A numerical model is developed to analyze the influence of thermal deformations on the performance of a radially grooved thrust washer. The analysis couples the flow phenomena (including cavitation) in the lubricant with the heat transfer in both the fluid and solid media, as well as with the thermally induced deformations in the solid parts. The finite element method (both two-dimensional and three-dimensional, with linear and quadratic shape functions) is used to solve the Reynolds equation for flow, the energy equation for temperature and the thermo-elasticity equations for deformations in the solid. Grid coupling is achieved by using a Newton-Raphson iteration. Realistic boundary conditions and geometry are used for the fluid and solid domains. The results show that, for the case of a properly shaped stator, the thermal deformations can lead to an increase in bearing performance.
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e-mail: bkucinsc@eng.utoledo.edu
e-mail: kdewitt@uoft02.utoledo.edu
e-mail: mircea@meca.omtr.pub.ro
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April 2004
Technical Papers
Thermoelastohydrodynamic (TEHD) Analysis of a Grooved Thrust Washer
Bogdan R. Kucinschi,
e-mail: bkucinsc@eng.utoledo.edu
Bogdan R. Kucinschi
University of Toledo, Mechanical, Industrial, and Manufacturing Engineering Dept., Toledo, OH 43606
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Kenneth J. DeWitt,
e-mail: kdewitt@uoft02.utoledo.edu
Kenneth J. DeWitt
University of Toledo, Mechanical, Industrial, and Manufacturing Engineering Dept., Toledo, OH 43606
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Mircea D. Pascovici
e-mail: mircea@meca.omtr.pub.ro
Mircea D. Pascovici
Politehnica University Bucharest, Machine Elements and Tribology Dept., Spl. Independentei 313, Bucharest 79590, Romania
Search for other works by this author on:
Bogdan R. Kucinschi
University of Toledo, Mechanical, Industrial, and Manufacturing Engineering Dept., Toledo, OH 43606
e-mail: bkucinsc@eng.utoledo.edu
Kenneth J. DeWitt
University of Toledo, Mechanical, Industrial, and Manufacturing Engineering Dept., Toledo, OH 43606
e-mail: kdewitt@uoft02.utoledo.edu
Mircea D. Pascovici
Politehnica University Bucharest, Machine Elements and Tribology Dept., Spl. Independentei 313, Bucharest 79590, Romania
e-mail: mircea@meca.omtr.pub.ro
Contributed by the Tribology Division for publication in the ASME JOURNAL OF TRIBOLOGY. Manuscript received by the Tribology Division February 13, 2003; revised manuscript received May 15, 2003. Associate Editor: Q. J. Wang.
J. Tribol. Apr 2004, 126(2): 267-274 (8 pages)
Published Online: April 19, 2004
Article history
Received:
February 13, 2003
Revised:
May 15, 2003
Online:
April 19, 2004
Citation
Kucinschi, B. R., DeWitt, K. J., and Pascovici, M. D. (April 19, 2004). "Thermoelastohydrodynamic (TEHD) Analysis of a Grooved Thrust Washer ." ASME. J. Tribol. April 2004; 126(2): 267–274. https://doi.org/10.1115/1.1645298
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