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The importance of unsteady aerodynamics to road vehicle dynamics

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journal contribution
posted on 01.10.2014, 14:06 by Joshua Fuller, Matt BestMatt Best, Nikhil J.I. Garrett, Martin Passmore
This paper investigates the influence that different unsteady aerodynamic components have on a vehicle's handling. A simulated driver and vehicle are subject to two time-dependent crosswinds, one representative of a windy day and the second an extreme crosswind gust. Initially a quasi-static response is considered and then 5 additional sources of aerodynamic unsteadiness, based on experimental results, are added to the model. From the simulated vehicle and driver, the responses are used to produce results based on lateral deviation, driver steering inputs and also to create a ‘subjective’ handling rating. These results show that the largest effects are due to the relatively low frequency, time-dependent wind inputs. The additional sources of simulated unsteadiness have much smaller effect on the overall system and would be experienced as increased wind noise and reduced refinement rather than a worsening of the vehicle's handling

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS

Volume

117

Pages

1 - 10 (10)

Citation

FULLER, J. ... et al, 2013. The importance of unsteady aerodynamics to road vehicle dynamics. Journal of Wind Engineering and Industrial Aerodynamics, 117, pp.1-10.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2013

Notes

This is the author’s version of a work that was accepted for publication in Journal of Wind Engineering and Industrial Aerodynamics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Wind Engineering and Industrial Aerodynamics, 117, 2013, DOI: 10.1016/j.jweia.2013.03.006

ISSN

0167-6105

Language

en