Abstract
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.
| Original language | English |
|---|---|
| Article number | 041501 |
| Journal | Journal of Tribology |
| Volume | 135 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2013 |
Keywords
- Fatigue life
- Mixed lubrication
- Non-Newtonian properties
- Roughness effect