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轮胎帘线的热-力学性能对轮胎的尺寸、形状、操纵性能及其他相关性能具有很大的影响。本研究聚焦于表征聚合物帘线的材料性能,应用有限元分析(FEA)量化这些性能对充气轮胎的影响。用在实验室通过拉伸试验、热收縮测量和蠕变试验获得的一系列热-力学性能来表征包括尼龙和聚酯在内的各种轮胎帘线材料。在获得这些实验室实验结果之前,用于本研究的帘线经过热-力学处理,以便模拟硫化和轮胎使用条件的影响。用从这些实验测得的性能数据作为轮胎有限元分析的输入数据,根据FEA模型预测轮胎尺寸、形状、带负载的轮胎印痕、压力和帘线的负荷,并将预测值与实验轮胎的测量值比较。通过比较表明,在测量值与用有限元分析的预测值之间具有良好的一致性。因此,将来充气轮胎的FEA研究应采用本研究开发的表征轮胎帘线材料的技术。
Tire cord thermal - mechanical properties of the tire size, shape, handling and other related performance has a great impact. This study focuses on characterizing the material properties of polymer cords. The finite element analysis (FEA) is used to quantify the effects of these properties on pneumatic tires. The various tire cord materials, including nylon and polyester, are characterized by a series of thermomechanical properties obtained in the laboratory through tensile testing, heat shrinkage measurement and creep testing. Prior to obtaining these laboratory results, the cords used in this study were subjected to thermomechanical treatment to simulate the effects of vulcanization and tire service conditions. Using the performance data measured from these experiments as input data for the finite element analysis of the tire, the tire size, shape, tire footprint with load, pressure and cord load are predicted from the FEA model and the predicted value is compared with the measured values of the experimental tire Compare The comparison shows that there is a good agreement between the measured values and the predicted values of the finite element analysis. Therefore, in the future, FEA research on pneumatic tires should adopt the technology of characterization of tire cord materials developed in this study.