Research on Energy Equation of Lubrication Model on Large-Scale Journal Bearing System

Jian Mei Wang; Qing Xue Huang; Jian Feng Kang; Yang Fan

doi:10.4028/www.scientific.net/AMR.145.139

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 145Research on Energy Equation of Lubrication Model...

Research on Energy Equation of Lubrication Model on Large-Scale Journal Bearing System

Abstract:

To prolong the service life of large-scale journal bearings, the major factors that have influences on bearing performances should be taken into account. By consideration of the variations of viscosity and density with pressure and temperature, a more thorough thermo-hydrodynamic lubrication model was established. With designation of variables with nondimensional parameters, a series of equations were nondimensionied, and the corresponding energy equations at different oil-film layers and boundaries were obtained respectively according to proper difference formats, and then solved by the integration of Finite Difference Method (FDM) with Boundary Element Method (BEM). Calculation results have proved that such complete mathematical model could provide great theoretical guide meaning to improve the lubrication performances and to prolong the service life of contact components of heavy journal bearings.

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Periodical:

Advanced Materials Research (Volume 145)

Pages:

139-144

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.145.139

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Online since:

October 2010

Authors:

Jian Mei Wang, Qing Xue Huang, Jian Feng Kang, Yang Fan

Keywords:

Energy Equation, Large-Scale Journal Bearing System, Lubrication Model

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References

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[50] 00.

[55] 00.

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[70] 00 0 90 180 270 360 Circumferential position (deg) Temperature (C) Exp Bem Fig. 3 Contrast of circumferential temperature of inner bearing surface at roll velocity 800rpm Max. error=1. 0 deg C.

[55] 00.

[60] 00.

[65] 00.

[70] 00.

[75] 00 0 90 180 270 360 Circumferential position (deg) Temperature (C) Exp Bem Fig. 4 Contrast of circumferential temperature of inner bearing surface at roll velocity 800rpm.

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