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Design, Fabrication and Performance of Open Source Generation I and II Compliant Hydrodynamic Gas Foil BearingsFoil gas bearings are self-acting hydrodynamic bearings made from sheet metal foils comprised of at least two layers. The innermost top foil layer traps a gas pressure film that supports a load while a layer or layers underneath provide an elastic foundation. Foil bearings are used in many lightly loaded, high-speed turbo-machines such as compressors used for aircraft pressurization, and small micro-turbines. Foil gas bearings provide a means to eliminate the oil system leading to reduced weight and enhanced temperature capability. The general lack of familiarity of the foil bearing design and manufacturing process has hindered their widespread dissemination. This paper reviews the publicly available literature to demonstrate the design, fabrication and performance testing of both first and second generation bump style foil bearings. It is anticipated that this paper may serve as an effective starting point for new development activities employing foil bearing technology.
Document ID
20070022433
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
DellaCorte, Christopher
(NASA Glenn Research Center Cleveland, OH, United States)
Radil, Kevin C.
(Army Research Lab. Cleveland, OH, United States)
Bruckner, Robert J.
(NASA Glenn Research Center Cleveland, OH, United States)
Howard, S. Adam
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 23, 2013
Publication Date
April 18, 2007
Subject Category
Mechanical Engineering
Report/Patent Number
ARL-TR-4102
E-15879
NASA/TM-2007-214691
Meeting Information
Meeting: ASME/STEL International Joint Tribology Conference
Location: San Diego, CA
Country: United States
Start Date: October 22, 2007
End Date: October 24, 2007
Sponsors: Society of Tribologists and Lubrication Engineers, American Society of Mechanical Engineers
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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