Abstract
This work aims to analyse the influence of the temperature and the viscosity variation of the lubricant fluid on the behavior of fixed-geometry thrust bearings. For this purpose, a numerical thermohydrodynamic (THD) model, based on the solution of the Generalized Reynolds’ Equation and of the Energy Equation, was developed, enabling the calculation of both pressure and temperature distribution along the fluid film. The influence of heat exchange in the radial direction is analysed by comparing the results of two different THD models: one considering heat exchanges in all directions; another considering heat exchanges only in two directions (circumferential direction and across the film). The results of load capacity of the bearing and its dynamic coefficients are compared to the obtained by a purely hydrodynamic (HD) model. The influence of speed and minimum film thickness on the behavior of the system is also evaluated.
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References
Dowson D (1962) A generalized Reynolds equation for fluid film lubrication. Int J Mech Sci 4(2):159–170
Huebner KH (1974) A three-dimensional thermohydrodynamic analysis of sector thrust bearings. ASLE Trans 17:62–73
Brockett TS, Barrett LE, Allaire PE (1996) Thermoelastohydrodynamic analysis of fixed geometry thrust bearings including runner deformation. Tribol Trans 39:555–562
Glavatskih SB, Fillon M, Larsson R (2002) The significance of oil thermal properties on the performance of a tilting-pad thrust bearing. J Tribol 124:377–385
Ahmed SA, Fillon M, Maspeyrot P (2010) Influence of pad and runner mechanical deformations on the performance of a hydrodynamic fixed geometry thrust bearing. In: Proceeding of the institution of mechanical engineers, vol. 224, part J: journal of engineering tribology 2010, pp 305–315
Dowson D, March C (1966) A thermohydrodynamic analysis of journal bearings. Proc Inst Mech Eng 181(3):117–126
Morton PG (2008) Unstable shaft vibrations arising from thermal effects due to oil shearing between stationary and rotating elements. In: IMechE, pp 383–391
Daniel GB, Alves DS, Cavalca KL, Cruz RF (2010) Temperature influence on the equivalent coefficients estimation for journal bearings. ASME 1:1–11
Acknowledgments
The authors would like to thank BorgWarner Brasil Ltda., CAPES and CNPq for supporting this research.
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© 2015 Springer International Publishing Switzerland
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Vieira, L.C., Watanabe, P.N., Cavalca, K.L. (2015). Analysis of the Influence of Fluid Temperature Variation on the Behavior of Turbocharger Lubricated Thrust Bearings. In: Pennacchi, P. (eds) Proceedings of the 9th IFToMM International Conference on Rotor Dynamics. Mechanisms and Machine Science, vol 21. Springer, Cham. https://doi.org/10.1007/978-3-319-06590-8_89
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DOI: https://doi.org/10.1007/978-3-319-06590-8_89
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