Proceedings of the Institution of Mechanical Engineers, Part J- Journal of Engineering Tribology-2015-Morris-316-35.pdf (2.13 MB)
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Combined numerical and experimental investigation of the micro-hydrodynamics of chevron-based textured patterns influencing conjunctional friction of sliding contacts

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posted on 27.03.2015, 14:00 by Nick MorrisNick Morris, Michael Leighton, Miguel De la Cruz, Ramin RahmaniRamin Rahmani, Homer Rahnejat, S.J. Howell-Smith
Reciprocating and low-speed sliding contacts can experience increased friction because of solid boundary interactions. Use of surface texturing has been shown to mitigate undue boundary friction and improve energy efficiency. A combined numerical and experimental investigation is presented to ascertain the beneficial effect of pressure perturbation caused by micro-hydrodynamics of entrapped reservoirs of lubricant in cavities of textured forms as well as improved microwedge flow. The results show good agreement between numerical predictions and experimental measurements using a precision sliding rig with a floating bed-plate. Results show that the texture pattern and distribution can be optimised for given conditions, dependent on the intended application under laboratory conditions. The translation of the same into practical in-field applications must be carried out in conjunction with the cost of fabrication and perceived economic gain. This means that near optimal conditions may suffice for most application areas and in practice lesser benefits may accrue than that obtained under ideal laboratory conditions.

Funding

EPSRC Encyclopaedic Program Grant (grant number: EP/G012334/1)

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology

Volume

229

Issue

4

Pages

316-335

Citation

MORRIS, N.J. ... et al., 2015. Combined numerical and experimental investigation of the micro-hydrodynamics of chevron-based textured patterns influencing conjunctional friction of sliding contacts. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 229(4), pp. 316-335.

Publisher

Sage (IMechE)

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 3.0 International (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/3.0/

Acceptance date

23/10/2014

Publication date

2014-11-17

Copyright date

2015

Notes

This article is distributed under the terms of the Creative Commons Attribution 3.0 License (http://www.creativecommons.org/licenses/by/3.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (http://www.uk.sagepub.com/aboutus/openaccess.htm).

ISSN

1350-6501

eISSN

2041-305X

Language

en