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), 1077-1095. (doi:10.1006/jsvi.1999.2598).


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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)
Related URLs:
Subjects: T Technology > T Technology (General)
Q Science > QC Physics
Divisions : University Structure - Pre August 2011 > Institute of Sound and Vibration Research > Human Sciences
ePrint ID: 10467
Accepted Date and Publication Date:
Date Deposited: 06 Feb 2006
Last Modified: 31 Mar 2016 11:18

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