The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit
later.
We apologize for any inconvenience caused
Influence of two positions for measuring instrument adapter on measurement of hand-transmitted vibration in grinding machine
Author(s): Xie Xiaoshuang, Zhang Min, Zheng Yingdong, Du Xieyi, Qi Cheng
Pages: 426-
429
Year: 2016
Issue:
6
Journal: Chinese Journal of Industrial Hygiene and Occupational Diseases
Keyword: Vibration; Hand-transmitted vibration; Measurement; Intraclass correlation coefficient;
Abstract: Objective To investigate the influence of two positions for measuring instrument adapter on the measurement of hand-transmitted vibration in grinding machine using the intraclass correlation coefficient (ICC) of reliability assessment index,and to provide a basis for studies on the measurement standard for handtransmitted vibration.Methods With reference to the measurement standard for hand-transmitted vibration ISO 5349 Mechanical vibration-Measurement and evaluation of human exposure to hand-transmitted vibration-Part 1:General requirements and Mechanical vibration-Measurement and evaluation of human exposure to handtransmitted vibration-Part 2:Practical guidance for measurement at the workplace,the domestic AWA5936 hand-transmitted vibration measuring instrument and SVAN-106 hand-transmitted vibration measuring instrument from Poland were used to measure hand-transmitted vibration in 3 workers for grinding machine in a foundry for 5 days continuously from September to October,2014,and Y-axis data were recorded and compared.Results In worker A,the "T"-shaped adapter had a significantly higher mean Y-axis accelerated speed effective value than the "O"-shaped adapter [4.34 m/s2 (95%CI 4.05-4.63) vs 2.32 m/s2 (95%CI 2.27~2.38),t=13.781,P<0.01]-In workers B and C,AWA5936 "U"-shaped adapter (placed at the position of the handle of grinding machine) had lower degrees of data variation of 12.55% and 15.77%,respectively,suggesting good data stability.The measurement results showed significant differences across different positions of adapter(P<0.01) and between all adapters except "O"-shaped and line-shaped adapters (all P<0.01),while the measurement results showed no significant differences between the"O"-shaped and line-shaped adapters (P>0.01).The comparison of the measurement results of AWA5936 vibration measuring instrument with an "U"-shaped adapter and SVAN-106 vibration measuring instrument with an "S"-shaped adapter showed an ICC of >0.80 (ICC=0.82),while the comparison of the measurement results of AWA5936 vibration measuring instrument with an "O"-shaped adapter and SVAN-106 vibration measuring instrument showed an ICC of <0.40.Conclusion SVAN-106 vibration measuring instrument with an "S"-shaped adapter placed at the palm and AWA5936 vibration measuring instrument with an"U"-shaped adapter placed at the handle of grinding machine can give comparable measurement results with good reliability.
Citations
No citation found
Related Articles
No related articles found