A ride comfort tyre model for off-highway vehicles
by Thomas H. Langer; Thorkil K. Iversen; Ole Ø. Mouritsen; Morten K. Bak; Michael R. Hansen
International Journal of Vehicle Design (IJVD), Vol. 65, No. 2/3, 2014

Abstract: Tyre modelling is a major challenge when using time domain multibody simulation models to evaluate ride comfort on off-highway commercial vehicles. Further, parameters for these big tyres are difficult to obtain and thus, commercial car tyre models are difficult to apply. In this research work, a simple vertical tyre model for off-highway ride comfort evaluation is suggested. A displaced volume approach has been developed and combined with the slip theory to yield a tyre model that can be characterised by only three parameters. Full scale measurements on a dump truck have been carried out. Force responses from measurements are compared to the simulation results. Acceleration responses and the level of wholebody vibrations have also been compared.

Online publication date: Thu, 30-Oct-2014

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