De Boer, GN, Gao, L, Hewson, RW et al. (1 more author) (2017) Heterogeneous Multiscale Methods for modelling surface topography in Elastohydrodynamic Lubrication line contacts. Tribology International, 113. pp. 262-278. ISSN 0301-679X
Abstract
A multiscale method for the Elastohydrodynamic Lubrication (EHL) of line contacts is derived based on the Heterogeneous Multiscale Methods. Periodicity applies to the topographical features and lubricant flow, data is homogenised over a range of variables at a micro-scale and coupled into a macro-scale model. This is achieved using flow factors as calculated from metamodels, which themselves evolve with the solution procedure. Results are given for an idealised topography and illustrate significant deviations from smooth surface assumptions as quantified by the flow factors. Improvements in the accuracy and efficiency with previous work and large fluctuations due to micro-EHL are also presented. Validation of the multiscale method with a deterministic topography is provided demonstrating good accuracy and efficiency.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Editors: |
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Copyright, Publisher and Additional Information: | © 2016 Elsevier Ltd. This is an author produced version of a paper published in Tribology International. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | EHL; micro-EHL; Surface Topography; Metamodelling |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Thermofluids, Surfaces & Interfaces (iETSI) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 14 Dec 2016 13:27 |
Last Modified: | 14 Dec 2017 01:38 |
Published Version: | https://doi.org/10.1016/j.triboint.2016.12.019 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.triboint.2016.12.019 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:109467 |