Simulation and experimental investigations of the dynamic interaction between tyre tread block and road

The dynamic behaviour of a tyre tread block is described by a modularly arranged model with a high numerical efficiency. Special emphasis is laid on the interaction between structural dynamics and contact mechanics. Parameter-dependent friction is implemented as well as a non-linear contact stiffness to consider the properties of the rough surface. The model includes local wear which influences the dynamic behaviour. The relevant parameters are obtained by experimental investigations. High-frequency stick-slip vibrations of the tread block occur e.g. on a corundum surface within a certain parameter range which are compared to simulation results. Furthermore, the model includes the rolling process of the tyre: the tread block follows a trajectory which is obtained from the deformation of the tyre belt. The results from simulations with a single tread block provide a deeper insight into highly dynamic processes that occur in the contact patch such as tyre squeal, run-in or snap-out effects. © Springer-Verlag Berlin Heidelberg 2010.