This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Vehicle Wind Noise Analysis Using a SEA Model with Measured Source Levels
Technical Paper
2001-01-1629
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A series of tests have been performed on a production vehicle to determine the characteristics of the external turbulent flow field in wind tunnel and road conditions. Empirical formulas are developed to use the measured data as source levels for a Statistical Energy Analysis (SEA) model of the vehicle structural and acoustical responses. Exterior turbulent flow and acoustical subsystems are used to receive power from the source excitations. This allows for both the magnitudes and wavelengths of the exterior excitations to be taken into account - a necessary condition for consistently accurate results. Comparisons of measured and calculated interior sound levels show good correlation.
Recommended Content
Technical Paper | Wind-Tunnel and On-Road Wind Noise: Comparison and Replication |
Technical Paper | Recent Progress using SEA and CFD to Predict Interior Wind Noise |
Technical Paper | A Transient SEA Model for Transmission of Non-Stationary Wind Noise |
Authors
Citation
DeJong, R., Bharj, T., and Lee, J., "Vehicle Wind Noise Analysis Using a SEA Model with Measured Source Levels," SAE Technical Paper 2001-01-1629, 2001, https://doi.org/10.4271/2001-01-1629.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
References
- Coney, W. B. et al. “Characterization of the Wind Noise Loading of a Production Automobile Greenhouse Surfaces,” 53-1 Fluid-Structure Interaction, Aeroelasticity, Flow Induced Vibration and Noise ASME November 1997
- Coney, W. B. et al. “A Semi-Empirical Approach for Modeling Greenhouse Surface Noise,” SAE Paper 1999-01-1811
- Strumolo. G. S. “The Wind Noise Modeller,” SAE Paper 971921 1997
- Blake, W.M. Mechanics of Flow-Induced Sound and Vibration Academic Press London 1986