This work is aimed at a theoretical study of the dynamic behavior of a rotor-tilting pad journal bearing (TPJB) system under different lubrication regimes, namely, thermohydrodynamic (THD), elastohydrodynamic (EHD), and hybrid lubrication regime. The rotor modeled corresponds to an industrial compressor. Special emphasis is put on analyzing the stability map of the rotor when the different lubrication regimes are included into the TPJB modeling. Results show that, for the studied rotor, the inclusion of a THD model is more relevant when compared to an EHD model, as it implies a reduction on the instability onset speed for the rotor. Also, results show the feasibility of extending the stable operating range of the rotor by implementing a hybrid lubrication regime.
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e-mail: acer@mek.dtu.dk
e-mail: ifs@mek.dtu.dk
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February 2012
Research Papers
Stability Analysis of an Industrial Gas Compressor Supported by Tilting-Pad Bearings Under Different Lubrication Regimes
Alejandro Cerda Varela,
Alejandro Cerda Varela
Department of Mechanical Engineering,
e-mail: acer@mek.dtu.dk
Technical University of Denmark
, 2800 Kgs. Lyngby, Denmark
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Ilmar Ferreira Santos
Ilmar Ferreira Santos
Department of Mechanical Engineering,
e-mail: ifs@mek.dtu.dk
Technical University of Denmark
, 2800 Kgs. Lyngby, Denmark
Search for other works by this author on:
Alejandro Cerda Varela
Department of Mechanical Engineering,
Technical University of Denmark
, 2800 Kgs. Lyngby, Denmark
e-mail: acer@mek.dtu.dk
Ilmar Ferreira Santos
Department of Mechanical Engineering,
Technical University of Denmark
, 2800 Kgs. Lyngby, Denmark
e-mail: ifs@mek.dtu.dk
J. Eng. Gas Turbines Power. Feb 2012, 134(2): 022504 (11 pages)
Published Online: December 20, 2011
Article history
Received:
April 27, 2011
Revised:
May 3, 2011
Online:
December 20, 2011
Published:
December 20, 2011
Citation
Cerda Varela, A., and Ferreira Santos, I. (December 20, 2011). "Stability Analysis of an Industrial Gas Compressor Supported by Tilting-Pad Bearings Under Different Lubrication Regimes." ASME. J. Eng. Gas Turbines Power. February 2012; 134(2): 022504. https://doi.org/10.1115/1.4004214
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