wheel numeric and different versions of mobility numbers are important models for predicting the rolling resistance. in this study, data related to the rolling resistance of cross ply and radial ply tires were compared with the resultant values from several models. also, the preciseness of models in rolling resistance prediction was evaluated. for this purpose f test and 1-1 line method (p≥ 0.0...

Wheel numeric and different versions of mobility numbers are important models for predicting the rolling resistance. In this study, data related to the rolling resistance of cross ply and radial ply tires were compared with the resultant values from several models. Also, the preciseness of models in rolling resistance prediction was evaluated. For this purpose F test and 1-1 line method (p≥ 0.0...

A finite element modeling of tire using Ansys is used to analyze the free vibration of radial pneumatic tires. The natural frequencies and mode shapes of pneumatic tires are investigated. The effects of some parameters such inflation pressure, tread pattern, ply-angles and thickness of belts on the natural frequency of tires are investigated. Keywords— natural frequency, inflation pressure, tre...

the natural frequencies and mode shapes of pneumatic tires are predicted using a geometrically accurate, three-dimensional finite element modeling. tire rubber materials and cord layers are represented independently using “shell element” available in cosmos. the effects of some physical parameters such as the inflation pressure tread pattern, thickness of belts and ply angles to the natural fre...

The natural frequencies and mode shapes of pneumatic tires are predicted using a geometrically accurate, three-dimensional finite element modeling. Tire rubber materials and cord layers are represented independently using “shell element” available in COSMOS. The effects of some physical parameters such as the inflation pressure tread pattern, thickness of belts and ply angles to the natural ...

This study presents the results of research related to agriculture tire deformation under variable vertical load and inflation pressure. The objects were two tires same size different internal structures. Three levels pressure five used. loaded with each was scanned using 3D scanner—the effect this operation a three-dimensional image part (near place contact surface). next step creation horizon...

Strong fibers can fail at low stresses under cyclic loading. This phenomenon, which is called cyclic fatigue, occurs to an unexplained extent only when part (or all) of the fiber is compressed or twisted for some fraction of the strain cycle. Industrial yarns used in rubber, a 2 MMM lb. annual market in which USA fiber producers are highly competitive, must retain a maximum fraction of their in...

Often when vehicles interact with roadside hardware like guardrails, bridge rails and curbs, the interaction between the roadside hardware and the tire causes the tire to lose its air seal and "blow-out". Once the seal between the rim and rubber tire is lost, the tire deflates. The behavior of the deflated tire is much different than the behavior of an inflated tire such that when this behavior...

This research presents the results of tests conducted under field conditions and included measuring footprint tires on soil. Two agricultural same size but different internal structures were tested, 500/50R17 (radial) 500/50-17 (bias-ply). The factors tire inflation pressure (0.8 bar, 1.6 2.4 bar) vertical load (7.8 kN, 11.8 15.7 kN). made soil was scanned with a 3D scanner, resulting in digita...