Abstract
The investigation of tyre modal behaviour is important for vehicle comfort, road damage, tyre wear, and standing waves. The current paper presents finite element models of radial 9.00R20 and bias 9.00-20 truck tyres developed using ABAQUS software for study of tyre modal behaviour. The real structure of tyres was modelled, taking into account different components of tyres: rubber, steel and cord reinforcements. The models include only circumferential grooves in the tread. Finite element analyses provided natural frequencies and modal shapes of the tyre in contact with the road. The paper analyses only the radial natural frequencies and associated modal shapes.
Keywords: finite element, truck tyre, motor vehicle, natural frequencies, modal shapes