Determination of Basic Mechanical Parameters of the Tractor Tyre by Using Universal Approach

摘要

Tyre behaviour exerts crucial impact on every aspect of vehicle dynamics response. It is therefore of interestto have access to appropriate tyre model in order to address vehicle behaviour optimization by means of computersimulations. In this paper procedures for determination of some basic parameters of tractor tyre by using simple testfacility and universal measuring techniques are described, including dependence between tyre vertical load, staticradial deflection and contact length on the hard level ground, linearized radial stiffness and damping coefficients.Impact of tire pressure and vertical load on investigated quantities and relationships is also examined. Set of tyreparameters that can be used in simple tyre model was obtained. Linearized stiffness and damping coefficient values canbe used in certain applications of tyre viscoelastic structure modelling. Relationships between tyre load, deflection andcontact length can be useful when investigating tyre geometric or filtering properties such as enveloping behaviour.