Finite element analysis of tire thermomechanical coupling rolling resistance
Based on the essential mechanism of tire rolling resistance, a finite element analysis method of handing thermomechanical coupling for rolling resistance was proposed. In order to verify the method, rolling resistance and temperature measurement experiments of rubber wheels made of tread rubber were conducted on a measured on RRS-?? model rolling resistance testing machine. Finite element analysis of rolling resistance and temperature of the wheels were also done, the results shew consistently coincides with that of test. Then the finite element analysis method was used to predict 12.00R20 tire rolling resistance and the influence factors on rolling resistance, such as inflation pressure, vertical loads and speeds were also analyzed.
Truck Tire Thermal-Mechanical FEA and DMA with Application to Endurance Evaluation4
Abstract This work presents a thermal-mechanical finite element analysis (FEA) of a typical heavy-duty radial truck tire on both drum and roadway. The calculated footprint pressures, strain energy density, and steady-state temperature distribution are compared between two cases. In addition to structural and thermal simulation techniques for obtaining stress, strain, and temperature distributions in the tire key areas, several material analysis techniques are also used to characterize the tire rubber materials. Temperature, frequency, and strain scan tests are conducted to obtain the dynamic mechanical properties of the tire rubbers of interest. Furthermore, the changes of the materials’ dynamic mechanical properties with fatigue have been investigated by testing tire materials before and after drum endurance tests. It has been found that different parts show different changing trends in dynamical properties after endurance tests, which might indicate different failure mechanisms. Combining the materials’...
Testing and Evaluation of Aircraft Tire Coupons
Abstract Coupons from unused aircraft tires were pre‐loaded in tension and conditioned in three ways: static thermal aging, room temperature dynamic aging, and dynamic thermal aging. The degradation of peel strength between plies was then studied. The results indicate that elevated temperature is more important than flexural stress or hoop stress in affecting the degradation of peel properties. A micrographic study indicates that there is a difference in failure mechanisms between unconditioned and conditioned coupons.