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Squeeze-Film Damper Technology: Part 2 — Experimental Verification Using a Controlled-Orbit Test Rig FREE

[+] Author Affiliations
J. A. Tecza, J. C. Giordano, E. S. Zorzi

Mechanical Technology Incorporated, Latham, NY

S. K. Drake

Aero Propulsion Laboratory, Wright-Patterson AFB, Dayton, OH

Paper No. 83-GT-248, pp. V005T12A027; 8 pages
doi:10.1115/83-GT-248
From:
  • 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

abstract

This paper is a companion to “Squeeze-Film Damper Technology, Part 1,” which covered an analytic approach and computer program for squeeze-film damper performance prediction. This paper describes a series of damper tests in which a controlled-orbit rig is used to explore squeeze-film damper behavior for representative gas turbine damper geometries and to verify and calibrate the damper analysis program. Test results for both locally end-sealed (hole fed and drained) and globally sealed (groove fed and drained) dampers are presented, along with performance predictions for those test points made using the software analysis. In particular, the effects of feeder hole flow resistance, feed groove geometry, and fluid inertia on damper performance are discussed and illustrated.

Copyright © 1983 by ASME
Topics: Dampers
This article is only available in the PDF format.

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