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| 提高轻型载重子午线轮胎老化耐久性能的结构优化设计 |
| Structure Optimizing Design to Improve Aging Durability of Light Truck and Bus Radial Tire |
| Received:December 10, 2019 Revised:December 20, 2019 |
| DOI：10.12135/j.issn.1006-8171.2020.10.0588 |
| 中文关键词: 轻型载重子午线轮胎；老化；耐久性能；结构设计 |
| 英文关键词: light truck and bus radial tire；age；durability；structure design |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | YU Benyi* | Giti Tire（CHINA） R&D Center | 190751105@qq.com | | XING Cheng | Giti Tire（CHINA） R&D Center | | | CAI Yingying | Giti Tire（CHINA） R&D Center | |
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| 中文摘要: |
| 分析轮胎老化机理，通过优化轻型载重子午线轮胎的结构设计提高其老化耐久性能，并试制成品轮胎进行试验验证。通过采取增大气密层厚度、调整胎圈区域各部件的应力分布以及增大带束层边胶厚度等优化措施，可以大幅提高轮胎的老化耐久性能，同时轮胎的外缘尺寸、强度性能、脱圈阻力和高速性能均能满足国家标准和企业标准要求。 |
| 英文摘要: |
| The tire aging mechanism was analyzed，the structure design of the light truck and bus radial tire was optimized to improve its aging durability，and the finished tire was tested and verified.By adopting optimization measures such as increasing the thickness of the inner liner，adjusting the stress distribution of the components in the bead area，and increasing the thickness of the belt edge rubber，the aging durability of the tire could be greatly improved.At the same time，the inflation peripheral dimension，strength performance，bead unseating resistance and high speed performance of the tire met the requirements of national standards and enterprise standards. |
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