The lubrication characteristics and fatigue life are numerically analyzed under full film and mixed lubrication regimes, in which the three-dimensional sinusoidal surfaces with changeable wavelengths in x and y directions are used, the geometry changes of the contact areas are described by the various ellipticity, and the non-Newtonian flow of lubricant is described by the sinh-law rheology model. The results show that the influences of characteristic shear stress, wavelength ratio, and ellipticity on lubrication characteristics and fatigue life are remarkable. The effect of surface topography on lubrication characteristics has a close relationship with speed. Increasing the ellipticity and decreasing wavelength ratio and characteristic shear stress can prolong the fatigue life.
A Parametric Study on Fatigue Life for Mixed Elastohydrodynamic Lubrication Point Contacts
Contributed by the Tribology Division of ASME for publication in the Journal of Tribology. Manuscript received November 20, 2012; final manuscript received April 24, 2013; published online June 6, 2013. Assoc. Editor: Dong Zhu.
- Views Icon Views
- Share Icon Share
- Search Site
Yan, X., Wang, X., and Zhang, Y. (June 6, 2013). "A Parametric Study on Fatigue Life for Mixed Elastohydrodynamic Lubrication Point Contacts." ASME. J. Tribol. October 2013; 135(4): 041501. https://doi.org/10.1115/1.4024303
Download citation file: