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Viscoelastic contact model for the prediction of tire/road contact forces and rolling resistance
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Structural and vibroacoustics.ORCID iD: 0000-0002-3609-3005
Department of Mechanical Engineering, Eindhoven University of Technology.
Department of Mechanical Engineering, Eindhoven University of Technology.
2011 (English)In: 18th International Congress on Sound and Vibration 2011, ICSV 2011, 2011Conference paper (Other academic)
Abstract [en]

A combined Hertz/Maxwell model is presented to approximately describe the interaction between a rigid indenter and a viscoelastic half-space, and therefore the force-indentation relationship including the deformation rate and energy losses. Thismodel is a numerically efficient alternative to the exact viscoelastic half-space formulation, to be implemented in a tyre/road interaction model for the prediction of tyre vibrations, rolling resistance and noise. Here the combined Hertz/Maxwell model is used to assess the influence of road texture on the contact stiffness and damping based on the analysis of 30 road surface types. The parameters of this model are obtained by fitting the load-penetration curves obtained from the exact viscoelastic half-space calculation. It is shown that both the stiffness and damping parameters decrease as the road texture depth increases, since, for a given penetration depth, the effective contact area decreases as the road texture depth increases. Assessing the relevance of these effects for the accurate prediction of tyre/road interaction is subject of ongoing work.

Place, publisher, year, edition, pages
Keyword [en]
Accurate prediction, Contact stiffness, Damping parameters, Deformation rates, Effective contact, Indenters, Load-penetration curves, Road surfaces, Road textures, Tyre/road contacts, Tyre/road interaction, Viscoelastic contact, Viscoelastic half-space
National Category
Applied Mechanics
URN: urn:nbn:se:kth:diva-66811ScopusID: 2-s2.0-84871527988ISBN: 9781618392596OAI: diva2:484714
ICSV18. Rio de Janeiro, Brazil,10 - 14 July 2011

QC 20120410

Available from: 2012-01-27 Created: 2012-01-27 Last updated: 2014-09-30Bibliographically approved

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Lopez Arteaga, Ines
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