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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Physical modelling of tire wear for the analysis of the influence of thermal and frictional effects on vehicle performance
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Physical modelling of tire wear for the analysis of the influence of thermal and frictional effects on vehicle performance

机译：轮胎磨损的物理模型，用于分析热和摩擦效应对车辆性能的影响

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摘要

The tire and vehicle setup definition, able to optimise grip performance and thermal working conditions, can make the real difference as for motorsport racing teams, used to deal with relevant wear and degradation phenomena, as for tire makers, requesting for design solutions aimed to obtain enduring and stable tread characteristics, as finally for the development of safety systems, conceived in order to maximise road friction, both for worn and unworn tires. The activity discussed in the paper deals with the analysis of the effects that tire wear induces in vehicle performance, in particular as concerns the consequences that tread removal has on thermal and frictional tire behaviour. The physical modelling of complex tire-road interaction phenomena and the employment of specific simulation tools developed by the Vehicle Dynamics UniNa research group allow to predict the tire temperature local distribution by means of TRT model and the adhesive and hysteretic components of friction, thanks to GrETA model. The cooperation between the cited instruments enables the user to study the modifications that a reduced tread thickness, and consequently a decreased SEL (Strain Energy Loss) and dissipative tread volume, cause on the overall vehicle dynamic performance.
机译：能够优化抓地性能和热工况的轮胎和车辆设置定义，可以使赛车运动团队真正受益匪浅，用于解决相关的磨损和退化现象，对于轮胎制造商，则要求设计解决方案以求获得持久且稳定的胎面特性，以及最终为开发安全系统而构想的目的，是为了使磨损和未磨损的轮胎均获得最大的路面摩擦力。本文讨论的活动旨在分析轮胎磨损对车辆性能的影响，特别是涉及胎面去除对轮胎热摩擦性能的影响。复杂的轮胎-道路相互作用现象的物理模型以及由Vehicle Dynamics UniNa研究小组开发的特定仿真工具的使用，使得能够借助TRT模型以及摩擦的粘滞性和滞后性成分来预测轮胎温度的局部分布。模型。所引用的仪器之间的协作使用户能够研究胎面厚度减小，进而导致SEL（应变能损失）和耗散胎面体积减小对整个车辆动态性能造成的影响。

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