| Simulation Study on Effect of Drum Size on Durability of Off-The-Road Radial Tire |
| Received:June 14, 2022 Revised:June 14, 2022 |
| DOI：10.12136/j.issn.1000-890X.2024.04.0305 |
| Key Words: off-the-road radial tire；drum size；durability；simulation analysis |
| Author Name | Affiliation | E-mail | | YIN Hanjian* | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | yinhaijian7@163.com | | LIU Benxin | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | |
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| Abstract: |
| Taking the 445/95R25 all-steel off-the-road radial tire as an example，the three-dimensional model of off-the-road radial tire was established，Yeoh model was determined as the optimal rubber material constitutive model through fitting rubber material stress and strain test data，and the simulation research on the impact of the drum size on the tire durability was conducted.The results showed that，under the same inflation pressure and load，as the drum diameter increased，the tire deflection decreased，the contact area with the drum increased，and the circumferential contact pressure distribution became more uniform，leading to the decrease in the extreme values of the tire shoulder strain energy density，Mises stress and shear strain.When the drum diameter exceeded 10 m，the effects of the drum diameter on the contact characteristics between the tire and drum and the tire’s mechanical properties were significantly reduced.When the drum diameter increased from 1.7 m to 3 m，the tire shoulder strain energy density decreased by 5%，and the tested tire durability life was extended by about 20%. |
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