高速轮胎爆胎失效的驻波机理与试验研究

项目名称： 高速轮胎爆胎失效的驻波机理与试验研究

项目编号： No.51475399

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 机械、仪表工业

项目作者： 周水庭

作者单位： 厦门理工学院

项目金额： 83万元

中文摘要： 汽车轮胎爆胎是道路交通事故的三大杀手之一，其失效过程是大变形条件下的非线性瞬态问题。轮胎转鼓试验中，目前主要采用简单轮胎模型进行仿真和高速摄像-数据采集传统的测试方法。项目拟采用带花纹的详实轮胎模型提高爆胎临界速度仿真预测的精度，并采用频率迟滞加激光测距的方法实现临界速度的非接触式测量。运用非线性粘弹性有限元理论，研究带花纹子午线轮胎爆胎失效过程中的驻波形变规律和驻波机理，建立临界速度的精确数学模型；基于任意的拉格朗日-欧拉描述的有限元法，研究子午线轮胎在大变形条件下的应力应变场、构形结构场、温度场的多物理场耦合问题，预测爆胎失效过程中损坏的产生和演化过程；设计新型轮胎驻波测试系统，解决轮胎形变的在线高速精密测量问题；通过物理试验研究轮胎花纹、材料、胎压、载荷、温度对临界速度及轮胎失效损坏的影响及其规律，并验证临界速度数值计算的可靠性。研究成果可为安全轮胎的设计和智能监控提供理论依据。

中文关键词： 高速轮胎；爆胎；驻波；临界速度；频率迟滞法

英文摘要： Tire blow-out is one of three killers in road traffic accidents. The failure process is a nonlinear transient problem under the condition of large deformation. In the drum tests of tire, nowadays it mainly adopted a simple tire model simulation and the traditional drum test methods using 'High-speed camera -Data collection'. The project intends to adopt a 3-D patterned detailed tire model to improve accuracy of simulation and forecast about tire critical speed. Using frequency hysteresis plus laser ranging drum test methods to achieve critical speed non-contact measurement. The project uses the nonlinear viscoelastic finite element theory to study with the standing wave deformation law and mechanism on radial tire blow-out failure process and to establish accurate mathematical model of the critical speed. Researching the multi-physics fields coupled problem of stress-strain field, configuration structure field and temperature field under the large deformation condition based on arbitrary Lagrange-Euler description the finite element method. It predicts the course and evolutionary process of tire blow-out failure. Designing a new online accurate high-speed test system is to solve the problem of the tire deformation measurement during standing wave. The project researches the impact and law on the critical speed under different kinds of the patterns, materials, tire pressure, loads and temperature through physical experiment and verifies the reliability of the critical speed of numerical calculation. The results of this research can provide the theoretical basis for designing and intelligent monitoring of safety tire.

英文关键词： High-speed tire;Tire blow-out;Standing wave;Critical speed;Frequency hysteresis method