Morris et al_ JET-16-0181 Accepted version.pdf (738.21 kB)
A hydrodynamic flow analysis for optimal positioning of surface textures
journal contribution
posted on 2017-05-15, 10:40 authored by Nick MorrisNick Morris, Ramin RahmaniRamin Rahmani, Homer RahnejatThe 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 TribologyVolume
231Issue
9Citation
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
2017-04-19Publication date
2017-05-15Notes
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/10.1177/1350650117709672ISSN
1350-6501;2041-305XPublisher version
Language
- en