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The Influence of Injection Pockets on the Performance of Tilting-Pad Thrust Bearings: Part I — Theory

[+] Author Affiliations
Niels Heinrichson, Ilmar Ferreira Santos

Technical University of Denmark, Lyngby, Denmark

Axel Fuerst

Alstom (Switzerland) Ltd., Birr, Switzerland

Paper No. ESDA2006-95285, pp. 883-891; 9 pages
doi:10.1115/ESDA2006-95285
From:
  • ASME 8th Biennial Conference on Engineering Systems Design and Analysis
  • Volume 3: Dynamic Systems and Controls, Symposium on Design and Analysis of Advanced Structures, and Tribology
  • Torino, Italy, July 4–7, 2006
  • ISBN: 0-7918-4250-9 | eISBN: 0-7918-3779-3
  • Copyright © 2006 by ASME

abstract

This is Part I of a two-part series of papers describing the effects of high pressure injection pockets on the operating conditions of tilting-pad thrust bearings. A numerical model based on the Reynolds equation is developed extending the three dimensional thermo-elasto-hydrodynamic (TEHD) analysis of tilting-pad thrust bearings to include the effects of high pressure injection and recesses in the bearing pad. The model is applied to the analysis of an existing bearing of large dimensions and the influence of the pocket is analyzed. It is shown that a shallow pocket positively influences the performance of the bearing as it has characteristics similar to those of a parallel step bearing.

Copyright © 2006 by ASME
Topics: Thrust bearings

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