This paper aims to assess the hydrodynamic lubrication of two opposing surfaces with identical pores having a semicircular profile. The surfaces are treated with more than one…
Abstract
Purpose
This paper aims to assess the hydrodynamic lubrication of two opposing surfaces with identical pores having a semicircular profile. The surfaces are treated with more than one pore that allows clarification of whether there exists interaction between the pores.
Design/methodology/approach
A transient, spatial, one-dimensional model of surfaces with regular pores was developed and applied in the context of fluid lubrication. MATLAB software has been used.
Findings
Calculations show that a lubricating film between two surfaces with pores provides better hydrodynamic conditions in comparison to that on one surface with pores. It was also shown that the pores of one surface act as separate objects and can take into account only the interaction between the pores of the opposite surfaces. In addition, it was found that there are optimum values of the pore radii, gap and pore cell dimensions at which the bearing capacity of the film is maximal.
Practical implications
The computer program used for the pore parameter calculations provided the optimal lubrication.
Originality/value
This is the first study of the lubricating film hydrodynamic behavior of two opposite surfaces with pores having a semicircular profile.
Details
Keywords
This paper aims to assess the behavior of hydrodynamic lubrication between surfaces with pores of different sizes. The profiles of the opposite surfaces are treated by lines with…
Abstract
Purpose
This paper aims to assess the behavior of hydrodynamic lubrication between surfaces with pores of different sizes. The profiles of the opposite surfaces are treated by lines with different number of pores that allow clarification of each of the surfaces influence on the lubricating film behavior.
Design/methodology/approach
A transient, spatially one-dimensional model of surfaces with surface-unequal pore numbers and sizes has been applied in the context of liquid lubrication. Special program for parametric study has been developed.
Findings
The calculations show that lubricating film between two surfaces with unequal pores provides better load support in comparison to the surfaces with equal pores. It is also shown that interaction between the pores of the opposite surfaces should be taken into consideration for defining better qualitative behavior of lubricating film.
Practical implications
The results of parametric calculations together with surface model can be used to design optimum lubrication quality of the rubbing surfaces.
Originality/value
The hydrodynamic behavior of a lubricating film between surfaces with different number of pore and their dimensions has been theoretically studied for the first time.