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Title: Passive magnetic bearing element with minimal power losses

Abstract

Systems employing passive magnetic bearing elements having minimal power losses are provided. Improved stabilizing elements are shown, employing periodic magnet arrays and inductively loaded circuits, but with improved characteristics compared to the elements disclosed in U.S. Patent No. 5,495,221 entitled "Dynamically Stable Magnetic Suspension/Bearing System." The improvements relate to increasing the magnitude of the force derivative, while at the same time reducing the power dissipated during the normal operation of the bearing system, to provide a passive bearing system that has virtually no losses under equilibrium conditions, that is, when the supported system is not subject to any accelerations except those of gravity.

Inventors:
 [1]
  1. (Walnut Creek, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
872032
Patent Number(s):
5847480
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
passive; magnetic; bearing; element; minimal; power; losses; systems; employing; elements; provided; improved; stabilizing; shown; periodic; magnet; arrays; inductively; loaded; circuits; characteristics; compared; disclosed; 495; 221; entitled; dynamically; stable; suspension; improvements; relate; increasing; magnitude; force; derivative; time; reducing; dissipated; normal; operation; provide; virtually; equilibrium; conditions; supported; subject; accelerations; gravity; bearing element; improved characteristics; passive magnetic; power loss; bearing elements; magnetic bearing; normal operation; magnet arrays; power dissipated; power losses; minimal power; systems employing; stable magnetic; passive bearing; systems employ; inductively loaded; periodic magnet; stabilizing element; dynamically stable; magnetic suspension; /310/

Citation Formats

Post, Richard F. Passive magnetic bearing element with minimal power losses. United States: N. p., 1998. Web.
Post, Richard F. Passive magnetic bearing element with minimal power losses. United States.
Post, Richard F. Thu . "Passive magnetic bearing element with minimal power losses". United States. https://www.osti.gov/servlets/purl/872032.
@article{osti_872032,
title = {Passive magnetic bearing element with minimal power losses},
author = {Post, Richard F.},
abstractNote = {Systems employing passive magnetic bearing elements having minimal power losses are provided. Improved stabilizing elements are shown, employing periodic magnet arrays and inductively loaded circuits, but with improved characteristics compared to the elements disclosed in U.S. Patent No. 5,495,221 entitled "Dynamically Stable Magnetic Suspension/Bearing System." The improvements relate to increasing the magnitude of the force derivative, while at the same time reducing the power dissipated during the normal operation of the bearing system, to provide a passive bearing system that has virtually no losses under equilibrium conditions, that is, when the supported system is not subject to any accelerations except those of gravity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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