Riassunto analitico
In vehicle dynamics, tyres play a crucial role in determining the behaviour of a moving vehicle. They serve as the sole connection between the vehicle chassis and the road, transmitting vertical, longitudinal, and lateral forces. To accurately describe a vehicle's movement, it is essential to understand the characteristics of tyres and their impact on various driving situations.
Describing tyres is a complex task as they are influenced by multiple factors, including tyre design (such as material, tread pattern, and carcass stiffness), internal air pressure, and road surface texture, among others. There is a growing interest in the fields of tyre design and vehicle dynamics to gather precise data about different tyre patches and their corresponding contact pressure distributions under various operating conditions. The determination of spatial pressure distribution across the tyre patch serves several goals. Firstly, it helps assess its influence on tyre wear, and secondly, it provides insights into its impact on vehicle dynamics.
Therefore, the objective of this thesis is to study and enhance the physics of the Contact Patch model for the Pirelli Formula 1 tyre, in collaboration with Scuderia AlphaTauri. This involves examining the geometric aspects of the Contact Patch, including length, width, and area. The research begins with an extensive experimental analysis of the Contact Patch using the Tyre Rig, where real behaviour of experimental tyres is evaluated through scanning. Subsequently, the Contact Patch sub-model is analysed, described, and modified to accurately represent the trends observed in TestRig experiments and Tekscan tests provided by Pirelli. At the end the result are shown, commented and compared with last year’s model.
All these steps and analyses are performed using the MATLAB interface. The resulting model can be employed for future tyre development, comparing the contact patch of different tyres, and implementing new tools such as the search for optimal camber settings.
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