Research Of 205/55R16 Tire Wear Simulation Based On ABAQUS

The tire is an indispensable key component to ensure the normal operation of the automobile,and it plays a vital role in the driving process of the automobile.Its main role is to carry the load of the vehicle and absorb the impact and vibration of the ground.The force and torque needed for acceleration,braking,and turning are generated by friction with the ground.The performance of the tire directly affects the driving experience and even the safety of the vehicle.The wear resistance of the tire is one of the most important properties of tires.at present,the main way to evaluate wear resistance is to measure it directly through indoor or outdoor experimental tests.its disadvantage is that the experimental period is long and the test cost is high,which is not conducive to the rapid development of products.Therefore,it is necessary to use the finite element simulation method to quickly predict the tire wear performance.Taking the 205/55R16 car tire as the research object,the finite element analysis method is used to simulate the wear behavior of a semi-steel radial tire.Firstly,the material parameters of rubber material and skeleton material of205/55R16 tire are measured by experiments;according to the material distribution map,a two-dimensional tire cross-section model and three-dimensional tire model are constructed to realize tire inflation and grounding simulation;the effectiveness of tire finite element model is evaluated by comparing the experimental results of outer edge size,settlement,and stiffness with the simulation results.Then,based on the Archard wear model,the UMESHMOTION subroutine is developed in Fortran language,and the wear simulation method based on ABAQUS is verified through the wear experiments and simulation analysis of three kinds of tread rubber.The wear simulation of 205/55R16 tire under acceleration,free-rolling,and braking conditions is realized,the wear performance of the tire under comprehensive conditions is predicted,and the simulation results are verified by experiments.The influence of wear on tire performance is analyzed,and the results show that with the increase of wear degree,the grounding area increases gradually and tends to be constant,the maximum grounding pressure decreases,the deviation value of grounding pressure decreases,and the Mise stress of tire belt increases with the increase of wear degree.Finally,the influence factors of tire wear performance are analyzed,and the effects of tire inflation pressure and load,belt structure,and tread thickness on tire wear performance are studied respectively.Then,the wear resistance and grip performance of205/55R16 tires are optimized by orthogonal design.The ideal combination is 63° for the 1# belt layer,117° for the 2# belt layer,60 pieces/dm for the belt cord density,and 8mm for the tread rubber thickness.The average wear depth is lowered by 9.73% after optimization,while the ground contact area increases by 2.43%,resulting in a synergistic optimization of wear and grip performance.