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在汽车工业产品虚拟开发中建立好的轮胎模型是一个瓶颈问题,需要发展直接利用轮胎模态参数对轮胎特性进行全面模拟的高度解析化的模型。该文在初步建立稳态滚动模型和计算方法,以及对垂直特性计入胎侧非线性刚度模型达到高精度的基础上,又引入花纹阻尼,形成轮胎滚动阻力定量模拟模型,得到在80 km/h推荐速度下滚动阻力系数为0.65%。为进一步表明所建模型及模拟方法的成功,将不同半径转鼓上的模拟结果和ISO 18164推荐的转鼓试验结果与转鼓半径的关系做比较,结果具有良好的一致性。轮胎滚动阻力的模拟结果可指导实践,模型及模拟方法可作为动态模拟的重要基础。
Establishing a good tire model in the virtual development of automotive industry products is a bottleneck and there is a need to develop a highly analytical model that fully models tire behavior directly using tire modality parameters. Based on the initial establishment of the steady-state rolling model and calculation method, and the high-precision calculation of the vertical characteristics into the nonlinear sidewall stiffness model, the article also introduced the pattern damping to form the quantitative simulation model of the rolling resistance of the tire, h Recommended rolling resistance coefficient of 0.65%. In order to further demonstrate the success of the model and the simulation method, the simulation results on different radius drums and the drum test results recommended by ISO 18164 are compared with the drum radius, and the results are in good agreement. Tire rolling resistance simulation results can guide practice, models and simulation methods can be used as an important basis for dynamic simulation.