Effect of Varying the Volume Infill Sand on Synthetic Clay Surfaces in Terms of the Shoe-surface Friction
Effect of Varying the Volume Infill Sand on Synthetic Clay Surfaces in Terms of the Shoe-surface Friction
复制标题
改变合成粘土表面填充砂体积对鞋面摩擦力的影响
DOI：
10.1016/j.proeng.2014.06.149
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Ura D
中科院分区：
文献类型：
--
作者：
Ura D
人造粘土上鞋面摩擦力的研究还不多，但会影响运动员的成绩和受伤风险。本研究的目的是调查不同数量的填充砂对人造红土网球场表面上的鞋-表面摩擦的影响。一个基于实验室的机械试验台被用来测量在鞋表面界面处产生的摩擦力。此外，收集了一组参与者在干燥条件下在同一表面上进行旋转运动的感知，以与机械结果进行比较。研究了具有不同填砂量的表面的由鞋-表面相互作用产生的法向力和摩擦之间的关系。在干燥和潮湿条件下进行机械测试，显示出强烈且显著的差异。结果表明，法向力对静摩擦力和动摩擦力有显著影响。对于较低的填砂量，随着法向载荷的增加，发现干燥条件下表现出最低的峰值静摩擦力和最高的平均动摩擦力。然而，对于较高的填砂量条件下，观察到相反的行为。所有填充砂体积和条件下，峰值摩擦力和平均动摩擦力之间存在强而显著的正线性关系。力学结果与感知数据一致，这表明参与者对沙子填充量的微小变化很敏感。因此，本研究的结果将有助于理解网球运动员对网球场表面的感知反应。为了更好地了解摩擦行为，需要进行进一步的测试，一旦了解了所涉及的机制，就可以修改表面特性以提高性能并降低伤害风险。
The friction developed by the shoe-surface interface on artificial clay has not been widely studied, and can influence player's performance and injury risk. The aim of this research was to investigate the effect of varying the quantity of infill sand on shoe- surface friction on an artificial clay court tennis surface. A laboratory-based mechanical test rig was used to measure the friction force developed at the shoe-surface interface. Additionally, the perception of a group of participants, performing a turning movement on the same surface under dry conditions, was collected in order to compare against the mechanical results. The relationship between the normal force and friction generated by the shoe-surface interaction was examined for surfaces with different sand in-fill volumes. The mechanical testing was performed under dry and wet conditions, showing strong and significant differences. Results indicated that the normal force significantly influenced the static and dynamic frictional forces. For lower sand infill volumes, as normal loading increased, the dry condition was found to exhibit the lowest peak static friction force and highest average dynamic friction force. However, for higher sand infill volume conditions, the opposite behaviour was observed. Strong and significant positive linear relationships were found between peak friction force and average dynamic friction force for all infill sand volumes and conditions. The mechanical results were in agreement with the perception data, which suggests that the participants were sensitive to the small changes in sand infill volumes.The findings of this study will therefore aid the understanding of tennis players’ perceived response to a tennis court surface. In order to get a better understanding of friction behaviour, further testing needs to be performed, and once the mechanisms involved are understood, surface properties could be modified to increase performance and reduce injury risk.