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| 11R22.5公交专用子午线轮胎的设计及其侧偏特性仿真 |
| Design of 11R22.5 Bus Radial Tire and Simulation of Its Cornering Properties |
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| DOI： |
| 中文关键词: 子午线轮胎；公交轮胎；有限元分析；侧偏特性 |
| 英文关键词: radial tire；bus tire；FEA；cornering properties |
| 基金项目: |
| 中图分类号:U463.341＋3/.6 |
| Author Name | Affiliation | | JIANG Hong-xu | Double Coin Holdings Ltd | | ZHAO Jian-ming | Double Coin Holdings Ltd |
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| 中文摘要: |
| 介绍11R22.5公交专用子午线轮胎的设计及其侧偏特性仿真情况。轮胎外直径和断面宽分别取1 054和280 mm，胎圈着合直径取571.5 mm，采用低噪声RT606胎面花纹；胎体采用3＋8＋13×0.18＋0.15HT钢丝帘线；带束层为4层结构，1#带束层采用3×0.20＋6×0.35HT钢丝帘线，2#和3#带束层采用3＋9＋15×0.22＋0.15钢丝帘线，4#带束层采用5×0.35HI钢丝帘线；采用六角形钢丝圈。有限元分析结果表明，轮胎接地形状接近椭圆，压力分布比较均匀；侧偏角(α)不超过5°时侧向力(Fy)和α呈线性关系，α在10°附近时Fy达到峰值；α为2°～4°时回正力矩(Mz)达到峰值，随着α的进一步增大(Mz迅速减小；轮胎的侧偏特性受轮胎与地面间摩擦系数的影响；侧倾角对Fy影响很小，对Mz影响显著。 |
| 英文摘要: |
| The design of 11R22.5 bus radial tire and simulation of cornering properties were introduced.The tire overall diameter was 1 054 mm，section width was 280 mm，diameter at rim bead seat was 571.5 mm，and RT606 tread pattern with low noise was used.3＋8＋13×0.18＋0.15HT steel cord was used for carcass ply.Four layer belts were applied，in which 3×0.20＋6×0.35HT steel cord was used for 1# belt，3＋9＋15×0.22＋0.15 steel cord for 2# and 3# belts，and 5×0.35HI steel cord for 4# belt.In addition，hexagon bead ring was used.The results of FEA showed that，the footprint shape was approximately ellipse and contact pressure was uniform.When the slip angle (α) was smaller than 5°，the relationship between the lateral force (Fy) and α was linear.When α was around 10°，Fy reached the peak value.When α was 2°～4°，the aligning torque (Mz) reached the peak value，but it decreased quickly as α increasd further.The cornering properties were affected by friction coefficient between the tire and the road.The inclination angle had little influence on Fy，but had significant influence on Mz. |
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