旋转速度对一系列人工草皮表面系统的旋转引力的影响
Harry McGowan1, Paul Fleming2, Jae-Hwi Pak3
1School of Architecture, Building and Civil Engineering, Loughborough University, Loughborough, UK. h.mcgowan@lboro.ac.uk.
Scientific reports
|December 7, 2023
概括
旋转速度在人工草皮测试中显著影响峰值扭矩. 标准化测试要求同步旋转引测试仪 (RTT) 和轻型旋转引测试仪 (LRTT) 的速度,以确保一致的结果.
科学领域:
- 运动工程 运动工程
- 材料科学 材料科学 材料科学
背景情况:
- 体育机构要求对人工草性能进行机械测试.
- 旋转引力是一个关键的指标,由旋转引力测试仪 (RTT) 和轻量旋转引力测试仪 (LRTT) 测量.
- 当前的RTT和LRTT设备使用不同的目标旋转速度 (分别为72度/秒和30度/秒).
研究的目的:
- 为了研究旋转速度如何影响在人工草皮引力测试期间的峰值扭矩.
- 为了确定是否需要标准化速度来准确和可比的旋转引测量.
主要方法:
- 一个自动旋转引测试仪被用来评估9个速度 (10210°/s) 的峰值扭矩.
- 测试了10个人工草系统,使用不同的填充材料,深度和地毯规格.
- 分析了与旋转速度和充填材料特性相关的峰值扭矩测量.
主要成果:
- 对于大多数表面,峰值扭矩在10度/秒时是最低的.
- 粘弹性填充材料在增加速度时显示出明显更高的峰值扭矩.
- 不那么弹性的充填材料没有表现出高峰扭矩的显著速度依赖的增加.
- 在RTT和LRTT目标速度之间观察到2.6Nm的平均峰值扭矩差异.
结论:
- 旋转速度是影响人工草皮测试峰值扭矩的关键因素.
- 建议对RTT和LRTT的目标速度进行同步,以进行一致的标准测试.
- 在一定速度值以下的测试可能会产生不代表的峰值扭矩值,因此应重复.
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