Transmission of yaw seat vibration to the head


Paddan, G.S. and Griffin, M.J. (2000) Transmission of yaw seat vibration to the head Journal of Sound and Vibration, 229, (5), pp. 1077-1095. (doi:10.1006/jsvi.1999.2598).

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Description/Abstract

The transmission of yaw-axis vibration to the heads of seated subjects has been investigated at frequencies below 5 Hz. The variability between and within subjects and the effects of backrest contact, visual environment and the position of the centre of rotation have been investigated. The subjects sat on a rigid flat seat and were exposed to random motion at a magnitude of 1·0 rad/s2r.m.s. (root-mean-square) for 2 min. Head motion was measured in six axes using a light-weight bite-bar held between the teeth. Twelve male subjects participated in a study of the effect of backrest contact and visual conditions and one male subject participated in a repeatability study. A "back-on" posture (subject's back in contact with the seat backrest) increased the frequency of maximum transmissibility from 2 to 3 Hz compared with a "back-off" posture. There was little change in transmissibility with the subjects sitting with their eyes open compared to their eyes closed. With increasing separations between a subject and the centre of rotation (at six distances from 0 to 500 mm with the subject facing outwards) there were large increases in lateral acceleration at the head.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1006/jsvi.1999.2598
Additional Information: Available online 19 March 2002
ISSNs: 0022-460X (print)
Subjects:
Organisations: Human Sciences Group
ePrint ID: 10467
Date :
Date Event
2000Published
Date Deposited: 06 Feb 2006
Last Modified: 16 Apr 2017 23:58
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/10467

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