Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Induction bearings
KTH, Superseded Departments, Electrical Systems.
2003 (English)Licentiate thesis, monograph (Other scientific)
Abstract [en]

A self stabilizing homopolar induction bearing withintegrated touch down bearings has been developed forhigh-speed applications like flywheels, small gas turbines andcompact vacuum cleaners.

Stability is achieved without any control electronics thanksto stabilizing eddy currents induced by permanent magnets. Eddycurrent losses are reduced to a minimum using a homopolardesign with ring magnets instead of multipole or halbacharrays.

The bearing currents and forces are simulated using steadystate 3D-FEM analysis, which is enabled thanks to theimplemented Minkowskij transform. From these results ananalytical model has been developed, and the results arecompared.

Efforts are made to develop a qualitative understanding ofthe bearing physics. Results are converted into usefulrotordynamic data that is easily understood by machineengineers.

Finally some experiences from the first experimental testruns at 90.000 RPM are discussed.

Keywords:Magnetic bearing, eddy current, inductionbearing, eddy current bearing, high speed, homopolar, gasturbine, flywheel

Place, publisher, year, edition, pages
Stockholm: Elektrotekniska system , 2003. , viii, 115 p.
Series
Trita-ETS, ISSN 1650-674X ; 2003:3
Identifiers
URN: urn:nbn:se:kth:diva-1558OAI: oai:DiVA.org:kth-1558DiVA: diva2:7476
Note
NR 20140805Available from: 2003-03-19 Created: 2003-03-19Bibliographically approved

Open Access in DiVA

fulltext(4214 kB)2403 downloads
File information
File name FULLTEXT01.pdfFile size 4214 kBChecksum MD5
dcc31aab8f6921d663400933f7021140752f102eb8d0c7b36a70bdf926dc2be15a2261d6
Type fulltextMimetype application/pdf

By organisation
Electrical Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 2403 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 490 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf