ABSTRACT:
Vibration characterization and experimental modal analysis were carried out
with a heavily loaded vehicle tire. These tires are typically subjected to loads that are
over two times those experienced by a passenger car tire. The results obtained
through experimental modal analysis were compared to similar results obtained for
standard passenger car tires. The comparisons show that the heavily loaded tire has
unique dynamic characteristics. Complex damping and nonlinear behavior were
considered to explain these characteristics. A flexible ring tire model was used to
investigate these nonlinear characteristics. Complex damping was also examined to
explain the experimental observations. This thesis contains some of the first results
on vibration characterization of heavily loaded vehicle tires. The incorporation of the
results into a multi-degree-of-freedom tire model for use with the Effective Road
Profile Control scheme used for vehicle durability simulation studies was also
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