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Experimental and Numerical Analyses of the Dynamic Behavior of Rolling Tires in order to Improve the Tire Modeling Accuracy

Final Report Summary - TIRE-DYN (Experimental and Numerical Analyses of the Dynamic Behavior of Rolling Tires in order to Improve the Tire Modeling Accuracy)

The increasing complexity and shorter development times of vehicles require more accurate and efficient simulation tools. Already in the early phases of the vehicle development, a reliable prediction of the tire dynamic behavior is required to assess and optimize vehicle performances, such as, tire/road noise, handling, ride comfort, vehicle NVH (Noise, Vibration and Harshness) and durability. In addition, the tire dynamic behavior plays a key role in several new automotive technologies, such as, intelligent driver assistance systems, active suspension, in-wheel electric drive, intelligent tires,…

The objective of the TIRE-DYN project is to obtain more accurate structural tire models through a better understanding of the influence of rolling on the tire dynamic behavior. Up till now, the physical phenomena that determine the complex dynamic properties of a rolling tire are not fully understood due to the strong multi-disciplinary nature of the subject. Consequently, the current tire models are not able to provide an efficient and accurate prediction of the rolling tire dynamic behavior. TIRE-DYN studies the physical phenomena through an integrated approach in which the state-of-the-art in the field of experimental and numerical tire dynamic analyses are linked and consolidated. Based on the obtained insights, the effects of rolling will be implemented in existing tire models in order to improve their accuracy and applicability. The developed implementations will be experimentally validated afterwards.

The integrated research approach of TIRE-DYN is based on a continuous transfer of scientific and engineering knowledge between industry and academia. Through secondments, recruitments, training and networking activities, this knowledge will be efficiently transferred. The outcome of the project will strengthen the European automotive industry and research through the availability of efficient and accurate tire dynamics simulation tools.

The overall objective of the TIRE-DYN project is to obtain more accurate structural tire models through a better understanding of the influence of rolling on the tire dynamic behavior. This goal will be achieved by consolidating and linking the state-of-the-art in the field of experimental and numerical tire dynamic analysis techniques. The following specific technical and scientific objectives are defined in the project:

• Development of an industrially applicable experimental method to characterize the dynamic behavior of rolling tires.
• Development of a validated, highly detailed tire model to predict the complex eigenmodes of a stationary rolling tire.
• Identification of the physical phenomena that are involved in the complex dynamic behavior of a rolling tire.
• Implementation of the effects of rolling in more simplified existing structural tire models in order to increase the accuracy and versatility of these models.

Throughout the project, 10 fellows (3 ESR and 7 ER’s) have been recruited and seconded in the network in view of the transfer of knowledge activities. More information about the project can be found at the project website http://www.tiredyn.org


Dr.ir. Bert Pluymers – KU Leuven Mechanical Engineering
bert.pluymers@kuleuven.be

Prof.dr.ir. Wim Desmet – KU Leuven Mechanical Engineering
wim.desmet@ kuleuven.be

KU Leuven,
Department of Mechanical Engineering,
Celestijnenlaan 300B – box 2420,
3001 Heverlee,
Belgium