eng., Univ. of Cambridge, UK
Volume
13
Issue
2
fYear
2003
fDate
6/1/2003 12:00:00 AM
Firstpage
2267
Lastpage
2270
Abstract
Axial and journal bearings have been investigated for use in superconducting flywheel systems. Our test rig comprises of an Evershed type magnetic bearing used to levitate a 35 kg rotor. The stabilizing forces are provided by superconducting axial and journal bearings. In this study we focus on the vertical stiffness measurements and explore the use of journal bearings. The journal bearing consists of radial magnets with alternating polarities. Our results indicate that this type of journal bearing can effectively stabilize the rotor. Spin-down test shows a linear behavior.
Keywords
flywheels; magnetic bearings; rotors; superconducting devices; 35 kg; Evershed magnetic bearing; axial bearing; journal bearing; magnetic levitation; rotor stability; spin-down test; superconducting flywheel energy storage system; vertical stiffness; Energy storage; Flywheels; Magnetic fields; Magnetic levitation; Rotors; Stability; Superconducting devices; Superconducting magnets; Testing; Yttrium barium copper oxide;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2003.813062
Filename
1212072
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