Investigation on the influence of load of noise from brush cutter on gardeners

LI Bo; LI Shu-sen; LI Bin

doi:10.13332/j.1000-1522.20160354

Journal of Beijing Forestry University > 2017 > 39(4): 108-114. > DOI: 10.13332/j.1000-1522.20160354

LI Bo, LI Shu-sen, LI Bin. Investigation on the influence of load of noise from brush cutter on gardeners[J]. Journal of Beijing Forestry University, 2017, 39(4): 108-114. DOI: 10.13332/j.1000-1522.20160354

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Investigation on the influence of load of noise from brush cutter on gardeners

College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin, Heilongjiang, 150040, P. R. China

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Received Date: October 31, 2016
Revised Date: January 05, 2017
Published Date: March 31, 2017

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Abstract

Abstract

Through the field measurement of noise level of 18 gardeners operating the knapsack brush cutter and the shoulder-hanging brush cutter, we calculated the noise exposure metering of every working day during gardeners operating the trimmer line, two-tooth cutting tools, four-gear cutting tools and forty-tooth cutting tools. According to gardeners' working habits, we tested the noise level made by 2 different brush cutters when cutting plants, in order to work out the sound level and sound frequencies when the two brush cutter being operated at a no-load running, low speed and high speed operation. Meanwhile, brain waves of these gardeners were measured and the average power spectra density ratio R between brain wave band α and band β was compared, so that we can analyze the influence of their mental load and make some positive innovations and further suggestions about how to control unnecessary noise for greening department.
- occupational safety,
- noise load,
- ergonomic,
- cutting operation

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