Morris et al_ JET-16-0181 Accepted version.pdf (738.21 kB)
0/0

A hydrodynamic flow analysis for optimal positioning of surface textures

Download (738.21 kB)
journal contribution
posted on 15.05.2017 by Nick Morris, Ramin Rahmani, Homer Rahnejat
The current study uses Reynolds equation and the cross-film flow velocity profile to analytically determine pertinent locations for texture feature positioning in sliding hydrodynamic contacts. The position of textures is shown to have a significant effect on the lubricant film thickness, thus the load carrying capacity and generated friction and power loss. It is shown that textures, residing after the inlet lubricant recirculation boundary and prior to the position of maximum contact pressure enhance film thickness and reduce friction in the contact of real rough sliding surfaces. The methodology is applied to partial surface texturing of a thin compression ring of a high performance race engine, with the predicted results confirming the utility of the expounded analytical technique and its conformance to the findings of others reported in literature. The time-efficient analytical and fundamental approach constitutes the main contribution of the paper to furtherance of knowledge

Funding

This research was part-funded by the Engineering and Physical Sciences (EPSRC) through the Encyclopaedic Program grant.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

IMECHE Part J: Journal of Engineering Tribology

Volume

231

Issue

9

Citation

MORRIS, N.J., RAHMANI, R. and RAHNEJAT, H., 2017. A hydrodynamic flow analysis for optimal positioning of surface textures. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 231 (9), pp. 1140-1150.

Publisher

Sage (© The Authors)

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc/4.0/

Acceptance date

19/04/2017

Publication date

2017-05-15

Notes

This paper was accepted for publication in the journal Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology and the definitive published version is available at https://doi.org/10.1177/1350650117709672

ISSN

1350-6501;2041-305X

Language

en

Exports