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1 2007

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Experimental Results and Models of the Tire/Road Contact

Kröger M., Gäbel G., Moldenhauer P.

Machine Dynamics Problems

2007

Vol. 31, No. 2

84-94

The contact between tire tread block and road surface is very complicated and usually unknown. The dynamic behaviour of the tread blocks is strongly influenced by the contact situation e.g. contact stiffness, local friction coefficient as well as wear which changes the tread block geometry and in hence the local contact forces. Within this paper a dynamic tread block model is presented describing the dynamic tread block behaviour using an effective reduction method. The model is built up modularly and combines the non-linear contact stiffness due to the rough surface, the local friction coefficient in dependency of the relative velocity and wear mechanisms. Measurements of the different contact phenomena which are considered in the model are shown and exemplary simulation results are presented to clarify the effectiveness of the modular model.