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Modeling of biodynamic responses distributed at the fingers and the palm of the human hand-arm system.

Authors
Dong-RG; Dong-JH; Wu-JZ; Rakhejab-S
Source
J Biomech 2007 Jan; 40(10):2335-2340
NIOSHTIC No.
20032509
Abstract
The objective of this study is to develop analytical models for simulating driving-point biodynamic responses distributed at the fingers and palm of the hand under vibration along the forearm direction (zh-axis). Two different clamp-like model structures are formulated to analyze the distributed responses at the fingers-handle and palm-handle interfaces, as opposed to the single driving point invariably considered in the reported models. The parameters of the proposed four- and five degrees-of-freedom models are identified through minimization of an rms error function of the model and measured responses under different hand actions, namely, fingers pull, push only, grip only, and combined push and grip. The results show that the responses predicted from both models agree reasonably well with the measured data in terms of distributed as well total impedance magnitude and phase. The variations in the identified model parameters under different hand actions are further discussed in view of the biological system behavior. The proposed models are considered to serve as useful tools for design and assessment of vibration isolation methods, and for developing a hand-arm simulator for vibration analysis of power tools.
Keywords
Analytical-processes; Analytical-methods; Analytical-models; Statistical-analysis; Biomechanical-modeling; Biological-systems; Vibration-effects; Vibration-exposure; Biomechanics
Contact
Ren G. Dong, Engineering and Control Technology Branch, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505
CODEN
JBMCB5
Publication Date
20070101
Document Type
Journal Article
Email Address
rkd6@cdc.gov
Fiscal Year
2007
NTIS Accession No.
NTIS Price
Issue of Publication
10
ISSN
0021-9290
NIOSH Division
HELD
Source Name
Journal of Biomechanics
State
OH; NC; NM
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