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A Modal-Based Derivation of Transient Pressure Distribution Along the Tyre-Road Contact

Journal Article
2009-01-0457
ISSN: 1946-3995, e-ISSN: 1946-4002
Published April 20, 2009 by SAE International in United States
A Modal-Based Derivation of Transient Pressure Distribution Along the Tyre-Road Contact
Sector:
Citation: Tsotras, A. and Mavros, G., "A Modal-Based Derivation of Transient Pressure Distribution Along the Tyre-Road Contact," SAE Int. J. Passeng. Cars – Mech. Syst. 2(1):680-692, 2009, https://doi.org/10.4271/2009-01-0457.
Language: English

Abstract:

The two-dimensional, frictional tyre-road contact interaction is investigated. A transient contact algorithm is developed, consisting of an analytical belt model, a non linear sidewall structure and a discretized viscoelastic tread foundation. The relationship between the magnitude/shape of the predicted two-dimensional pressure distribution and the corresponding belt deformation is identified. The effect of vertical load and the role of sidewall non linearity are highlighted. The modal expansion/reduction method is proposed for the increase of the computational efficiency and the effect of the degree of reduction on the simulation accuracy is presented. The qualitative results are physically explained through the participation of certain modes in the equilibrium solution, offering directions for the application of the modal reduction method in shear force oriented tyre models.