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Experimental investigation of tyre–road friction considering topographical roughness variation and flash temperature

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journal contribution
posted on 2023-03-17, 16:49 authored by Kyriakos Grigoriadis, Georgios MavrosGeorgios Mavros, James KnowlesJames Knowles, Antonios PezouvanisAntonios Pezouvanis
Predicting tyre–road friction requires various inputs that are known with differing levels of confidence. This paper studies the prediction and associated experimental confirmation of rubber friction on real roads at high sliding speeds. Friction predictions are obtained from Persson's flash temperature model: the topography of the road surface is measured using an optical profilometer, while the rubber's viscoelastic modulus is obtained through Dynamic Mechanical Analysis. A newly developed friction tester performs in-situ friction measurements, while controlling and monitoring bulk and contact surface temperature, respectively. Local topographical road roughness variations were identified as a major contributing factor leading to predicted friction variations of over 50%, while the flash temperature predictions showed good correlation with temperature measurements from near the rubber–road interface.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

Tribology International

Volume

181

Publisher

Elsevier

Version

VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution 4.0 International Licence (CC BY). Full details of this licence are available at: https://creativecommons.org/licenses/by/4.0/

Acceptance date

2023-01-23

Publication date

2023-02-03

Copyright date

2023

ISSN

0301-679X

Language

en

Depositor

Dr James Knowles. Deposit date: 17 March 2023

Article number

108294