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Experimental Evaluation of Foil Bearing Performance: Steady-State and Dynamic Results

[+] Author Affiliations
M. J. Conlon, A. Dadouche, W. M. Dmochowski, R. Payette, J.-P. Bédard, B. Liko

National Research Council Canada, Ottawa, ON, Canada

Paper No. GT2009-60186, pp. 981-992; 12 pages
doi:10.1115/GT2009-60186
From:
  • ASME Turbo Expo 2009: Power for Land, Sea, and Air
  • Volume 6: Structures and Dynamics, Parts A and B
  • Orlando, Florida, USA, June 8–12, 2009
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4887-6 | eISBN: 978-0-7918-3849-5
  • Copyright © 2009 by National Research Council of Canada

abstract

An experimental facility dedicated to measuring both the steady-state and dynamic properties of foil bearings, under a variety of operating conditions, has been designed and commissioned. The bearing under test is placed at the midspan of a horizontal, simply-supported, stepped shaft which rotates at up to 60 krpm. Static and dynamic loads of up to 3500 N and 450 N (respectively) can be applied by means of a pneumatic cylinder and two electrodynamic shakers. This paper outlines the test procedures and data analysis methods pertaining to the operation of the high-speed, oil-free bearing test rig, and presents steady-state and dynamic results for a first-generation foil bearing. The test bearing, which was fabricated in-house, is 0.07 m diameter and has an aspect ratio of 1; bearing manufacturing details are provided.

Copyright © 2009 by National Research Council of Canada

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