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Estimation of tool-specific isolation performance of antivibration gloves.

Authors
Rakheja-S; Dong-R; Welcome-D; Schopper-AW
Source
Int J Ind Ergon 2002 Aug; 30(2):71-87
NIOSHTIC No.
20023522
Abstract
A methodology to estimate vibration isolation effectiveness of antivibration gloves as a function of handle vibration of specific tools is proposed on the basis of frequency response characteristics of the gloves. The handle vibration spectra of six different tools are synthesized in the laboratory and attenuation performances of two different gloves are characterized under tools vibration, and M- and H-spectra defined in ISO-10819 (1996). The vibration characteristics of gloves are measured using three male subjects in the laboratory under different excitation spectra. The results suggest that tool-specific vibration isolation performance of a glove cannot be derived from the standardized M- and H-spectra. Frequency responses of the gloves are thus characterized under broad-band vibration excitations of two different magnitudes, and grip and feed forces recommended in ISO-10819. The results suggest that frequency response characteristics of gloves are relatively insensitive to magnitude of vibration but strongly dependent upon visco-elastic properties of the glove materials. The mean measured frequency response characteristics are then applied to derive an estimate of tool-specific isolation effectiveness of the gloves. The estimated acceleration transmissibility characteristics of gloves are compared with the mean measured responses to demonstrate validity of the proposed methodology. From comparisons, it is concluded that the isolation effectiveness of gloves for selected tools can be effectively predicted using the proposed methodology. The deviations between the predicted and measured transmissibility values are within 8% for majority of the glove–spectra combinations, well within the intra- and inter-subject variabilities reported in different studies.
Keywords
Gloves; Vibration-control; Vibration-effects; Tools; Vibration; Vibration-suppressors; Hand-tools; Protective-clothing; Personal-protective-equipment
Contact
Engineering and Control Technology Branch, NIOSH, 1095 Willowdale Road, MS 2201, Morgantown, WV 26505, USA
Publication Date
20020801
Document Type
Journal Article
Email Address
rkd6@cdc.gov
Fiscal Year
2002
NTIS Accession No.
NTIS Price
Issue of Publication
2
ISSN
0169-8141
NIOSH Division
HELD
Priority Area
Disease and Injury: Musculoskeletal Disorders of the Upper Extremities; Research Tools and Approaches: Control Technology and Personal Protective Equipment
Source Name
International Journal of Industrial Ergonomics
State
WV
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