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| 24.00R35全钢工程机械子午线轮胎胎圈裂口机理研究及胎圈部位轮廓设计优化 |
| Research on Bead Crack Mechanism of 24.00R35 All-steel Off-The-Road Radial Tire and Optimization of Bead Contour Design |
| Received:June 24, 2022 Revised:June 24, 2022 |
| DOI：10.12135/j.issn.1006-8171.2023.06.0331 |
| 中文关键词: 全钢工程机械子午线轮胎；胎圈；裂口；防水线；轮廓优化；有限元分析 |
| 英文关键词: tire; rim crack; optimization of ring contour;FEA |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | LI Miao* | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | terry.li@techking.com | | XIE Shiqiang | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | | | YIN Haijian | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | | | YIN Hongxin | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | | | MENG Yizhao | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | |
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| 中文摘要: |
| 基于有限元分析软件对24.00R35全钢工程机械子午线轮胎胎圈裂口进行仿真分析，分析胎圈裂口机理，结合分析结果对胎圈部位轮廓设计进行优化，并试制成品轮胎进行验证。结果表明：胎圈部位过渡圆弧设计和防水线高度对胎圈部位受力影响较大；胎圈侧部采用垂直线设计、胎圈部位轮廓与轮辋曲线互不干涉时，胎圈部位与轮缘的接触压力和剪切应力相对较小；适当的防水线高度可以减小轮胎防水线位置的接触压力和剪切应力；采取优化设计可以明显降低胎圈部位裂口风险，避免轮胎的早期失效，延长轮胎的使用寿命。 |
| 英文摘要: |
| Based on the finite element analysis software，the bead crack of 24.00R35 all-steel off-the-road radial tire was simulated and analyzed，the mechanism of bead crack was analyzed，and the bead contour design was optimized combined with the analysis results，and the finished tires was trial produced for verification.The results showed that，the design of transition arc and the height of waterproof line had great influence on the force on the bead.When the bead side was designed with a vertical line，and the bead contour and rim curve did not interfere with each other，the contact pressure and shear stress between the bead and the rim were relatively small.Proper waterproof line height could reduce the contact pressure and shear stress at the tire waterproof line position.The adoption of optimized design could significantly reduce the risk of bead cracking，avoid early tire failure，extend the service life of tires. |
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