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http://bura.brunel.ac.uk/handle/2438/5642
Title: | Running characteristics of aerodynamic bearing with self-lifting capability at low rotational speed |
Authors: | Stolarski, TA |
Issue Date: | 2011 |
Publisher: | Hindawi Publishing Corporation |
Citation: | Advances in Tribology, Artn: 973740, Feb 2011 |
Abstract: | An aerodynamic journal bearing that is capable of self-generating squeeze-film pressure is presented and its dynamic characteristics investigated numerically and experimentally. A numerical method based on a time-marching static model was applied to assess the orbit trajectory path of the rotor upon a perturbation. Experimental results were obtained to validate the effect of the self-generated squeeze-film pressure on the stability of the rotor. Analyzing the Fast Fourier Transform (FFT) responses of the rotor orbits enabled identification of self-excited whirling instabilities. Both numerical and experimental results showed that increasing the squeeze-film effect of the bearing could raise the threshold speed of instability. |
Description: | This article has been made available through the Brunel Open Access Publishing Fund - Copyright @ 2011 Tadeusz Adam Stolarski. |
URI: | http://www.hindawi.com/journals/at/2011/973740/ http://bura.brunel.ac.uk/handle/2438/5642 |
DOI: | http://dx.doi.org/10.1155/2011/973740 |
ISSN: | 1687-5915 |
Appears in Collections: | Mathematical Physics Mechanical and Aerospace Engineering Brunel OA Publishing Fund Dept of Mechanical and Aerospace Engineering Research Papers |
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Fulltext.pdf | 2.71 MB | Adobe PDF | View/Open |
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