工程机械子午线轮胎胎圈部位钢丝补强层耐久性能的仿真研究  

Simulation Study on Durability of Steel Reinforcement Layer at Bead Area of Off-The-Road Radial Tire

作　　者：郭永芳 瞿安业 夏效坤 谢仕强 印海建 刘云启 GUO Yongfang;QU Anye;XIA Xiaokun;XIE Shiqiang;YIN Haijian;LIU Yunqi(Techking(Qingdao)Special Tire Technology Research and Development Co.,Ltd,Qingdao 266100,China)

机构地区：[1]泰凯英(青岛)专用轮胎技术研究开发有限公司,山东青岛266100

出　　处：《轮胎工业》2024年第6期330-333,共4页Tire Industry

摘　　要：以18.00R25工程机械子午线轮胎为例,分析胎圈部位钢丝补强层内端点开裂原因,优化针对该损伤形式的轮胎有限元仿真模型,并进行胎圈部位钢丝补强层耐久性能的仿真研究。结果表明:损伤点附近钢丝补强层和胎体帘布层厚度方向划分3层网格,可准确模拟该位置在负荷下局部应变状态;采用优化后仿真模型得到的胎圈部位钢丝补强层端部与胎体帘布层间橡胶材料在圆周方向的剪应变集中状况与轮胎损伤位置和损伤形式高度吻合;以损伤点附近橡胶材料单元圆周方向剪应变幅值作为评价钢丝补强端部耐久性能的合理指标,可以辅助轮胎优选设计方案。Taking the 18.00R25 off-the-road radial tire as an example,the causes of cracking at the inner end of steel reinforcement layer at bead area were analyzed,the finite element simulation model of the tire for this damage form was optimized,and the simulation research on the durability of steel reinforcement layer at bead area was conducted.The results showed that by dividing the thickness directions of the steel reinforcement layer and the carcass cord layer near the damage points into three layers of mesh,the local strain state at that location under load could be accurately simulated.The obtained shear strain concentration states in the circumferential direction of the rubber material between the steel reinforcement layer end and the carcass cord layer by using an optimized simulation model was highly consistent with the location and form of the tire damage.The circumferential shear strain amplitude of rubber material units near the damage point served as a reasonable indicator to evaluate the durability of the steel reinforcement layer end,which was helpful for optimizing design schemes of the tire.

关 键 词：工程机械子午线轮胎 钢丝补强层 耐久性能 有限元分析 

分 类 号：TQ336.11[化学工程—橡胶工业]