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The simulation of in-plane tyre modal behaviour: a broad modal range comparison between analytical and discretised modelling approaches

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journal contribution
posted on 10.01.2013 by Achillefs Tsotras, Georgios Mavros
In-plane tyre modal behaviour determines the response of tyres to ride excitations and braking/traction manoeuvres. In many studies, the interest is limited to relatively low frequencies and a detailed investigation into the ability of models to accurately simulate higher-order responses is unnecessary. In cases where an in-plane model is to be used for the generation of the contact deformation and stresses, or where modal reduction methods are implemented, a detailed knowledge of the modal response is desirable. The present work forms a study on the ability of a number of frequently used modelling approaches to generate realistic modal data throughout a wide frequency range. The analytical ring on elastic foundation model is used as a benchmark throughout the paper. Its predictions are compared with those of two discretised models, namely a truss- and a beam-based model. The sensitivity of the ring’s response to a number of physical parameters is discussed. The results are used to inform the comparison between the analytical ring and the discretised models, providing explanations for any discrepancies observed. The limited applicability of the truss model is pointed out, while the accuracy of the beam-based model is enhanced by a circumferential inextensible string element. Both the ring and the enhanced beam models are further improved with the addition of a nonlinear string-based sidewall that accounts for the change in sidewall stiffness with inflation pressure. The findings may offer a reference when setting up in-plane models, including the stage of planning modal tests for parameter identification.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

TSOTRAS, A. and MAVROS, G., 2009. The simulation of in-plane tyre modal behaviour: a broad modal range comparison between analytical and discretised modelling approaches. Vehicle System Dynamics, 47 (11), pp. 1377 - 1400.

Publisher

© Taylor & Francis

Version

AM (Accepted Manuscript)

Publication date

2009

Notes

This article was published in the journal Vehicle System Dynamics [© Taylor & Francis] and the definitive version is available at: htpp://dx.doi.org/10.1080/00423110802635405

ISSN

0042-3114

Language

en

Exports