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The frequency dependence of subjective reaction to vertical and horizontal whole-body vibration at low magnitudes

The frequency dependence of subjective reaction to vertical and horizontal whole-body vibration at low magnitudes
The frequency dependence of subjective reaction to vertical and horizontal whole-body vibration at low magnitudes

The assessment of building vibration with respect to human response requires knowledge of the influence of vibration magnitude, frequency, direction, and duration. This article reports an experiment conducted to investigate the effect of three of these factors: frequency, magnitude, and direction. The method of magnitude estimation was employed with a sound reference stimulus (1/3 octave band centered at 1 kHz) so as to determine reaction to vertical (z-axis) and horizontal (y-axis) sinusoidal whole-body vibration. Twenty subjects were exposed to six acceleration magnitudes in the range 0.04-0.4 ms-2 rms at nine frequencies between 4 and 63 Hz. The relation between magnitude estimate rp and acceleration magnitude q> was determined at each frequency in the psychophysical power form tft = k<p”. The value of the exponent n varied from 1.04 to 1.47 for vertical motion and from 0.68 to 1.99 for horizontal motion. For vertical motion, the effect of frequency was not significant; for horizontal motion, the exponent increased with increasing frequency. Vibration frequency weightings were determined to describe subjective response to whole-body vibration at low magnitudes that might occur in buildings. PACS numbers: 43.40.Ng.

0001-4966
1406-1413
Howarth, Henrietta V.C.
48988c97-ff47-46ba-8fe7-0aed23759a28
Griffin, Michael J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Howarth, Henrietta V.C.
48988c97-ff47-46ba-8fe7-0aed23759a28
Griffin, Michael J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Howarth, Henrietta V.C. and Griffin, Michael J. (1988) The frequency dependence of subjective reaction to vertical and horizontal whole-body vibration at low magnitudes. Journal of the Acoustical Society of America, 83 (4), 1406-1413. (doi:10.1121/1.395947).

Record type: Article

Abstract

The assessment of building vibration with respect to human response requires knowledge of the influence of vibration magnitude, frequency, direction, and duration. This article reports an experiment conducted to investigate the effect of three of these factors: frequency, magnitude, and direction. The method of magnitude estimation was employed with a sound reference stimulus (1/3 octave band centered at 1 kHz) so as to determine reaction to vertical (z-axis) and horizontal (y-axis) sinusoidal whole-body vibration. Twenty subjects were exposed to six acceleration magnitudes in the range 0.04-0.4 ms-2 rms at nine frequencies between 4 and 63 Hz. The relation between magnitude estimate rp and acceleration magnitude q> was determined at each frequency in the psychophysical power form tft = k<p”. The value of the exponent n varied from 1.04 to 1.47 for vertical motion and from 0.68 to 1.99 for horizontal motion. For vertical motion, the effect of frequency was not significant; for horizontal motion, the exponent increased with increasing frequency. Vibration frequency weightings were determined to describe subjective response to whole-body vibration at low magnitudes that might occur in buildings. PACS numbers: 43.40.Ng.

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More information

Published date: 1988
Organisations: University of Southampton, Human Factors Research Unit, Inst. Sound & Vibration Research

Identifiers

Local EPrints ID: 410877
URI: https://eprints.soton.ac.uk/id/eprint/410877
ISSN: 0001-4966
PURE UUID: 70704d39-7d55-429b-afa2-12ed8b6b4a8b
ORCID for Michael J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

Catalogue record

Date deposited: 09 Jun 2017 09:47
Last modified: 14 Mar 2019 01:56

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