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A novel theory: ellipse of grip force.

Authors
Dong RG; Welcome DE; Warren C; Dong CL; McDowell TW; Wu JZ
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
NIOSHTIC No.
20030973
Abstract
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.
Keywords
Biodynamics; Biomechanics; Biomechanical-modeling; Vibration-exposure; Vibration; Power-tools; Ergonomics
Publication Date
20060601
Document Type
Conference/Symposia Proceedings
Editors
Dong R; Krajnak K; Wirth O; Wu J
Fiscal Year
2006
NTIS Accession No.
NTIS Price
NIOSH Division
HELD
Priority Area
Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
Source Name
Proceedings of the first American conference on human vibration, June 5-7, 2006, Morgantown, West Virginia
State
WV
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