Implementations, applications and limits of tyre models in multibody simulation

Abstract

The article focuses on the interface between multibody software and tyre models as well as on the applications and limitations of tyre models implemented in multibody codes. Basic principles of multibody simulation will be followed by a classification of the range of applications of multibody codes for vehicle dynamics design and assessment and the corresponding classification of tyre models in multibody simulation. The classification will be made along occurring oscillation amplitudes ranging from very small to large part displacements and along occurring frequencies ranging from quasistatic movements up to the acoustic frequency range. The basic structure of the interfaces between tyre model, road description and multibody model will be revealed and the different call modes of tyre models in multibody codes will be summarized. As examples some industrial applications of tyre models in multibody simulation will be explained. This includes quasistatic tyre model-based simulation scenarios as well as lateral and longitudinal dynamic simulation scenarios in quite a low-frequency range and finally vertical and combined dynamic simulation scenarios in higher-frequency ranges.

Keywords:

• Multibody simulation
• Tyre models
• SIMPACK