Wheel tread wear leads to change of the wheel profile and rolling diameter, which influences the dynamic behaviors of railway vehicles seriously.
车轮踏面磨耗导致车轮外形改变，使其滚动圆直径产生偏差，对车辆系统的动力学特性影响较大。
It is significant to improve the inspection level by using machine vision measurement technology in on-line automatic inspection for train wheel flange and tread wear rates.
采用机器视觉测量技术实现对车轮轮缘踏面磨损的在线自动检测，对提高我国铁路车轮轮对的检测水平，具有重要的现实意义。
The wheel flange wear is caused by the flange action of the wheel and rail, whereas the double-groove wear on tread may be mainly caused by the break shoe.
轮缘磨耗主要是轮轨相互作用的结果，而踏面上的凹槽磨耗可能主要由闸瓦制动引起。
Optimizing the tyre tread profile is very significant because the tread profile has a big effect on wear resistance performance of vehicle wheel tyre.
胎面轮廓形状对轮胎的耐磨耗性能影响很大，因此对其进行优化很有意义。针对胎面轮廓形状比较复杂的特点，文中采用多个变量来定义胎面轮廓。
Optimizing the tyre tread profile is very significant because the tread profile has a big effect on wear resistance performance of vehicle wheel tyre.
胎面轮廓形状对轮胎的耐磨耗性能影响很大，因此对其进行优化很有意义。针对胎面轮廓形状比较复杂的特点，文中采用多个变量来定义胎面轮廓。
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