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Discomfort during lateral acceleration: Influence of seat cushion and backrest

Discomfort during lateral acceleration: Influence of seat cushion and backrest
Discomfort during lateral acceleration: Influence of seat cushion and backrest
Lateral acceleration causes discomfort but how the discomfort depends on the frequency of acceleration or characteristics of seating is poorly understood. Using magnitude estimation, twelve male subjects rated the discomfort caused by lateral oscillation at eight frequencies (0.2-1.0 Hz) across four seating conditions (a rigid seat and a train seat, both with and without backrests). Discomfort increased with increasing frequency of lateral acceleration in a similar manner for all four seating conditions. However, at all frequencies and with both seats there was less discomfort when sitting with backrest support than without. Least discomfort occurred on the train seat with backrest and greatest discomfort on the rigid seat without backrest. Current standards predict an additive effect of backrest on vibration discomfort, but the findings show that low frequency lateral acceleration can cause less discomfort when sitting with a backrest than when sitting on the same seat without a backrest.
vibration, seating, discomfort
0003-6870
588-594
Beard, G.F.
2c2a956c-3941-4359-b72a-abd15781e46f
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Beard, G.F.
2c2a956c-3941-4359-b72a-abd15781e46f
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Beard, G.F. and Griffin, M.J. (2013) Discomfort during lateral acceleration: Influence of seat cushion and backrest. Applied Ergonomics, 44 (4), 588-594. (doi:10.1016/j.apergo.2012.11.009). (PMID:23312371)

Record type: Article

Abstract

Lateral acceleration causes discomfort but how the discomfort depends on the frequency of acceleration or characteristics of seating is poorly understood. Using magnitude estimation, twelve male subjects rated the discomfort caused by lateral oscillation at eight frequencies (0.2-1.0 Hz) across four seating conditions (a rigid seat and a train seat, both with and without backrests). Discomfort increased with increasing frequency of lateral acceleration in a similar manner for all four seating conditions. However, at all frequencies and with both seats there was less discomfort when sitting with backrest support than without. Least discomfort occurred on the train seat with backrest and greatest discomfort on the rigid seat without backrest. Current standards predict an additive effect of backrest on vibration discomfort, but the findings show that low frequency lateral acceleration can cause less discomfort when sitting with a backrest than when sitting on the same seat without a backrest.

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14737 GFB-MJG 2013 Seats_and_lateral_acceleration - Accepted Manuscript
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More information

e-pub ahead of print date: 9 January 2013
Published date: July 2013
Keywords: vibration, seating, discomfort
Organisations: Human Sciences Group

Identifiers

Local EPrints ID: 355007
URI: https://eprints.soton.ac.uk/id/eprint/355007
ISSN: 0003-6870
PURE UUID: 535569a2-70b8-476e-ba30-1abe055b6e9e
ORCID for M.J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

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Date deposited: 24 Jul 2013 15:30
Last modified: 06 Jun 2018 13:16

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Contributors

Author: G.F. Beard
Author: M.J. Griffin ORCID iD

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