Top topography surface roughness power spectrum for pavement friction evaluation

Mona Mahboob Kanafi; Ari J. Tuononen

doi:10.1016/j.triboint.2016.11.038

Top topography surface roughness power spectrum for pavement friction evaluation

Mona Mahboob Kanafi, Ari J. Tuononen

Department of Energy and Mechanical Engineering

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Abstract

This article deals with the most suitable calculation procedure for top topography surface roughness power spectrum (PSD). The information top PSD provides about the roughness characteristics and its practical application in tyre-road friction studies are covered. The influence of portions of top topography used for calculations on the realization these PSDs give about surface height distributions is investigated. Results of roughness PSDs generally proved to be dependent on portions of top topography used for calculations. A high correlation with an average around 0.8 was found with friction and top 20% of PSDs, but only at a short-scale surface roughness λ≤1 mm. Low correlation coefficients between friction and longer λ were discussed through the depth of the penetration of the rubber into each pavement.

Original language	English
Pages (from-to)	240-249
Number of pages	10
Journal	Tribology International
Volume	107
DOIs	https://doi.org/10.1016/j.triboint.2016.11.038
Publication status	Published - Mar 2017
MoE publication type	A1 Journal article-refereed

Keywords

power spectrum
pavement
tyre (tire)
road
surface roughness
friction

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10.1016/j.triboint.2016.11.038

Manuscript_checked_revised
This is the post print version of the following article: Mona Mahboob Kanafi & Ari Juhani Tuononen. 2016. Top topography surface roughness power spectrum for pavement friction evaluation. Tribology International. Volume 107, March 2017, Pages 240–249. ISSN 0301-679X. DOI: 10.1016/j.triboint.2016.11.038, which has been published in final form at http://www.sciencedirect.com/science/article/pii/S0301679X16304674.
Accepted author manuscript, 1.11 MBLicence: CC BY-NC-ND

Cite this

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title = "Top topography surface roughness power spectrum for pavement friction evaluation",

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AU - Tuononen, Ari J.

PY - 2017/3

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AB - This article deals with the most suitable calculation procedure for top topography surface roughness power spectrum (PSD). The information top PSD provides about the roughness characteristics and its practical application in tyre-road friction studies are covered. The influence of portions of top topography used for calculations on the realization these PSDs give about surface height distributions is investigated. Results of roughness PSDs generally proved to be dependent on portions of top topography used for calculations. A high correlation with an average around 0.8 was found with friction and top 20% of PSDs, but only at a short-scale surface roughness λ≤1 mm. Low correlation coefficients between friction and longer λ were discussed through the depth of the penetration of the rubber into each pavement.

KW - power spectrum

KW - pavement

KW - tyre (tire)

KW - road

KW - surface roughness

KW - friction

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DO - 10.1016/j.triboint.2016.11.038

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SN - 0301-679X

VL - 107

SP - 240

EP - 249

JO - Tribology International

JF - Tribology International

ER -

Top topography surface roughness power spectrum for pavement friction evaluation

Abstract

Keywords

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