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Modelling the effectiveness of oil lubrication in reducing both friction and wear in a fretting contact

Sun, Wei; Shipway, Phil; Wenjie, Qin; Wang, Ming; Li, Xudong

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Authors

Wei Sun

Qin Wenjie

Ming Wang

Xudong Li



Contributors

Wenjie Qin
Researcher

Min Wang
Researcher

Wei Sun
Supervisor

Xudong Li
Researcher

Abstract

Lubrication is often employed in fretting contacts to reduce wear and stresses associated with high friction. Owing to the very small displacements associated with fretting, penetration of lubricating oils into the contact may not be effective. The efficacy of the penetration of the lubricant into the contact is very difficult to observe experimentally, and accordingly, this paper presents a numerical simulation of a lubricated fretting contact using a Coupled–Eulerian–Lagrangian (CEL) finite element method. Meso-scale CEL finite element models are developed to simulate the cylinder–on–flat arrangement used experimentally at the University of Nottingham in which the roughness of contact surfaces is characterized as fractal geometry by the Weierstrass-Mandelbrot (W-M) function. The fluid–solid and solid–solid contact in the lubricated fretting contact are simulated, and from these, wear and friction coefficients are determined. The effects of contact geometry on lubricated fretting contacts and lubricant on fretting wear are modelled and compared with experimental observations. Results indicate that oil lubrication reduces fretting wear and friction effectively in the less–conforming contacts but has little effect in the more–conforming contacts.

Citation

Sun, W., Shipway, P., Wenjie, Q., Wang, M., & Li, X. (2019). Modelling the effectiveness of oil lubrication in reducing both friction and wear in a fretting contact. Wear, 426-427(Part A), 770-777. https://doi.org/10.1016/j.wear.2019.02.029

Journal Article Type Article
Acceptance Date Feb 20, 2019
Online Publication Date Apr 10, 2019
Publication Date Apr 30, 2019
Deposit Date Feb 22, 2019
Publicly Available Date Mar 28, 2024
Journal Wear
Print ISSN 0043-1648
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 426-427
Issue Part A
Pages 770-777
DOI https://doi.org/10.1016/j.wear.2019.02.029
Keywords Fretting; Lubricated contact; Coupled–Eulerian–Lagrangian approach; Wear and friction coefficients
Public URL https://nottingham-repository.worktribe.com/output/1578398
Publisher URL https://www.sciencedirect.com/science/article/pii/S0043164819303898
Additional Information This article is maintained by: Elsevier; Article Title: Modeling the effectiveness of oil lubrication in reducing both friction and wear in a fretting contact; Journal Title: Wear; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.wear.2019.02.029; Content Type: article; Copyright: © 2019 Elsevier B.V. All rights reserved.

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