Tire mechanical models, such as the Fiala model, which calculate the cornering characteristics of tires, are useful for tire design studies because they can link model parameters to tire design properties. In this study, we developed a mechanical model that takes into account the contact pressure- and lateral sliding velocity-dependency of kinetic friction in an elliptical contact patch tire model, which assumes an elliptical tire contact shape. The model calculates tread deformation including the effects of belt deformations, i.e., translation by lateral force, bending by lateral force, and torsion by aligning moment. Furthermore, tread width shrinkage caused by tread radius was considered. The validity of the developed model was verified by comparing its results with measured lateral stress distribution at the contact surface using an inside drum tester. The results showed that with appropriate model parameter settings, the model can reproduce lateral stress and friction coefficient distributions at the contact surface closer to actual distributions than conventional models.
Experimental Validation of Elliptical Contact Patch Tire Model Improved by Introducing Contact Pressure- and Slip Velocity-Dependent Friction Coefficient
Lect.Notes Mechanical Engineering
The IAVSD International Symposium on Dynamics of Vehicles on Roads and Tracks ; 2023 ; Ottawa, ON, Canada August 21, 2023 - August 25, 2023
13.10.2024
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
System and method for calculating margin of friction coefficient at tire contact patch
Europäisches Patentamt | 2021
|Quasi-static analysis of two-dimensional rolling contact with slip-velocity dependent friction
Online Contents | 2012
|Tire contact patch pressure distribution model for the static parking maneuver
Springer Verlag | 2018
|Friction coefficient during differential slip in a contact under heavy load
British Library Online Contents | 2005
|A Comprehensive Tire Model with Two-dimensional Contact Patch
British Library Conference Proceedings | 2005
|