Report of Investigations 9454: Vibration Testing of Off-Road Vehicle Seats

Details

• Journal Article:
  Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, RI 9454
• Personal Author:
  Gagliardi, John C. ; Utt, Walter K.
• Description:
  The U.S. Bureau of Mines, in cooperation with Carter Mining Co., conducted vibration tests of four off-road vehicle seats. The purpose of the tests was to determine which seat provided the best vibration attenuation under laboratory conditions. Laboratory tests were constructed to simulate the mining vibrations environment within the limitations of the test equipment. The acceleration test levels and corresponding response of the seats were low compared to ISO 2631's fatigue-decreased-proficiency time limits. Two of the seats employed mechanical suspensions and two seats employed air suspensions. The seats were tested using a 22,241-N (5,000-lbf) electrodynamic shaker. Mechanical suspension seats were tested with various preload-to-mass ratios (PMR's) and cushion densities. Air suspension seats were tested with various air pressure levels and seat cushion densities. Air suspension seats provided good vibration attenuation if pressurized greater than 552 kPa (80 psi). Mechanical suspension seats' attenuation performance decreased if the PMR exceeded 9.8. Seat cushions of lower density provided less vibration damping. [Description provided by NIOSH]
• Subjects:
  Automobiles Mining Occupational Health Safety Vibration
• Keywords:
  Mining-industry; Mining-equipment; Vibration; Vibration-control; Vibration-effects; Injury-prevention
• Source:
  Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, RI 9454, 1993 Jan; :1-25
• Series:
  Mining Publications   ; NIOSH Numbered Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Minnesota ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  TCRC - Twin Cities Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  31 pdf pages
• NIOSHTIC Number:
  nn:10003270
• NTIS Accession Number:
  PB93-189736
• Federal Fiscal Year:
  1993
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:ed0660d89d4b5c3ef00861e5267084b2afadfc5114d66ab4235539dad5f9424153dd33e6f5b90651d9fedc5d6aba7066f09ee8466442b6cfab6eb41e447342ae
• Download URL:
  https://stacks.cdc.gov/view/cdc/9545/cdc_9545_DS1.pdf
• File Type:
  [PDF - 1.51 MB ]