The Synchronous Instability of a Compressor Rotor due to Bearing Journal Differential Heating PUBLIC ACCESS

[+] Author Affiliations
F. M. de Jongh

Delaval-Stork v.o.f., Hengelo, The Netherlands

P. G. Morton

Consulting Mechanical Engineer, Wolverhampton, UK

Paper No. 94-GT-035, pp. V005T14A002; 13 pages
  • ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General
  • The Hague, Netherlands, June 13–16, 1994
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7887-3
  • Copyright © 1994 by ASME


The paper describes a synchronous vibration instability problem encountered on a centrifugal compressor with oil lubricated bearings. The problem was solved by modification of the compressor rotor, however the root cause was not completely understood at that time. A possible explanation was based on a theory which suggested differential heating of the bearing journals. It was decided to verify ibis theory by experiments. Therefore a test rotor was designed with identical rotor dynamic characteristics to those of the compressor rotor. In order to fill a gap in the published research on bearing thermohydrodynamics an experimental technique was devised to measure the surface temperature variations around one of the journals of this rotor. The dependence of significant temperature differentials across the journal upon its orbit was confirmed.

Copyright © 1994 by ASME
This article is only available in the PDF format.



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In