Frequency weighting of hand-transmitted vibration for evaluating comfort

Authors

  • Setsuo Maeda Department of Applied Sociology, Kinki University, 3-4-1 Kowakae, Higashiosaka 577-8502, Japan
  • Serap G. Geridonmez Department of Engineering Sciences, Middle East Technical University, Ankara 06531, Turkey
  • Kazuhisa Miyashita Department of Hygiene, School of Medicine, Wakayama Medical University, 811-1, Wakayama, 641-8509, Japan
  • Kazuma Ishimatsu National Institute of Occupational Safety and Health, 6-21-1 Nagao, Tama-ku Kawasaki, 214-8585, Japan

Keywords:

Experiments, Machine vibrations, Power amplifiers, Signal processing, Comfort evaluation, Hand-arm vibration, Hand-transmitted vibration, Judgment method, Mean ages, Signal processing unit, Vertical vibrations

Abstract

A suitable frequency-weighting curve for comfort evaluation with regard to hand-arm vibration using the category judgment method was established. A shaker with a power amplifier and signal processing unit were used in the experiments. The subjects were exposed to vertical vibrations before being asked to choose a numerical category to indicate their best perceived level of comfort during each stimulus. The experiments were preformed with twelve healthy non-smoker subjects, six males and six females, with mean ages of 23.2 and 24.5 years, respectively. The results show that the category judgment method establishes the relationship between the frequency-weighted r.m.s acceleration according to the frequency weighting curves. From the results for r.m.s. errors it is found that the most suitable frequency-weighting curves for evaluating hand-arm vibration comfort are WhH-b, Wh, and WhP-W.

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Published

2011-06-01

How to Cite

1.
Maeda S, Geridonmez SG, Miyashita K, Ishimatsu K. Frequency weighting of hand-transmitted vibration for evaluating comfort. Canadian Acoustics [Internet]. 2011 Jun. 1 [cited 2021 Oct. 25];39(2):94-5. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2374

Issue

Section

Proceedings of the Acoustics Week in Canada

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