Hemler Sarah L, Charbonneau Danielle N, Beschorner Kurt E
Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA, USA.
Tribol Int. 2020 May;145. doi: 10.1016/j.triboint.2020.106161. Epub 2020 Jan 8.
Slips and falls are a leading cause of injuries in the workplace. The risk of slipping increases as shoe tread wears. Knowledge of the mechanics relating shoe wear to slip risk is needed to develop fall-prevention strategies. This research applies a rectangular, tapered-wedge bearing solution to worn shoes and compares the results to experimentally measured under-shoe fluid pressure results. Changes in the size of the shoe outsole worn region and fluid dispersion capabilities were recorded for four, slip-resistant shoes which were systematically abraded. The film thickness predicted by the solution correlated well with the measured force supported by the fluid. The results provide support that the tapered-wedge solution can be used to assess slip risk in worn shoes.
滑倒和跌倒在工作场所是导致受伤的主要原因之一。随着鞋底磨损，滑倒风险会增加。为了制定预防跌倒策略，需要了解将鞋底磨损与滑倒风险相关联的力学原理。本研究将一种矩形、楔形轴承解决方案应用于磨损的鞋子，并将结果与实验测量的鞋底流体压力结果进行比较。对四双防滑鞋进行系统磨损，并记录鞋底磨损区域大小的变化和流体分散能力。该解决方案预测的膜厚与流体支撑的测量力相关性良好。结果支持楔形解决方案可用于评估磨损鞋子的滑倒风险。
