| A Preliminary Foil Gas Bearing Performance Map Contributor(s): Dellacorte, Christopher (Author), Nasa Technical Reports Server (Ntrs) (Created by), Et Al (Created by) |
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ISBN: 128922479X ISBN-13: 9781289224790 Publisher: Bibliogov OUR PRICE: $14.01 Product Type: Paperback Published: July 2013 |
| Additional Information |
| BISAC Categories: - Political Science |
| Physical Information: 0.05" H x 7.44" W x 9.69" (0.15 lbs) 26 pages |
| Descriptions, Reviews, Etc. |
| Publisher 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. |