An Investigation Into the Effect of Side-Plate Clearance in an Uncentralized Squeeze-Film Damper PUBLIC ACCESS

[+] Author Affiliations
R. A. Cookson, L. J. Dainton

Cranfield Institute of Technology, Cranfield, Bedford, UK

Paper No. 83-GT-176, pp. V005T12A018; 7 pages
  • ASME 1983 International Gas Turbine Conference and Exhibit
  • Volume 5: Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; Process Industries
  • Phoenix, Arizona, USA, March 27–31, 1983
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7955-9
  • Copyright © 1983 by ASME


An experimental investigation has been carried out into the influence of side-plate flow restrictors on the performance of a squeeze-film damper bearing. The experimental rig used was a flexible rotor with a disc positioned mid-way between two squeeze-film damper bearings. One of the squeeze-film dampers was fitted with side-plates which could be adjusted and accurately located with respect to the squeeze-film damper journal.

It has been found that the influence of the side-plate clearance on the ability of the squeeze-film damper to reduce the amplitude of the central disc can be considerable if the side-plate clearance is less than the radial clearance. As the side-plate clearance reduces towards zero, the effectiveness of the squeeze-film damper diminishes until the amplitudes obtained are the same as those measured when the rolling-contact bearing is rigidly supported.

An interesting type of precessing elliptical orbit was discovered for conditions where the ‘jump’ phenomenon was operating.

Copyright © 1983 by ASME
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