基于广义Maxwell模型的轮胎橡胶动态压缩性能分析  

Analysis on Dynamic Compression Performance of Tire Rubber Based on Generalized Maxwell Model

作　　者：智杰颖 路洪丽[2] 王海庆[1] 王慎平[2] 林文俊[2] 乔从德[3] 贾玉玺[1] 

机构地区：[1]山东大学材料科学与工程学院,济南250061 [2]山东玲珑轮胎股份有限公司,招远265400 [3]齐鲁工业大学材料科学与工程学院,济南250300

出　　处：《高分子学报》2016年第7期887-894,共8页Acta Polymerica Sinica

基　　金：国家重点基础研究发展计划(973计划;项目号2012CB821505);山东省自然科学基金(基金号ZR2015QZ05)资助项目

摘　　要：为了定量分析轮胎胎面胶动态力学性能及能量损耗,建立了基于广义Maxwell模型的黏弹性本构关系,根据胎面胶在各个温度下恒温动态压缩时的储能模量与损耗模量的频率扫描实验数据并采用非线性回归法求解误差函数的极小值的方法,确定各个温度下的黏弹性广义Maxwell模型参数.利用ABAQUS/Standard有限元软件数值模拟胎面胶动态压缩过程,得到不同温度下胎面胶的损耗角正切随激振频率的变化规律,并与实验结果进行对比分析.结果表明,黏弹性广义Maxwell模型及其参数的获取方法可以准确地用于胎面胶动态力学性能分析.在此基础上,定量预测了在不同温度及频率下每一循环载荷周期中胎面胶的应力-应变迟滞回线以及单位体积胶料的能量损耗,分析显示随频率增大,单位体积胶料的能量损耗逐渐增大,并且随着温度降低,能量损耗增大的幅度加大.In order to analyze the dynamic mechanical properties and hysteresis loss of the tread rubber quantitatively, a viscoelastic constitutive equation based on generalized Maxwell model was developed, the model parameters of storage modulus and loss modulus for each temperature were determined according to the frequency sweeping experimental data under dynamic compression conditions, and an algorithm of non-linear regression was proposed and numerically implemented to get the minimum of error function. The finite element code ABAQUS/standard was used to simulate the process of tread rubber dynamic compression,which reflected the change of loss tangent at the different vibration frequencies, and then the simulated results were compared with the experimental data. It was proved that the viscoelastic constitutive model and the parameters identification method could be used to analyze the tread rubber＇s dynamic mechanical properties accurately. On this basis, the quantitative prediction of the tread rubber stress-strain hysteresis loop and the energy dissipation in a full deformation cycle under different temperatures and frequencies was carried out,the results showed that the energy dissipation of the unit volume increased gradually with the increase of frequency, and the increasing magnitude of the energy dissipation was scale-up with the decrease of temperature.

关 键 词：胎面胶 广义Maxwell模型 动态模量 参数拟合 能量损耗 

分 类 号：TQ336.1[化学工程—橡胶工业]