TFB 22: Rollreibgesetze und deren Parameteridentifikation für gummiartige Materialien

该转移中心的目的是确定描述滚动轮胎干、湿摩擦的界面模型的材料参数。研究方案包括：(1)选择一类具有层次顺序的轮胎与干路面（混凝土或沥青）滚动接触的摩擦方程。(2)在考虑试件不均匀性的基础上，根据实验数据确定材料参数；二维系统的灵敏度分析。(3)分别对橡胶块在直线摩擦试验单元和格罗施磨具试验单元中的应力进行数值分析。(4)通过对三维系统进行完整的摩擦接触分析，对静止滚动轮胎的摩擦模型进行验证。(5)考虑不确定性。(6)选择一类分离粘滞项的摩擦模型；在考虑附加输入参数（例如湿巷）的情况下确定材料参数。

The aim of this transfer centre is the determination of material parameters for interface models describing the dry and wet friction of rolling tires. The research programme includes:(1) Selection of a class of friction equations with hierarchical order for the rolling contact between tires and dry roadway (concrete or asphalt).(2) Identification of the material parameters based on experimental data taking into account the inhomogenities of the specimen; sensitivity analysis for 2D-systems.(3) Numerical stress analysis of rubber blocks in a linear friction test unit and in the Grosch abrader test unit, respectively.(4) Verification of the friction model with selected experimental data for stationary rolling tires by complete friction contact analysis of the 3D-systems.(5) Consideration of uncertainties.(6) Selection of a class of friction models with seperated terms for adhesion and hysteresis; identification of the material parameters under consideration of additional input parameters (e.g. wet roadway).