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Application of wavelet analysis to the impact harshness of a vehicle

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
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), 1331-1338.

Record type: Article

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.

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More information

Published date: 2000
Keywords: vehicle, comfort, impact, harshness, objective, evaluation, wavelet, analysis

Identifiers

Local EPrints ID: 10815
URI: https://eprints.soton.ac.uk/id/eprint/10815
PURE UUID: 4c5114d1-d0a0-4a2e-b0bf-d61e27f6c882

Catalogue record

Date deposited: 15 Jul 2005
Last modified: 05 Oct 2018 12:04

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