Abstract:
The effect of three different factors, which are inflation pressure,
vertical load and coefficient of friction on the natural frequencies of a tire
(175/70 R13) has been studied. A three dimensional tire model is constructed,
using four different material properties and parts in the tire. Mechanical properties
of the composite parts are evaluated. After investigating the free vibration,
contact analysis is carried out. A concrete block and the tire are modelled together,
using three different coefficients of friction. Experiments are run under
certain conditions to check the accuracy of the numerical model. The natural
frequencies are measured to describe free vibration and vibration of the tire
contacted by ground, using a damping monitoring method. It is seen, that experimental
and numerical results are in good agreement. On the other hand,
investigating the impact of three different factors together is quite difficult on
the natural frequencies. When some of these factors are assumed to be constant
and the variables are taken one by one, it is easier to assess the effects.
