A numerical model of surface temperature rise in elastohydrodynamic lubrication start up process is presented. The frictional heat flux is modeled as the product of lubricated contact pressure or solid contact pressure with its respective coefficient of friction. The temperature rise is calculated by numerically integrating the solution of point heat source moving over a half space. The constant speed restriction is removed to allow calculation of temperature rise on a surface with a variable speed. The FFT method is incorporated to speed up the temperature rise calculation. Surface temperature rise in elastohydrodynamic lubrication start up condition is calculated, for the case when speed increase from zero to desired speed occurs in one step and the case when speed is linearly increased to desired speed.
Analysis of EHL Circular Contact Start Up: Part II—Surface Temperature Rise Model and Results
Contributed by the Tribology Division for publication in the ASME JOURNAL OF TRIBOLOGY. Manuscript received by the Tribology Division February 3, 2000; revised manuscript received September 26, 2000. Associate Editor: A. A. Lubrecht.
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Zhao, J., Sadeghi, F., and Hoeprich, M. H. (September 26, 2000). "Analysis of EHL Circular Contact Start Up: Part II—Surface Temperature Rise Model and Results ." ASME. J. Tribol. January 2001; 123(1): 75–82. https://doi.org/10.1115/1.1332395
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