Abstract
Tire footprint properties have important effects on tire-road contact pressure distribution and, consequently, on the general performance of the tire when it is in contact with the road. Most of the research conducted in this area is related to the tire performance under static loading conditions. Past studies show that the slip ratio of the tire plays a significant role on tire footprint characteristics. In this study, to account for the effect of the tire footprint characteristics on the tire performance, a finite element tire model with detailed tread pattern (similar to the tire 205/55R16 used for testing and modeling) has been developed using ABAQUS software. The model has been validated using the experimental methods for both footprint dimensions and vertical stiffness values. The comparison of the results from experiment and simulation show a satisfying agreement within 3.6% error. The model has next been used to simulate tire-road interaction for both, static loading conditions and slippage. The results for the footprint properties of the tire with applied normal load of 4 kN for slip ratio of 10%, 15%, 20%, 35%, and 40% are presented. The footprint characteristics of the tire have been parametrized in order to describe the changes in the tire-road contact patch properties under different operational conditions. The parameters with the greatest effect on tire traction performance have been identified and the relationships between these parameters and the tire performance have been presented.
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Acknowledgments
This study has been partially supported by China Scholarship Council for Dr. Liang and Dr. Ji, by the U.S. Army Engineer Research and Development Center (ERDC) for Dr. Sandu, and by the Terramechanic, Multibody, and Vehicle Systems (TMVS) Laboratory at Virginia Tech for Mrs. Mousavi.
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Liang, C., Ji, L., Mousavi, H., Sandu, C. (2020). Evaluation of Tire Traction Performance on Dry Surface Based on Tire-Road Contact Stress. In: Dumitru, I., Covaciu, D., Racila, L., Rosca, A. (eds) The 30th SIAR International Congress of Automotive and Transport Engineering. SMAT 2019. Springer, Cham. https://doi.org/10.1007/978-3-030-32564-0_17
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DOI: https://doi.org/10.1007/978-3-030-32564-0_17
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