Influence of the particular algorithm employed to evaluate the direct contact in lubricated contacts

Employer
unimore
Location
Italy
Posted
October 09 2017
Position Type
Full Time
Organization Type
Academia

The activity aims at evaluating the influence of the particular algorithm employed to describe the direct contact in lubricated contacts on the lubrication behaviour of the mating surfaces. In particular, two different algorithms will be investigated:

a) Greenwood-Tripp method: is the standard method usually employed in lubrication software. It is based on the definition of a non-linear relationship linking the distance between the mating surfaces and the direct contact pressure;

b) Complementarity method: it is an alternative method based on the complementarity relationship between the two variables governing the direct contact problem (film thickness and direct contact pressure).

The two different algorithms will be implemented in an self-developed Fortran code. Further comparisons will be made adopting the commercial software AVL Excite.



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