Energy dissipation in human hand–arm exposed to random vibration
作者:
J. S. Cundiff,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1976)
卷期:
Volume 59,
issue 1
页码: 212-214
ISSN:0001-4966
年代: 1976
DOI:10.1121/1.380850
出版商: Acoustical Society of America
关键词: 4045
数据来源: AIP
摘要:
The problem of correlating the incidence of Raynaud’s phenomenon with exposure to a given vibration environment is well known. It is hypothesized that energy absorbed and dissipated in the hand is energy which can change hand tissue in some manner, and thus may cause injury. Absorbed power is therefore suggested as a parameter which has potential for evaluation of individual worker susceptibility to vibration injury. The arm is represented as a foundation with finite mechanical impedance for the hand model. The hand model parameters, obtainable from experimental impedance measurements on individual subjects, are assumed to be, in general, frequency dependent. The total impedance expression for the system is generalized for the case where the hand is gripping a vibrating handle covered with a layer of viscoelastic material. An expression for absorbed power in this composite system exposed to random vibration is presented.Subject Classification: [43]40.45.
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