Modeling and Analysis of Tire on Cylindrical Surface

Nowadays, many experimental tests are done in road vehicle industries in order to increase efficiency and improve the operation of different systems of a car. Despite importance of these experimental tests, there are many difficulties in tests like high costs, insufficient accuracy, safety problems and etc. that make some tests impossible or too difficult to be done. So, if it is possible to do tests on drum, some difficulties can be eliminated. Since, interaction of tire and road surface highly depends on geometry and properties of contact patch so models that are used for flat surface like Pasejka, Dugoff and Brush are not suitable for tire-drum interaction. The paper generalizes some flat tire-road interaction models to cylindrical surface, and then desirable data can be extracted from cylindrical model in tire-drum interaction. Survey conducted on flat models determined that two significant parameters that differs flat and cylindrical surfaces, are vertical pressure distribution in contact patch and length of contact patch. This paper gives special attention to finite element (FE) model of tire in ANSYS software package to extract parameters of tire-drum interaction and generalizes it.