A Novel Theory: Ellipse of Grip Force

Details

• Personal Author:
  Dong, Ren G. ; Welcome, Dan E. ; Warren, Chris ; Dong, Chun L. ; McDowell, Thomas W. ; Wu, John Z.
• Corporate Authors:
  National Institute for Occupational Safety and Health
• Description:
  Hand forces are important factors for risk assessment of hand-arm vibration syndrome (HAVS). Grip force is one of the most important force components in the operation of powered hand tools. A considerable number of studies on grip force have been reported. It is well known that the grip force applied on a cylindrical handle is not uniformly distributed on each axis across the center of the handle cross-section? Therefore, maximum and minimum orientations of grip force exist around the handle. Such orientations have not been clearly identified. In a recently proposed international standard (ISO/CD 15230, 2005), it is stated that "the direction of the main gripping force is generally parallel to the z-axis defined in ISO 8727." This assertion is questionable, and further examinations are required. The objective of this study was to establish a fundamental theory on the distribution of the grip force around cylindrical handles.
• Subjects:
  Accidents, Occupational Age Factors Occupational Exposure Occupational Health Safety Sex Characteristics Toxicology
• Keywords:
  Biodynamics Biomechanical-modeling Biomechanics Ergonomics Power-tools Vibration Vibration-exposure
• Source:
  Proceedings of the first American conference on human vibration, June 5-7, 2006, Morgantown, West Virginia. Dong R, Krajnak K, Wirth O, Wu J, eds. Morgantown: WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2006-140, 2006 Jun; :142-143
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Conference Publications
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  142-143
• NIOSHTIC Number:
  nn:20030973
• Citation:
  Proceedings of the first American conference on human vibration, June 5-7, 2006, Morgantown, West Virginia. Dong, Ren G., Krajnak K, Wirth O, Wu J, eds. Morgantown: WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2006-140, 2006 Jun; :142-143
• Editor(s):
  Dong, Ren G. ; Krajnak K ; Wirth O ; Wu J
• Federal Fiscal Year:
  2006
• NORA Priority Area:
  Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:42e79ab6b052d2342589ec86ba612ed692396699e074604d06826ccdf8e0ecc68614306e2aca2b51ad460ae62077baea731b884454710ba0d11b908cbe88f33e
• Download URL:
  https://stacks.cdc.gov/view/cdc/8451/cdc_8451_DS1.pdf
• File Type:
  [PDF - 273.30 KB ]