A fast method for computing convolutions with structural Green’s functions: application to tyre dynamic contact problems
Keywords:
dynamic contact, tyre, road, Green’s function, convolution, identificationAbstract
Tyre/road contact is the main source of car noise at speeds greater than 50 km/h. In this context, we have developed a new approach for modelling tyre vibrations and contact with rigid road surfaces during rolling. For tyres, a periodic model is used to compute Green’s functions. The response of tyres can, thus, be modelled over a large frequency range. Then, a fast convolution and a new contact model are developed and examples of computations of contact stress are given for real road textures. Spectra of stress for different tyre velocities are also computed.
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