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Discrete element analysis of friction performance for tire-road interaction

Jiale Lu (Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, China)
Baofeng Pan (School of Transportation and Logistics, Dalian University of Technology, Dalian, China)
Tiankai Che (Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, China)
Dong Sha (Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 27 April 2020

Issue publication date: 27 April 2020

159

Abstract

Purpose

This study aims to investigate the influence of surface texture distribution in respect to the procedure of pavement surface wear on friction performance.

Design/methodology/approach

The Weierstrass–Mandelbrot (W-M) equation is used to appropriate pavement surface profile. Through this approximation, artificial rough profiles by combining fractal parameters and conventional statistical parameters for different macro-texture are created to simulate the procedure of pavement surface wear. Those artificial profiles are then imported into discrete element model to calculate the interaction forces and friction coefficient between rolling tire and road. Furthermore, wavelet theory is used to decompose the profiles into different scales and explore the correlation between the profiles of each scale and pavement friction.

Findings

The influence of tire vertical displacement (TVD) on friction coefficient is greater than fractal dimension of road surface texture. When TVD decreases, the profiles can provide higher friction, but the rolling stability of tire is poor. The optimal fractal dimension of road surface is about 1.5 when considering friction performance. The pavement friction performance improves with wavelength from 0.4 to 6.4mm and decreases with wavelength from 12.8 to 51.2mm.

Originality/value

Artificial fractal curves are generated and analyzed by combining W-M function with traditional parameter, which can also be used to analyze the influence of texture distribution on other pavement performance. The preliminary research provides a potential approach for the evaluation of pavement friction performance.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-11-2019-0499/

Keywords

Acknowledgements

The authors declare that there is no conflict of interest regarding the publication of this paper

Citation

Lu, J., Pan, B., Che, T. and Sha, D. (2020), "Discrete element analysis of friction performance for tire-road interaction", Industrial Lubrication and Tribology, Vol. 72 No. 7, pp. 977-983. https://doi.org/10.1108/ILT-11-2019-0499

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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