| 复杂胎面花纹轮胎有限元分析及试验研究 |
| Experimental Study and Finite Element Analysis of Tire with Complex Tread Pattern |
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| DOI： |
| 中文关键词: 全钢载重子午线轮胎 复杂胎面花纹 有限元模拟 接地压力分布 |
| 英文关键词: TBR tire complex tread pattern finite element simulation contact pressure distribution |
| 基金项目:国家自然科学基金资助项目（21274072，51151103077）；工业装备结构分析国家重点实验室开放基金资助项目（GZ1213） |
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| 中文摘要: |
| 以11.00R20全钢载重子午线轮胎为研究对象，考虑轮胎材料的物理非线性、几何大变形以及接触非线性等特点，采用Yeoh模型描述橡胶类材料的力学行为，并用Rebar嵌入式Surface单元模拟轮胎钢丝帘线，在Abaqus软件中建立带有复杂胎面花纹的轮胎有限元模型，并验证了模型的可靠性。结果表明：轮胎的垂直刚度随下沉量的增大而逐渐增大，最后趋于恒定值；轮胎接地压力分布在花纹块边缘处较大；数值预测的轮胎接地印痕形状和接地面积与试验结果吻合很好；胎体帘线的周向受力在接地区域呈现中心低边缘高的规律，然后在远离接地区逐渐减小。 |
| 英文摘要: |
| In this study，a finite element model of 11.00R20 truck and bus radial tire with complex tread pattern was established by using Abaqus software.During the finite element analysis the mechanical behavior of rubberlike materials was described by Yeoh model due to nonlinear physical characteristics，large geome-tric deformation and nonlinear contact boundary of the material. Moreover，the steel cord was modeled by embedded surface element with Rebar.Then the reliability of the model was verified by experiments.The re-sults showed that，the vertical stiffness of the tire increased with increase of deflection，and finally closed to a constant value.As for pressure distribution in the contact patch，the larger pressure was located at the edge of the pattern blocks.The footprint shape and area predicted by numerical simulation were in good agreement with experiment results.In the ground-contact area，the circumferential rebar force of carcass was lower in the middle of the footprint compared with that of the outer contact patch，and then the rebar force of carcass gradually decreased away from the ground-contact area. |
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