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Predicting the subjective response to nonsteady vibration based on the summation of subjective magnitude

Predicting the subjective response to nonsteady vibration based on the summation of subjective magnitude
Predicting the subjective response to nonsteady vibration based on the summation of subjective magnitude

A purpose of this study was to determine the values of exponents of psychophysical functions for the discomfort produced by whole-body vertical vibration. In addition, the applicability of a method of predicting the average stimulus intensity of a stimulus the intensity of which varies with time was investigated. The first experiment investigated the effect on discomfort of the duration of vibration (for durations of 2, 5, 10, 20, and 50 s) and of the vibration acceleration magnitude [for 0.5, 0.75, 1.11, 1.67, and 2.5 ms-2(rms) at 8 Hz]. The magnitude estimation method was used. The results show that the logarithm of the magnitude estimates is in linear proportion to both the logarithm of the acceleration and the logarithm of the duration. The values of exponents for acceleration and duration were 0.96 and 0.56, respectively. In the second experiment, the point of subjective equality of each of 16 nonsteady vibrations was measured and compared with the stimulus intensity predicted by means of the method proposed by the authors. Good agreement was found between the measured and predicted stimulus intensity and it was confirmed that the predicting method could be applied to vibration as well as to noise.

0001-4966
1080-1089
Hiramatsu, Kozo
7f3c4f64-fcdd-447e-ad31-55a110ea24fb
Griffin, Michael J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Hiramatsu, Kozo
7f3c4f64-fcdd-447e-ad31-55a110ea24fb
Griffin, Michael J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Hiramatsu, Kozo and Griffin, Michael J. (1984) Predicting the subjective response to nonsteady vibration based on the summation of subjective magnitude. Journal of the Acoustical Society of America, 76 (4), 1080-1089. (doi:10.1121/1.391400).

Record type: Article

Abstract

A purpose of this study was to determine the values of exponents of psychophysical functions for the discomfort produced by whole-body vertical vibration. In addition, the applicability of a method of predicting the average stimulus intensity of a stimulus the intensity of which varies with time was investigated. The first experiment investigated the effect on discomfort of the duration of vibration (for durations of 2, 5, 10, 20, and 50 s) and of the vibration acceleration magnitude [for 0.5, 0.75, 1.11, 1.67, and 2.5 ms-2(rms) at 8 Hz]. The magnitude estimation method was used. The results show that the logarithm of the magnitude estimates is in linear proportion to both the logarithm of the acceleration and the logarithm of the duration. The values of exponents for acceleration and duration were 0.96 and 0.56, respectively. In the second experiment, the point of subjective equality of each of 16 nonsteady vibrations was measured and compared with the stimulus intensity predicted by means of the method proposed by the authors. Good agreement was found between the measured and predicted stimulus intensity and it was confirmed that the predicting method could be applied to vibration as well as to noise.

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Published date: August 1984

Identifiers

Local EPrints ID: 413906
URI: http://eprints.soton.ac.uk/id/eprint/413906
ISSN: 0001-4966
PURE UUID: 765c0cf6-c9fe-49de-b89a-adfa94f9b17d
ORCID for Michael J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

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Date deposited: 08 Sep 2017 16:31
Last modified: 07 Oct 2020 02:49

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