A multiscale-approach for wear prediction in journal bearing systems–from wearing-in towards steady-state wear

F König, AO Chaib, G Jacobs, C Sous - Wear, 2019 - Elsevier
The present study aims to predict the wear in journal bearings during steady-state operation
in the mixed-lubrication regime starting with a critical assessment of commonly used wear …

A unified treatment of tribo-components degradation using thermodynamics framework: a review on adhesive wear

L Koottaparambil, MM Khonsari - Entropy, 2021 - mdpi.com
An extensive survey of open literature reveals the need for a unifying approach for
characterizing the degradation of tribo-pairs. This paper focuses on recent efforts made …

[PDF][PDF] Experimental tribological performance evaluation of nano lubricant using multi-walled carbon nano-tubes (MWCNT)

KP Lijesh, SM Muzakkir, H Hirani - Int. J. Appl. Eng. Res, 2015 - iitd.ac.in
The tribological properties of the mineral base oils are enhanced significantly with the
addition of Multi-Walled Carbon Nano-Tubes (MWCNT) particularly under extreme contact …

On the integrated degradation coefficient for adhesive wear: a thermodynamic approach

KP Lijesh, MM Khonsari, SV Kailas - Wear, 2018 - Elsevier
Normal adhesive wear process in tribological components is characterized by a non-linear
behavior during the transient running-in stage followed by a constant rate of steady-state …

On the degradation of tribo-components in boundary and mixed lubrication regimes

KP Lijesh, MM Khonsari - Tribology Letters, 2019 - Springer
Recent research in dry (unlubricated) contacts reveals that the Archard's coefficient K cannot
accurately characterize wear when operating under transient conditions such as those …

Turbulent flows over a backward facing step simulated using a modified partially averaged Navier–Stokes model

R Huang, X Luo, B Ji, Q Ji - Journal of Fluids …, 2017 - asmedigitalcollection.asme.org
A modified partially averaged Navier–Stokes model (MPANS) is proposed by treating the
standard k–ε model as the parent model and formulating the unresolved-to-total kinetic …

Characterization of abrasive wear using degradation coefficient

KP Lijesh, MM Khonsari - Wear, 2020 - Elsevier
The application of the degradation entropy generation (DEG) theorem in assessing the
degradation of tribo-pair experiencing dry as well as lubricated adhesive wear has been …

Application of thermodynamic principles in determining the degradation of tribo-components subjected to oscillating motion in boundary and mixed lubrication regimes

KP Lijesh, MM Khonsari - Wear, 2019 - Elsevier
Recent studies reveal that the degradation-entropy generation (DEG) theorem based on
thermodynamic principles can be satisfactorily employed to determine the degradation of a …

Steady-state performance of a circular journal bearing lubricated with a non-Newtonian fluid considering the elastic deformation of the liner

B Chetti, H Zouggar - Proceedings of the Institution of …, 2019 - journals.sagepub.com
In this work, a numerical study of the effect of elastic deformation on the static characteristics
of a circular journal bearing operating with non-Newtonian fluids obeying to the power law …

On the useful life of tribo-pairs experiencing variable loading and sliding speed

KP Lijesh, MM Khonsari - Wear, 2018 - Elsevier
Tribo-pairs experiencing fluctuating operating conditions are expected to have lower useful
life compared to those that operate in a steady state condition. The objective of the present …