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The effects of surface roughness and contaminants on the dynamic friction between porcelain tile and vulcanized rubber

机译：表面粗糙度和污染物对瓷砖与硫化橡胶之间动摩擦的影响

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摘要

Surface roughness affects friction, but it is not clear which surface roughness characteristics are better correlated with friction. The dynamic friction between porcelain tiles and a commonly used shoe sole material, vulcanized rubber, under six test conditions with four different mixtures of glycerol and water as contaminants at the interface was correlated with the surface parameters generated from the tile surfaces. The results showed that dynamic friction decreased as the glycerol content in the contaminant and the interface sliding speed were increased due to the lubrication effect. The correlation coefficient between the surface roughness parameters and the measured friction was affected by the glycerol ratios. However, the skewness of surface heights (R{sub}(sk)), the arithmetical average and root mean square of surface slope (Δ{sub}a and Δ{sub}q) and the kernel roughness depth (R{sub}k) had the highest correlation with dynamic friction.
机译：表面粗糙度会影响摩擦，但尚不清楚哪些表面粗糙度特性与摩擦更好地相关。在六种测试条件下，甘油和水的四种不同混合物作为污染物在界面处，瓷砖与常用的鞋底材料（硫化橡胶）之间的动摩擦与从瓷砖表面产生的表面参数相关。结果表明，由于润滑作用，随着污染物中甘油含量的增加和界面滑动速度的增加，动摩擦减小。表面粗糙度参数和测得的摩擦之间的相关系数受甘油比的影响。但是，表面高度的偏斜度（R {sub}（sk）），表面斜率的算术平均值和均方根（Δ{sub} a和Δ{sub} q）和籽粒粗糙度深度（R {sub} k）与动摩擦的相关性最高。

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