整车强化耐久试验中轮胎磨损的机理分析

Mechanism Analysis of Tyre Wear in Strengthened Endurance Test of Vehicle

针对麦弗逊结构前悬架的车辆前轮在强化耐久路面考核中出现内侧胎面磨损及外侧胎肩磨损现象,文章通过对轮胎自身因素、四轮定位的稳定性以及悬架K&C特性展开分析。同时,借助于实车耐久工况载荷谱采集分析数据,得出该悬架结构的前轮在强化耐久工况下出现异常磨损的机理,并通过轮胎磨损专项试验验证,阐述了此工况下前轮出现内侧磨损趋势的合理性,为同类车型强化耐久工况的轮胎磨损验证提供理论依据及分析方法。

In view of the phenomenon of inner tread wear and outer shoulder wear of the front wheel of McPherson structure front suspension in the assessment of strengthened durable pavement,the paper analyzes the tyre factors,the stability of four-wheel positioning and the K&C characteristics of suspension.At the same time,with the aid of analytical data collected by means of load spectrum in real vehicle endurance condition,it is concluded that the mechanism of abnormal wear of the front wheel of the suspension structure appears under the condition of enhanced durability.And through the verification of special tire wear test,the rationality of the front wheel inner wear trend under this working condition is expounded,which provides a theoretical basis and analytical method for tire wear verification under the condition of enhanced endurance of similar vehicles.