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转速对一系列人造草皮表面系统的旋转牵引力的影响。

The effect of rotational velocity on rotational traction across a range of artificial turf surface systems.

作者信息

McGowan Harry, Fleming Paul, Pak Jae-Hwi, James David, Forrester Steph

机构信息

School of Architecture, Building and Civil Engineering, Loughborough University, Loughborough, UK.

Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough, UK.

出版信息

Sci Rep. 2023 Dec 7;13(1):21631. doi: 10.1038/s41598-023-48134-0.

DOI:10.1038/s41598-023-48134-0
PMID:38062095
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10703925/
Abstract

Mechanical testing by sporting governing bodies ensures artificial turf surfaces conform with performance standards. Rotational traction is measured using two equivalent devices: a rotational traction tester (RTT) and a lightweight rotational traction tester (LRTT). The devices differ in target rotational velocity; 72 deg/s for the RTT and 30 deg/s for the LRTT. The purpose of this study was to investigate the influence of rotational velocity on peak torque during rotational traction testing. An automated rotational traction tester examined nine rotational velocities between 10 and 210 deg/s, and ten artificial turf surface systems with a range of performance infill materials, infill depths and carpet specifications. Rotations at 10 deg/s produced the lowest peak torques on nine of the ten surfaces. Infill materials with intrinsic viscoelastic properties produced significantly higher peak torques at higher rotational velocities, whereas less elastic infill materials saw no significant increase in peak torque. A mean difference in peak torque of 2.6 Nm was found between the target velocities of the RTT and LRTT. The results support the synchronisation of target velocities for the RTT and LRTT. During standards testing, trials completed below a particular velocity should be repeated to negate velocity effects on peak torque.

摘要

体育管理机构进行的机械测试可确保人造草皮表面符合性能标准。旋转牵引力通过两种等效设备进行测量：旋转牵引力测试仪（RTT）和轻型旋转牵引力测试仪（LRTT）。这两种设备的目标旋转速度不同；RTT为72度/秒，LRTT为30度/秒。本研究的目的是调查旋转速度对旋转牵引力测试过程中峰值扭矩的影响。一台自动旋转牵引力测试仪检测了10至210度/秒之间的9种旋转速度，以及十种具有一系列性能填充材料、填充深度和地毯规格的人造草皮表面系统。在十种表面中的九种表面上，10度/秒的旋转产生的峰值扭矩最低。具有固有粘弹性的填充材料在较高旋转速度下产生的峰值扭矩显著更高，而弹性较小的填充材料的峰值扭矩没有显著增加。在RTT和LRTT的目标速度之间发现峰值扭矩平均相差2.6牛米。结果支持RTT和LRTT目标速度的同步。在标准测试期间，应重复在特定速度以下完成的试验，以消除速度对峰值扭矩的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/4f61b15b0b0c/41598_2023_48134_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/7fdec9904f53/41598_2023_48134_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/0299c92d74ff/41598_2023_48134_Fig2_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/46813c957f80/41598_2023_48134_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/68c0103198bb/41598_2023_48134_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/535c34238e29/41598_2023_48134_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/4f61b15b0b0c/41598_2023_48134_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/7fdec9904f53/41598_2023_48134_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/0299c92d74ff/41598_2023_48134_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/25c1368eeeef/41598_2023_48134_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/46813c957f80/41598_2023_48134_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/68c0103198bb/41598_2023_48134_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/535c34238e29/41598_2023_48134_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4272/10703925/4f61b15b0b0c/41598_2023_48134_Fig7_HTML.jpg

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