Coefficient of Friction Testing Parameters Influence the Prediction of Human Slips

Details

• Personal Author:
  Beschorner KE ; Cham R ; Iraqi A ; Redfern MS
• Description:
  Measuring the available coefficient of friction (ACOF) of a shoe-floor interface is influenced by the choice of normal force, shoe-floor angle and sliding speed. The purpose of this study was to quantify the quality of slip prediction models based on ACOF values measured across different testing conditions. A dynamic ACOF measurement device that tests entire footwear specimens (Portable Slip Simulator) was used. The ACOF was measured for nine different footwear-contaminant combinations with two levels of normal force, sliding speed and shoe-floor angle. These footwear-contaminant combinations were also used in human gait studies to quantify the required coefficient of friction (RCOF) and slip outcomes. The results showed that test conditions significantly influenced ACOF. The condition that best predicted slip risk during the gait studies was 250 N normal force, 17degree shoe-floor angle, 0.5 m/s sliding speed. These findings can inform footwear slip-resistance measurement methods to improve design and prevent slips. [Description provided by NIOSH]
• Subjects:
  Accidental Falls Accident Prevention Accidents Accidents, Occupational Environmental Exposure Men Occupational Health Safety Women
• Keywords:
  Accident Prevention Author Keywords: Coefficient Of Friction Exposure Levels Floors Foot Protection Footwear Force Humans Models Slip And Fall Accidents Slips Slips, Trips, And Falls STF Walking Surfaces

  More +
• ISSN:
  0003-6870
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  118-126
• Volume:
  70
• NIOSHTIC Number:
  nn:20051690
• Citation:
  Appl Ergon 2018 Jul; 70:118-126
• Contact Point Address:
  Kurt E. Beschorner, Department of Bioengineering, University of Pittsburgh, Benedum Engineering Hall #302, 3700 O'Hara St., Pittsburgh, PA 15261
• Email:
  beschorn@pitt.edu
• Federal Fiscal Year:
  2018
• Performing Organization:
  University of Pittsburgh at Pittsburgh
• Peer Reviewed:
  True
• Start Date:
  20100801
• Source Full Name:
  Applied Ergonomics
• End Date:
  20140731
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d4ec67e742360e54b031564118105e7dcc49d454ddca96d107e2975b0a050acdd06e377ec5cd101756bbef24c9765be7942e08cbff274f15d927d818587d3e27
• Download URL:
  https://stacks.cdc.gov/view/cdc/211509/cdc_211509_DS1.pdf
• File Type:
  [PDF - 3.09 MB ]