scholarly journals Numerical Investigation of Texturing and Wall Slip in Lubricated Sliding Contact Considering Cavitation

2017 ◽  
Vol 12 (2) ◽  
pp. 67-75 ◽  
Author(s):  
Muchammad ◽  
Mohammad Tauviqirrahman ◽  
Jamari ◽  
Dirk Jan Schipper
Keyword(s):  
Numerical Investigation ◽  
Wall Slip ◽  
Sliding Contact ◽  
Lubricated Sliding

scholarly journals 3D Numerical study on the effect of shaft eccentricity on the tribological performance of lubricated sliding contact

2018 ◽  
Vol 159 ◽  
pp. 02042
Author(s):  
Mohammad Tauviqirrahman ◽  
Bayu Kurniawan ◽  
Jamari
Keyword(s):  
Reynolds Equation ◽  
Journal Bearing ◽  
Numerical Study ◽  
Wall Slip ◽  
Sliding Contact ◽  
Eccentricity Ratio ◽  
3D Numerical Modelling ◽  
Hydrodynamic Journal Bearing ◽  
Wedge Effect ◽  
Lubricated Sliding

Recently, a growing interest is given to the wall slip and the artificial texturing for improving the performance of lubricated sliding contact. The use of wall slip, artificial texturing, and the combination of slip and texturing can be the effective approach to enhance the performance of the bearing. The present study examines the effect of shaft eccentricity ratio on the hydrodynamic journal bearing performance. 3D numerical modelling based on modified Reynolds equation is used to analyse the effect of texturing and the wall slip on the characteristics of a hydrodynamically lubricated sliding contact. The analysis results point out that with respect to the load support and the power loss of the bearing, the use of wall slip on smooth surface is the most excellent configuration compared to other patterns (i.e. slip-texturing, pure texturing and conventional patterns). It is also confirmed that the wedge effect due to the shaft eccentricity has a significant role in altering the lubricant behaviour. Thus, a particular care must be taken in choosing the pattern of lubricated sliding contact as well as the shaft eccentricity.

scholarly journals Friction and wear behavior of thin-film ceramic coatings under lubricated sliding contact

2014 ◽  
Vol 569 ◽  
pp. 70-75 ◽  
Author(s):  
Cinta Lorenzo-Martin ◽  
Oyelayo O. Ajayi ◽  
Sol Torrel ◽  
Iqbal Shareef ◽  
George R. Fenske
Keyword(s):  
Thin Film ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Ceramic Coatings ◽  
Sliding Contact ◽  
Friction And Wear Behavior ◽  
Lubricated Sliding

A model for single asperity perturbation on lubricated sliding contact with DLC-coated solids

2015 ◽  
Vol 82 ◽  
pp. 423-430 ◽  
Author(s):  
G. Pagnoux ◽  
S. Fouvry ◽  
M. Peigney ◽  
B. Delattre ◽  
G. Mermaz-Rollet
Keyword(s):  
Sliding Contact ◽  
Single Asperity ◽  
Lubricated Sliding

On the Modeling of Quasi-Steady and Unsteady Dynamic Friction in Sliding Lubricated Line Contact

2009 ◽  
Vol 132 (1) ◽  
Author(s):  
H. Sojoudi ◽  
M. M. Khonsari
Keyword(s):  
Experimental Data ◽  
Friction Coefficient ◽  
Reynolds Equation ◽  
Friction Model ◽  
Sliding Contact ◽  
Dynamic Friction ◽  
Line Contact ◽  
Sliding Velocity ◽  
Friction Behavior ◽  
Lubricated Sliding

A simple but realistic dynamic friction model for the lubricated sliding contact is developed based on decoupling the steady and unsteady terms in Reynolds equation. The model realistically captures the physics of friction behavior both when speed is increased unidirectionally or when operating under oscillating condition. The model can simulate the transition from boundary to mixed to full film regimes as the speed is increased. Two different classes of simulations are performed to show the utility of the model: the so-called quasisteady, where the sliding velocity is varied very slowly, and the oscillating sliding velocity, where the friction coefficient exhibits a hysteresis type behavior. Both categories of simulation are verified by comparing the results with published experimental data.

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