| Study on Mechanics of Steady State Free Rolling Tires |
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| DOI： |
| Key Words: tire；free rolling；subroutine method；finite element analysis |
| Author Name | Affiliation | | FENG Xijin | Tsinghua University；Tire Technology Alliance Co.，Ltd | | WEI Yintao | Tsinghua University | | ZHENG Xiaogang | Tsinghua University | | LI Hongwei | Tire Technology Alliance Co.，Ltd | | HE Jionghao | Tire Technology Alliance Co.，Ltd |
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| Abstract: |
| The kinetic characteristics of the steady state free rolling tire were discussed firstly，then the force and moment characteristics of the rolling tire and the moving vehicle were analyzed，the balance conditions of the forces and moments of the steady state free rolling tire were obtained，and the boundary and initial conditions were established in order to apply the FEA method to investigate the steady state of a free rolling tire.Using the subroutine method of Abaqus software，in-house software was developed by using Fortran code to analyze the steady state of a free rolling tire and deliver the results automatically，which improved the computational efficiency and tolerance.The comparison of the numerical data and experimental test results verified the reliability of the method.Furthermore，the forces and deformation of the tire in three conditions（driving，braking and free rolling） were discussed，which further confirmed the effectiveness of the method，and provided guidance for the research of the tire dynamicsin the tire/road contact area. |
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