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Sinusoidal and random whole-body vibration: comparative effects on visual performance

Sinusoidal and random whole-body vibration: comparative effects on visual performance
Sinusoidal and random whole-body vibration: comparative effects on visual performance

An experimental comparison of the effect of whole-body sinusoidal and one-third octave-band random vibration on the performance of a display reading task is described. The findings indicate that one-third octave-band random vibration has significantly less effect on performance. Subsequent measurements of rotational head motion demonstrated that this finding may be due to differences in the velocity probability density distributions produced by the different motions. Subjects also performed the visual task during exposure to several broad-band random motions. Predicted error values were obtained by averaging the frequency weighted time histories of these motions. It was found that both R.M.S. and R.M.Q. averaging procedures applied to the broad-band frequency weighted time histories gave accurate error predictions when compared with the measured error scores. Practical implications of the experimental findings and recommendations for future research are discussed.

0095-6562
1000-1005
Moseley, M.J.
a1bb50d1-2fee-422e-be55-f75823efc4a6
Lewis, C.H.
d0edc153-b7de-47df-96cc-217a6a29e7e3
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Moseley, M.J.
a1bb50d1-2fee-422e-be55-f75823efc4a6
Lewis, C.H.
d0edc153-b7de-47df-96cc-217a6a29e7e3
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Moseley, M.J., Lewis, C.H. and Griffin, M.J. (1982) Sinusoidal and random whole-body vibration: comparative effects on visual performance. Aviation, Space and Environmental Medicine, 53 (10), 1000-1005.

Record type: Article

Abstract

An experimental comparison of the effect of whole-body sinusoidal and one-third octave-band random vibration on the performance of a display reading task is described. The findings indicate that one-third octave-band random vibration has significantly less effect on performance. Subsequent measurements of rotational head motion demonstrated that this finding may be due to differences in the velocity probability density distributions produced by the different motions. Subjects also performed the visual task during exposure to several broad-band random motions. Predicted error values were obtained by averaging the frequency weighted time histories of these motions. It was found that both R.M.S. and R.M.Q. averaging procedures applied to the broad-band frequency weighted time histories gave accurate error predictions when compared with the measured error scores. Practical implications of the experimental findings and recommendations for future research are discussed.

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Published date: October 1982

Identifiers

Local EPrints ID: 430089
URI: http://eprints.soton.ac.uk/id/eprint/430089
ISSN: 0095-6562
PURE UUID: cc5b8da5-c918-405d-b845-1e9a490343bd
ORCID for M.J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

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Date deposited: 11 Apr 2019 16:30
Last modified: 12 Apr 2019 00:37

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