A passive bearing system using superconducting magnetsA passive radial bearing concept is presented using superconducting magnets which can generate a bearing pressure as high as 360 N/sq cm, comparable to a conventional active bearing system. The system consists of a number of solenoidal superconducting coils of alternating current direction. These coils are stacked axially over the bearing length and connected in series. The currents in stator and rotor coils are in the opposite directions, generating repulsive forces. This system, in comparison with an active system, has the advantage of much smaller power dissipation in the coils since the coil currents are mostly dc currents. The cooling for the superconducting coils is therefore simpler, and the coils are more stable. An optimization study seeking the maximum bearing pressure was conducted. Details of the design, pressure calculations, and results are presented.
Document ID
19910053498
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Huang, X. (Wisconsin Univ. Madison, WI, United States)
Eyssa, Y. M. (Wisconsin, University Madison, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
Mechanical Engineering
Meeting Information
Meeting: Intersociety Energy Conversion Engineering Conference