Dynamic Behavior of Nonuniform Tire/Wheel Assemblies

摘要

Nonuniformities in the rotating tire and wheel components of a motor vehicle may excite ride vibrations. Both the vehicle and the wheel assembly are dynamic systems that interact via the forces and motions produced. Measurement of the force variations inherent to a nonuniform tire/wheel assembly in a meaningful way therefore requires a basic understanding of the dynamic systems involved. Impedance methods are employed to formulate a dynamic model for a nonuniform tire/wheel assembly and a loading system that can represent either a test machine or a motor vehicle. The models are used to explain the potential error sources that may arise in tire uniformity tests on a machine that has dynamic response in the range of interest.