NDLI: A preliminary foil gas bearing performance map

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A preliminary foil gas bearing performance map

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bruckner, Robert J. Howard, S. Adam DellaCorte, Christopher Radil, Kevin C.
Copyright Year	2006
Description	Recent breakthrough improvements in foil gas bearing load capacity, high temperature tribological coatings and computer based modeling have enabled the development of increasingly larger and more advanced Oil-Free Turbomachinery systems. Successful integration of foil gas bearings into turbomachinery requires a step wise approach that includes conceptual design and feasibility studies, bearing testing, and rotor testing prior to full scale system level demonstrations. Unfortunately, the current level of understanding of foil gas bearings and especially their tribological behavior is often insufficient to avoid developmental problems thereby hampering commercialization of new applications. In this paper, a new approach loosely based upon accepted hydrodynamic theory, is developed which results in a "Foil Gas Bearing Performance Map" to guide the integration process. This performance map, which resembles a Stribeck curve for bearing friction, is useful in describing bearing operating regimes, performance safety margins, the effects of load on performance and limiting factors for foil gas bearings.
File Size	845048
Page Count	22
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20060051824
Archival Resource Key	ark:/13960/t6353mn5m
Language	English
Publisher Date	2006-10-01
Access Restriction	Open
Subject Keyword	Mechanical Engineering Friction Turbomachinery Hydrodynamics Safety High Temperature Foil Bearings Loads Forces Tribology Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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