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KMID : 0895420080180010001
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Journal of Korean Society of Occupational and Enviromental Hygiene
2008 Volume.18 No. 1 p.1 ~ p.10
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Assessment of Anti-vibration Gloves for Reduction of Hand-transmitted Vibration Exposure
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Choi Seok-Hyun
Hong Seok-In
Jang Han-Kee
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Abstract
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In order to evaluate performance of anti-vibration gloves, it is necessary to measure the transmitted vibration to the hand and the applied forces at the same time while gripping the vibrating handle. In the study a system was developed to measure both the vibration and the forces. The system consists of a measurement handle with eight strain gauges and two accelerometers and a PC-based system with a software for signal processing, evaluation of the hand-transmitted vibration and for control of applied forces in the pre-determined range. The handle was installed on the vibration shaker which is strong enough so as not to be affected by dynamic coupling with the hand-arm. Whole procedure of ISO 10819:1996 to determine the vibration transmissibility of anti-vibration gloves was programmed into the system. As an example of the application, three subjects joined the test to get vibration transmissibilities of 9 anti-vibration gloves where each glove was tested twice a subject. Average and standard deviation of the corrected vibration transmissibility were also calculated. All tested gloves fulfilled criterion for Mspectrum(TRM < 1.0 ), but one glove fulfilled criterion for Hspectrum(TRH < 6.0 ),
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KEYWORD
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Anti-vibration gloves, Hand-transmitted vibration, Vibration transmissibility, M-Spectrum, H-Spectrum
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