• Title/Summary/Keyword: anti-vibration glove

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An Analysis of Vibration Attenuation Effect of the different type of Gloves and Drilling Mode (진동모드에 따른 각종 장갑의 방진효과 분석)

  • 황성환;이형일;이동충
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.24 no.69
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    • pp.65-73
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    • 2001
  • The objective of this study is to evaluate the vibration attenuation effects of the different type of gloves and drilling mode while operating a light-weighted powered hand drill. For the experimental design, five different kinds of glove(barehanded cotton partly coated anti-vibration, and open-finger vibration glove) two types of push force level(100N and 200N) and two types of drilling mode(impact and non-impulsive) were considered. Six healthy male subjects were employed to drive screws into a vertically mounted marble plate with a powered hand drill in a randomly ordered experimental conditions. The findings of this study are summarized as follows; (1) It was found that the best combination of overall BMS transmissibility was using impact drilling mode with anti-vibration glove among evaluated experimental conditions (2) The wearing open finger vibration glove in mid-frequency level and anti-vibration glove with impact drill in high-frequency were the best in the result from mean corrected transmissibility equation of ISO 10819.

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Estimation of Anti-vibration Glove Performance Considering the Vibration Characteristic of Power Tool through Development of Flexible Palm Adapter (Flexible Palm 어댑터의 개발을 통한 동력 공구의 진동 특성을 고려한 방진장갑의 성능 평가)

  • Song, Chi-Mun;Jang, Han-Kee;Hong, Seok-In;Chai, Jang-Bom
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.19 no.2
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    • pp.217-224
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    • 2009
  • This study aims to show the guideline to select optimal anti-vibration gloves for specific power tools to prevent hazardous vibration to human body. It is most desirable for the correct evaluation of handtransmitted vibration form the power tool handle to measure the acceleration between the handle surface and the hand palm as recommended in ISO 5349-1. First, the accurate acceleration measurement device was developed of which the thickness and weight were less than 6 mm and 12 g respectively so that it can be placed between the handle and the palm without any inconvenience during the measurement. Finally, using the device we estimated anti-vibration glove performances considering the frequency characteristics of generated vibration by the power tool.

Development of the System for Measurement of the Vibration Transmissibility of an Anti-vibration Glove (방진 장갑 진동 전달률 측정 시스템 개발)

  • Choi, Seok-Hyun;Hong, Seok-In;Jang, Han-Kee;Park, Tae-Won
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.16 no.6 s.111
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    • pp.602-608
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    • 2006
  • 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 and 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 system. Whole procedure of ISO 10819 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 anti-vibration gloves where each glove was tested twice a subject. Average and standard deviation of vibration transmissibility were also calculated.

Assessment of Anti-vibration Gloves for Reduction of Hand-transmitted Vibration Exposure (수전달 진동 피폭 저감을 위한 방진 장갑의 성능 평가)

  • Choi, Seok Hyun;Hong, Seok In;Jang, Han Kee
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.18 no.1
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    • pp.1-10
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    • 2008
  • 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 M-spectrum($\overline{TR_M}$<1.0), but one glove fulfilled criterion for H-spectrum($\overline{TR_H}$<6.0),

Estimation of the Measurement Uncertainty in Measuring the Vibration Transmissibility of Anti-vibration Gloves (방진장갑 진동 전달률 측정에서의 측정불확도 추정)

  • Hong, Seok-In;Jang, Han-Ki;Choi, Seok-Hyun
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2005.11a
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    • pp.251-254
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    • 2005
  • In this study vibration transmissibilities of the selected anti-vibration gloves were measured, and the measurement uncertainty was estimated. Since human factors such as palm size, gripping condition and dynamic properties of the hand-arm effect the measurement a lot, it is necessary to know ow much the uncertainty is. This study takes the measurement procedure suggested in ISO 10819. Three subjects Joined at each test and each anti-vibration glove was tested twice per a subject. Average and standard deviation of vibration transmissibility were calculated and uncertainty of them were estimated at 95% confidence level.

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A Study on the Compatibility Evaluation of Hand-arm Adequate Vibration and an Oscillating Spectrum for Vibrating Tools (국소진동 보호구의 적합성 평가와 진동공구에 적합한 가진 스펙트럼에 관한 연구)

  • Yun, Hee-Kyung;Kim, Tae-Gu;Yun, Yu-Seong
    • Journal of the Korean Society of Safety
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    • v.24 no.1
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    • pp.60-68
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    • 2009
  • The aim of this paper is to evaluate the compatibility of anti-vibration gloves, to predict the attenuation of vibration with different types of anti-vibration gloves, to estimate the spectra of the ISO 10819 standard, and to present an oscillating spectrum adequate for vibrating tools. This paper use two ISO standards for the measurement and evaluation of hand-arm vibration. Some anti-vibration gloves can attenuate vibration, but all the anti-vibration gloves in this study do not satisfy the ISO 10819 requirements. In case of equal vibration types, the outside materials are effective in order of leather, fabrics and rubber-coating. Anti-vibration gloves manufactured in the United State satisfy ISO 10819 criteria using United State subjects, but do not satisfy ISO 10819 using Japanese subjects. M-spectrum acceleration exists below 10Hz and H-spectrum exists above 500Hz. Generally vibrating tools have the peak of Z-axis, but generation of vibration differ from each vibrating tools.