PMID: 16100925Aug 17, 2005Paper

Estimation of biodynamic forces distributed on the fingers and the palm exposed to vibration

Industrial Health
Ren G DongJohn Z Wu

Abstract

The hand-tool coupling force in the operation of a vibrating tool is generally composed of applied force (AF) and biodynamic force (BF). There is wide interest in quantifying the coupling force. The objectives of this study are to develop an effective method for estimating the BF and to investigate its fundamental characteristics. Using the biodynamic response of the hand-arm system, such as apparent mass or mechanical impedance, and the acceleration that can be measured on vibrating tools, this study proposed an indirect method for the BF estimation. The BFs distributed on the fingers and the palm of the hand along the forearm direction (z(h)-axis) in the operations of eighteen types of tool were estimated and used to identify the distributed BF characteristics. The results indicate that the BFs depend on both the tool vibration spectrum and the biodynamic properties of the hand-arm system. The dominant BF frequency component is usually at the same frequency as the dominant vibration frequency of each tool. The BF distributed on the palm (2-98 N) is much higher than that distributed on the fingers (1-30 N) at frequencies less than 100 Hz, but these biodynamic forces (2-22 N) are comparable at higher frequencies. The palm BF on...Continue Reading

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Citations

Aug 17, 2005·Industrial Health·Ren G DongDaniel E Welcome
Aug 17, 2005·Industrial Health·Ren G DongJohn Z Wu
Nov 28, 2017·Journal of Toxicology and Environmental Health. Part a·Kristine KrajnakStacey Waugh
Dec 26, 2018·Journal of Toxicology and Environmental Health. Part B, Critical Reviews·Kristine Krajnak
Jul 13, 2012·Journal of Occupational and Environmental Medicine·Kristine KrajnakMichael L Kashon
Aug 21, 2021·Vibration·Ren G DongKristine Krajnak

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