The transmission of translational seat vibration to the head-I. Vertical seat vibration
The transmission of translational seat vibration to the head-I. Vertical seat vibration
Vibration in the three translational (fore-and-aft, lateral and vertical) and the three rotational (roll, pitch and yaw) axes of the head has been measured during exposure to whole-body random vibration. Using an instrumented bar gripped between the teeth, the influence of variations in bite grip and bite-bar mass on movements of the head were found to be small up to a mass of 375 g. The repeatability of measures of seat-to-head transmissibility within a single subject and the variability in transmissibility across a group of twelve subjects have been determined with two seating conditions: a rigid seat with a backrest and the same seat with no backrest. Seat-to-head transmissibilities associated with vertical seat vibration are presented at frequencies up to 25 Hz for all six axes of head vibration both with and without a backrest. Head motion occurred principally in the fore-and-aft, vertical and pitch axes of the head. The backrest increased the magnitude of head vibration in most cases. Intra-subject variability was generally small compared to inter-subject variability.
191-197
Paddan, G.S.
ee5700cc-0497-4273-8b2d-9ae86adf968b
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8
1988
Paddan, G.S.
ee5700cc-0497-4273-8b2d-9ae86adf968b
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Paddan, G.S. and Griffin, M.J.
(1988)
The transmission of translational seat vibration to the head-I. Vertical seat vibration.
Journal of Biomechanics, 21 (3), .
(doi:10.1016/0021-9290(88)90169-8).
Abstract
Vibration in the three translational (fore-and-aft, lateral and vertical) and the three rotational (roll, pitch and yaw) axes of the head has been measured during exposure to whole-body random vibration. Using an instrumented bar gripped between the teeth, the influence of variations in bite grip and bite-bar mass on movements of the head were found to be small up to a mass of 375 g. The repeatability of measures of seat-to-head transmissibility within a single subject and the variability in transmissibility across a group of twelve subjects have been determined with two seating conditions: a rigid seat with a backrest and the same seat with no backrest. Seat-to-head transmissibilities associated with vertical seat vibration are presented at frequencies up to 25 Hz for all six axes of head vibration both with and without a backrest. Head motion occurred principally in the fore-and-aft, vertical and pitch axes of the head. The backrest increased the magnitude of head vibration in most cases. Intra-subject variability was generally small compared to inter-subject variability.
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Published date: 1988
Organisations:
Human Factors Research Unit
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Local EPrints ID: 408557
URI: http://eprints.soton.ac.uk/id/eprint/408557
ISSN: 0021-9290
PURE UUID: 39f1fd0a-75ec-4893-b64e-6647977a5220
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Date deposited: 23 May 2017 04:03
Last modified: 15 Mar 2024 12:23
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Author:
G.S. Paddan
Author:
M.J. Griffin
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