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An experimental study of low-frequency motion in cars

An experimental study of low-frequency motion in cars
An experimental study of low-frequency motion in cars
Low-frequency acceleration can cause discomfort, instability and motion sickness, but there is little published information on this type of motion in cars. Accelerations in the fore-and-aft, lateral and vertical directions were measured continuously while driving around a fixed suburban route for 30 min. In separate studies, the variations in accelerations with the same driver driving the same car, the same driver driving different cars, and different drivers driving the same car were determined. The spectra of fore-and-aft and lateral accelerations were similar over the frequency range 0.1–0.5 Hz and, in consequence, motion sickness dose values (MSDVs) were similar in these axes when calculated using the frequency weighting in current standards.
At frequencies less than 0.1 Hz, fore-and-aft acceleration was greater than lateral acceleration. The MSDVs for vertical acceleration were appreciably less than those for fore-and-aft and lateral acceleration. Acceleration in the vertical direction was predominantly influenced by vehicle suspension dynamics, with peaks between 1.0 and 2.0 Hz, and the differences between vehicles were greater than the differences between drivers. The fore-and-aft and lateral acceleration (as reflected in the MSDVs) showed differences between drivers that were greater than the differences between vehicles. Although such low-frequency fore-and-aft and lateral acceleration in cars is dependent on the behaviour of the drivers, some human responses to these motions may be modified by vehicle design.
cars, low-frecuency motion, vibration, motion sickness
0954-4070
1231-1238
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Newman, M.M.
144ec8a9-7e30-4670-8382-7eede7193bca
Griffin, M.J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Newman, M.M.
144ec8a9-7e30-4670-8382-7eede7193bca

Griffin, M.J. and Newman, M.M. (2004) An experimental study of low-frequency motion in cars. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 218 (11), 1231-1238. (doi:10.1243/0954407042580093).

Record type: Article

Abstract

Low-frequency acceleration can cause discomfort, instability and motion sickness, but there is little published information on this type of motion in cars. Accelerations in the fore-and-aft, lateral and vertical directions were measured continuously while driving around a fixed suburban route for 30 min. In separate studies, the variations in accelerations with the same driver driving the same car, the same driver driving different cars, and different drivers driving the same car were determined. The spectra of fore-and-aft and lateral accelerations were similar over the frequency range 0.1–0.5 Hz and, in consequence, motion sickness dose values (MSDVs) were similar in these axes when calculated using the frequency weighting in current standards.
At frequencies less than 0.1 Hz, fore-and-aft acceleration was greater than lateral acceleration. The MSDVs for vertical acceleration were appreciably less than those for fore-and-aft and lateral acceleration. Acceleration in the vertical direction was predominantly influenced by vehicle suspension dynamics, with peaks between 1.0 and 2.0 Hz, and the differences between vehicles were greater than the differences between drivers. The fore-and-aft and lateral acceleration (as reflected in the MSDVs) showed differences between drivers that were greater than the differences between vehicles. Although such low-frequency fore-and-aft and lateral acceleration in cars is dependent on the behaviour of the drivers, some human responses to these motions may be modified by vehicle design.

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More information

Published date: 2004
Keywords: cars, low-frecuency motion, vibration, motion sickness
Organisations: Human Sciences Group

Identifiers

Local EPrints ID: 28221
URI: https://eprints.soton.ac.uk/id/eprint/28221
ISSN: 0954-4070
PURE UUID: 46a0fc8e-bec1-4ac0-8b4c-238d1085516e
ORCID for M.J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

Catalogue record

Date deposited: 28 Apr 2006
Last modified: 29 Aug 2019 00:55

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Contributors

Author: M.J. Griffin ORCID iD
Author: M.M. Newman

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