Application of wavelet analysis to the impact harshness of a vehicle
Application of wavelet analysis to the impact harshness of a vehicle
The impact harshness of cars is an important factor in ride comfort. Traditionally, impact harshness is evaluated via subjective measurements based on the experience of test drivers. Objective evaluations are more efficient and reproducible than subjective measurements. Thus, this paper develops an objective measure based on a few signal parameters, specifically the initial peak values and damping ratios of the major vibration modes. A method based on the continuous wavelet transform is presented for the measurement of damping ratios. The performance of the method for estimating damping ratios is illustrated by the use of synthetic data, while performance of the objective measure is assessed on the basis of a series of trials on real vehicles.
vehicle, comfort, impact, harshness, objective, evaluation, wavelet, analysis
1331-1338
Lee, S.-K.
920cea13-3af4-4e4d-80b7-b1ee1fc5a3e8
White, P.R.
9abd73ae-57c3-4737-8894-ab22c4a79e95
2000
Lee, S.-K.
920cea13-3af4-4e4d-80b7-b1ee1fc5a3e8
White, P.R.
9abd73ae-57c3-4737-8894-ab22c4a79e95
Lee, S.-K. and White, P.R.
(2000)
Application of wavelet analysis to the impact harshness of a vehicle.
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 214 (11), .
Abstract
The impact harshness of cars is an important factor in ride comfort. Traditionally, impact harshness is evaluated via subjective measurements based on the experience of test drivers. Objective evaluations are more efficient and reproducible than subjective measurements. Thus, this paper develops an objective measure based on a few signal parameters, specifically the initial peak values and damping ratios of the major vibration modes. A method based on the continuous wavelet transform is presented for the measurement of damping ratios. The performance of the method for estimating damping ratios is illustrated by the use of synthetic data, while performance of the objective measure is assessed on the basis of a series of trials on real vehicles.
This record has no associated files available for download.
More information
Published date: 2000
Keywords:
vehicle, comfort, impact, harshness, objective, evaluation, wavelet, analysis
Identifiers
Local EPrints ID: 10815
URI: http://eprints.soton.ac.uk/id/eprint/10815
PURE UUID: 4c5114d1-d0a0-4a2e-b0bf-d61e27f6c882
Catalogue record
Date deposited: 15 Jul 2005
Last modified: 27 Apr 2022 09:54
Export record
Contributors
Author:
S.-K. Lee
Author:
P.R. White
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics