Browse > Article
http://dx.doi.org/10.5050/KSNVN.2005.15.4.404

Simultaneous Measurement of Vibration and Applied Forces at a Power Tool Handle for the Reduction of Random Error When valuating Hand-transmitted Vibration  

Choi, Seok-Hyun (고등기술연구원 제품기술연구센터, 아주대학교 기계공학과)
Jang, Han-Kee (고등기술연구원 제품기술연구센터)
Park, Tae-Won (아주대학교 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.15, no.4, 2005 , pp. 404-411 More about this Journal
Abstract
To increase accurateness and reliability of the evaluation of power tool vibration transmitted to an operator, it is necessary to measure the grip and feed forces during the measurement of hand-transmitted vibration. In the study a system was invented to measure the vibration and the grip and/or feed force, which consists of a measurement handle and a PC with a data acquisition system and the corresponding software. Strain gauges and an accelerometer were mounted on the handle surface for the simultaneous measurement of the forces and the vibration. The program in the system makes it possible to monitor the grip and feed force during the tool operation so that the operator keeps the applying forces within the pre-determined range. Investigating the vibration total values, frequency-weighted root-mean-square accelerations at the handle, obtained in repetition for each power tool with control of the grip and feed force showed more consistency than those measured without force control. By using the system the experimenter can reduce random error of the measured vibration.
Keywords
Hand-arm System; Hand-transmitted Vibration; Grip Force; Feed Force; Frequency-weighting; Vibration Total Value;
Citations & Related Records
연도 인용수 순위
  • Reference
1 기술표준원, 2000, KS B 2041: 진동 및 충격 -용어
2 British Standards Institution, 1994, BS EN 420: General Requirements for Gloves
3 최석현 외2인, 2003, '수완계 진동 평가에 영향을 미치는 작용력의 측정,' 한국소음진동공학회 추계학술대회논문집, pp. 1038-1042
4 조성진 외 1인, 2004, '진동 핸드그라인더의 진동 저감,' 한국소음진동공학회논문집, 제14권, 제10호, pp. 1035-1040
5 장한기외 4인, 2003, 신체질환을 위한 공구진동 및 작업유해성 관리 프로그램 개발(고등기술연구원 내부보고서), P2251-01-MQ-03.01
6 Griffin, M. J., 1990, Handbook of Human Vibration, Academic Press, London
7 International Organization for Standardization, 2001, ISO 5349-1: Mechanical Vibration-measurement and Evaluation of Human Exposure to Hand-Transmitted Vibration - Part 1: General Requirements
8 International Organization for Standardization, 2001, ISO 5349-2: Mechanical Vibration-measurement and Evaluation of Human Exposure to Hand-transmitted Vibration - Part 2: Practical Guidance for Measurement at the Workplace
9 British Standards Institution, 1987, BS 6842: Guide to Measurement and Evaluation of Human Exposure ot Vibration Transmitted to the Hand
10 Jang, H. K., Song, C. M., Chai, J. B., 2004, 'Comparision of Dynamic Properties of Tranducer Adapterfor the Measurement of Vibration to the Hand', 11th ICSV