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Effects of 1-Hz and 2-Hz transient vertical vibration on discomfort

Effects of 1-Hz and 2-Hz transient vertical vibration on discomfort
Effects of 1-Hz and 2-Hz transient vertical vibration on discomfort

The discomfort caused by 1-Hz and 2-Hz vertical sinusoidal vibration has been studied with 20 seated subjects, using the method of magnitude estimation. The sinusoidal transients were superimposed on an 80-s background vibration which consisted of a 1-oct band of random vibration, centered on 1 Hz, with a magnitude of 0.63 m s-2 rms. The transients were added at five magnitudes (0.63-1.6 m s-2 rms) and seven durations (1-60 s). Male and female subjects produced comparable results and similar discomfort was produced by the two frequencies of vibration. Discomfort increased when the magnitudes or the durations of the transients were increased. Of alternative methods of predicting the discomfort, the overall vibration dose values gave the highest correlations with subject estimates, followed by the overall root-mean-square accelerations. A lower correlation was found with peak acceleration and the lowest correlation was with a running rms measurement, using a 1-s window.

0001-4966
2157-2164
Ruffell, Catherine M.
c0df7654-271a-4383-84f5-2b7e82f0e67e
Griffin, Michael J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Ruffell, Catherine M.
c0df7654-271a-4383-84f5-2b7e82f0e67e
Griffin, Michael J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Ruffell, Catherine M. and Griffin, Michael J. (1995) Effects of 1-Hz and 2-Hz transient vertical vibration on discomfort. Journal of the Acoustical Society of America, 98 (4), 2157-2164. (doi:10.1121/1.413330).

Record type: Article

Abstract

The discomfort caused by 1-Hz and 2-Hz vertical sinusoidal vibration has been studied with 20 seated subjects, using the method of magnitude estimation. The sinusoidal transients were superimposed on an 80-s background vibration which consisted of a 1-oct band of random vibration, centered on 1 Hz, with a magnitude of 0.63 m s-2 rms. The transients were added at five magnitudes (0.63-1.6 m s-2 rms) and seven durations (1-60 s). Male and female subjects produced comparable results and similar discomfort was produced by the two frequencies of vibration. Discomfort increased when the magnitudes or the durations of the transients were increased. Of alternative methods of predicting the discomfort, the overall vibration dose values gave the highest correlations with subject estimates, followed by the overall root-mean-square accelerations. A lower correlation was found with peak acceleration and the lowest correlation was with a running rms measurement, using a 1-s window.

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More information

Accepted/In Press date: May 1995
Published date: October 1995

Identifiers

Local EPrints ID: 429447
URI: https://eprints.soton.ac.uk/id/eprint/429447
ISSN: 0001-4966
PURE UUID: 3420dbb8-357f-4f29-9820-0503bcc2d1c7
ORCID for Michael J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

Catalogue record

Date deposited: 27 Mar 2019 17:30
Last modified: 28 Mar 2019 01:37

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