Many high speed turbochargers are known to operate with limit cycle vibration as a result of fluid-film instability. The goal of this research was to achieve a stable synchronous response with a minimum of self-excited nonsynchronous contribution. Those vibration components excited by the engine harmonics and exhaust pressure pulsations were not the target of this research. This paper will review the experimental results of the fixed geometry fluid-film bearing designs selected to replace the standard stock floating-ring design. In addition, the paper documents a novel radial tilting pad bearing concept that was designed to replace the fixed geometry bearings, with a minimum of modification to the stock bearing housing. A summary of the on-engine testing over the past seven years is documented in this paper.
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July 2014
Research-Article
Experimental Evaluation of Hydrodynamic Bearings for a High Speed Turbocharger
Robley G. Kirk
Robley G. Kirk
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Robley G. Kirk
Contributed by the Structures and Dynamics Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received January 8, 2014; final manuscript received January 9, 2014; published online February 18, 2014. Editor: David Wisler.
J. Eng. Gas Turbines Power. Jul 2014, 136(7): 072501 (9 pages)
Published Online: February 18, 2014
Article history
Received:
January 8, 2014
Revision Received:
January 9, 2014
Citation
Kirk, R. G. (February 18, 2014). "Experimental Evaluation of Hydrodynamic Bearings for a High Speed Turbocharger." ASME. J. Eng. Gas Turbines Power. July 2014; 136(7): 072501. https://doi.org/10.1115/1.4026535
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