| 12. 00R20载重轮胎用圆形钢丝圈的研究 |
| Study on Circular Wire Ring for 12.00R20 Truck and Bus Tire |
| 投稿时间：2021-12-10 修订日期：2021-12-10 |
| DOI：10.12136/j.issn.1000-890X.2022.07.0499 |
| 中文关键词: 圆形钢丝圈 六角形钢丝圈 载重轮胎 应力 滚动阻力 耐久性能 |
| 英文关键词: circular wire ring hexagonal wire ring truck and bus tire stress rolling resistance durability |
| 基金项目: |
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| 中文摘要: |
| 研究圆形钢丝圈[1×5.5＋（10＋17＋23）×2.2]在12.00R20载重轮胎中的应用，并与六角形钢丝圈（7-8-9-10-11-12-11-10-9-8-7）进行对比。结果表明：六角形钢丝圈主要靠中心钢丝承受拉应力和压应力，圆形钢丝圈每根钢丝均匀承受拉应力和压应力，六角形钢丝圈的Mises拉应力较大，Mises压应力较小，圆形钢丝圈受压易产生钢丝散股问题；圆形钢丝圈对称承受弯曲应力，六角形钢丝圈的Mises弯曲应力较大；顺时针旋转时圆形钢丝圈的钢丝有拉直的趋势，逆时针旋转时圆形钢丝圈的钢丝有收紧的趋势，六角形钢丝圈的Mises旋转应力大于圆形钢丝圈；圆形钢丝圈轮胎的耐久性能更好，且圆形钢丝圈有助于减小轮胎质量、降低滚动阻力。 |
| 英文摘要: |
| The application of circular wire ring [1×5. 5＋（10＋17＋23）×2. 2] in 12. 00R20 truck and bus tire was studied，and compared with the hexagonal wire ring（7-8-9-10-11-12-11-10-9-8-7）.The results showed that the hexagonal wire ring mainly carried the tensile stress and compressive stress by the central wire，the circular wire ring distributed the tensile stress and compressive stress evenly on each wire，the Mises tensile stress of the hexagonal wire ring was larger，the Mises compressive stress of the hexagonal wire ring was smaller，and the circular wire ring was prone to having the problem of loose strand under compression.The circular wire ring supported bending stress symmetrically，and the Mises bending stress of the hexagonal wire ring was larger.When rotated clockwise，the wire of the circular wire ring tended to straighten，and when rotated counterclockwise，the wire of the circular wire ring tended to tighten.The Mises rotating stress of the hexagonal wire ring was greater than that of the circular wire ring.The tire with the circular wire ring had better durability，and the circular wire ring helped to reduce the tire mass and rolling resistance. |
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