Being a typical representative of detailed mechanical tire models ‘below’ true FEM models, the author’s model family FTire (Flexible Ring Tire Model) will be discussed in greater detail here. FTire development started in 1998, using certain ideas and numerical concepts of the author’s ‘coarse-mesh’ FE model DNSTire ([1], [2], [4]) and the spatial non-linear ‘rigid-ring’ model BRIT ([3], [5], [6...

This paper deals with the level of detail that is necessary for representation of tread pattern in finite element tire models. Different methods for creation of tire tread mesh are systematized by two different criteria: the most common approaches and the finite element analysis type. Some of the representative approaches found in literature are given in more detail and their advantages and dis...

ERP system is based on the ideas and methods of supply chain management,and the integrated information management system is developed on the basis of MRP II, it represents the development trend of management revolution of manufacturing enterprises in the information age. [1]ERP system has strong application values in the tire enterprise, its main purpose is to allocate and balance the enterpris...

Tire forces are the major forces propelling the road vehicles. They significantly affect the dynamic behavior of the vehicles. Estimation of the tire forces is essential in vehicle dynamics and control. This paper presents an observer-based scheme for estimation of the longitudinal tire force of electric vehicles in real time. The observer is based on a nonlinearity observer method. The pole-pl...

The characteristics of tire/road interaction noise are mainly determined by the tread pattern of a tire and it is known that the impact force at leading edge of tire is the main cause of the pattern noise. This study is concerned with the prediction of tire pattern noise: The procedure involves the measurement of the impact force at leading edge, the employment of Hertzian impact theory and lon...

In this paper, multi-objective uniform-diversity genetic algorithm (MUGA) with a diversity preserving mechanism called the -elimination algorithm is used for Pareto optimization of 5-degree of freedom vehicle vibration model considering the five conflicting functions simultaneously. The important conflicting objective functions that have been considered in this work are, namely, vertical accele...

A novel observer structure for vehicle side slip angle (β ) estimation is proposed, in which a local approximation of the nonlinear tire model is adopted. Fuzzy logic approach is adopted to combine the local observer models so as to deal with the nonlinear nature of vehicle dynamics. The derivation of observer’s state equations and the estimation mechanism is developed. By choosing the membersh...

An extension of the LuGre dynamic friction model from longitudinal motion to longitudinal/lateral motion is developed. Applying this model to the motion of a tire we derive a model for tire-road contact forces and moments. A comparison of the steadystate behaviour of the dynamic model with existing static tire friction models is also presented. This comparison allows one to determine the values...

INTRODUCTION Tire explosion injuries are rare, but they may result in a severe injury pattern. Case reports and statistics from injuries caused by exploded truck tires during servicing are established, but trauma from exploded small tires seems to be unknown. CASE PRESENTATION A 47-year-old german man inflated a wheelbarrow tire. The tire exploded during inflation and caused an open, multiple...