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Viscoelastic contact model for the prediction of tire/road contact forces and rolling resistance
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Strukturakustik.ORCID-id: 0000-0002-3609-3005
Department of Mechanical Engineering, Eindhoven University of Technology.
Department of Mechanical Engineering, Eindhoven University of Technology.
2011 (Engelska)Ingår i: 18th International Congress on Sound and Vibration 2011, ICSV 2011, 2011Konferensbidrag, Publicerat paper (Övrigt vetenskapligt)
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.

Ort, förlag, år, upplaga, sidor
2011.
Nyckelord [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
Nationell ämneskategori
Teknisk mekanik
Identifikatorer
URN: urn:nbn:se:kth:diva-66811Scopus ID: 2-s2.0-84871527988ISBN: 9781618392596 (tryckt)OAI: oai:DiVA.org:kth-66811DiVA, id: diva2:484714
Konferens
ICSV18. Rio de Janeiro, Brazil,10 - 14 July 2011
Anmärkning

QC 20120410

Tillgänglig från: 2012-01-27 Skapad: 2012-01-27 Senast uppdaterad: 2014-09-30Bibliografiskt granskad

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Lopez Arteaga, Ines

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