Apart from complex numerical models to predict the tribological behavior of elastohydrodynamically lubricated contacts, non-dimensional similarity groups and analytically solvable proximity equations can be used to estimate ...

It is well accepted that the tribological performance of surfaces can be directly correlated with their energy efficiency and lifetime. Consequently, surface patterning has gained great attention to manipulate friction and ...

The search for better performance in internal combustion engines and machines which use hydrodynamic journal bearings has motivated recent studies in lubrication field, with the application of computational fluid dynamics. ...

There are more than 20 billion lubricated bearings in the world. It is estimated that 80% of the premature failure of these bearings is due to lubrication problems, in particular, the inadequate choice of a lubricant. Such ...

The tibial component of current knee prostheses made of Ultra Hig Molecular Weigth Polyethylene (UHMWPE) has a high degree of wear that causes knee inflammation, prosthesis loosening and and subsequent replacement in no ...

Currently, vegetable oils have been studied for bio-lubricants base that fits the new environmental standards. Since, in a world full of finite natural resources, mineral oils bring consequences to the environment due to ...

Purpose: The paper aims to investigate the possibilities to control friction in lubricated systems by surface patterning, making use of a multi-scale approach. Surface patterns inside the tribological contact zone tend to ...