The paper presents a combined numerical and experimental study of generated sliding friction at low sliding speeds and high load intensity, typical of the top compression ring–cylinder liner conjunction at top dead centre in the compression stroke of high performance race engines. Frictional losses in the transition from compression to power stroke represent a significant portion of cyclic cylinder losses. The cylinder liner is cross-hatch honed with non-Gaussian topography, including larger groove features and a fairly smooth plateau roughness. Surface-specific flow factors are derived to closely represent the actual real rough conjunction. The predictions closely agree with the representative reported precision tribometric study of measured friction.
Funding
The authors wish to express their gratitude to the
Engineering and Physical Sciences Research Council
for the financial support of Encyclopaedic Program
Grant: www.encyclopaedic.org, under which this
research was carried out. The authors also would like
to acknowledge the technical support of industrial
partners of Encyclopaedic, particularly Capricorn
Automotive Ltd (manufacturers of advanced cylinder
liner technology) and Castrol the suppliers of
lubricant.
History
School
Mechanical, Electrical and Manufacturing Engineering
Published in
Surface Topography: Metrology and Properties
Volume
4
Issue
1
Citation
LEIGHTON, M., RAHMANI, R. and RAHNEJAT, H., 2016. Surface-specific flow factors for prediction of friction of crosshatched surfaces. Surface Topography: Metrology and Properties, 4, 025002, 18pp.
Publisher
IOP Publishing Ltd.
Version
VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/
Acceptance date
2016-02-05
Publication date
2016-03-22
Notes
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