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Characteristics of Non-Stationary Sources of Wind Noise Measured with a Surface Pressure Array
Technical Paper
2017-01-1785
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Measurements of interior wind noise sound pressure level have shown that dBA and Loudness are not adequate metrics of wind noise sound quality due to non-stationary characteristics such as temporal modulation and impulse. A surface microphone array with high spatio-temporal resolution has been used to measure and analyze the corresponding non-stationary characteristics of the exterior aero-acoustic loading. Wavenumber filtering is used to observe the unsteady character of the low wavenumber aero-acoustic loading components most likely to be exciting glass vibration and transmitting sound.
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Bremner, P., Clifton, S., and Todter, C., "Characteristics of Non-Stationary Sources of Wind Noise Measured with a Surface Pressure Array," SAE Technical Paper 2017-01-1785, 2017, https://doi.org/10.4271/2017-01-1785.Data Sets - Support Documents
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References
- Peric , C. , Watkins , S. , Lindqvist , E. , and Saunders , J. Effects of On-Road Turbulence on Automotive Wind Noise: Comparing Wind-Tunnel and On-Road Tests SAE Technical Paper 970406 1997 10.4271/970406
- Amman , S. , Greenberg , J. , Gulker , B. , and Abhyankar , S. Subjective Quantification of Wind Buffeting Noise SAE Technical Paper 1999-01-1821 1999 10.4271/1999-01-1821
- Blommer , M. , Amman , S. , Abhyankar , S. , and Dedecker , B. Sound Quality Metric Development for Wind Buffeting and Gusting Noise SAE Technical Paper 2003-01-1509 2003 10.4271/2003-01-1509
- Cogotti , A. , Cardano , D. , Carlino , G. , and Cogotti , F. Aerodynamics and Aeroacoustics of Passenger Cars in a Controlled High Turbulence Flow: Some New Results SAE Technical Paper 2005-01-1455 2005 10.4271/2005-01-1455
- Riegel , M. , Helfer , M. and Wiedemann , J. The effect of turbulence on in-cabin wind noise - a comparison of road and wind tunnel results Proc. 6th MIRA Intnl. Vehicle Aerodynamics Conf. 2006
- Krampol , S. , Riegel , M. and Wiedemann , J. A Procedure to Simulate the Turbulent Noise Interior of Cars Proc. NAG/DAGA Intnl. Conf. Rotterdam March 2009
- Thompson , M. , Watkins , S. , and Kim , J. Wind-Tunnel and On-Road Wind Noise: Comparison and Replication SAE Technical Paper 2013-01-1255 2013 10.4271/2013-01-1255
- Watkins , S. , Thompson , M. , and Alam , F. Transient Wind Noise SAE Technical Paper 2013-01-0096 2013 10.4271/2013-01-0096
- Lindener , N. , Miehling , H. , Cogotti , A. , Cogotti , F. et al. Aeroacoustic Measurements in Turbulent Flow on the Road and in the Wind Tunnel SAE Technical Paper 2007-01-1551 2007 10.4271/2007-01-1551
- Oettle , N. The Effects of Unsteady On-Road Flow Conditions on Cabin Noise PhD Thesis School of Engineering and Computing Sciences, Durham University 2013
- Terakado , S. , Makihara , T. , Sugiyama , T. , Maeda , K. et al. Experimental Investigation of Aeroacoustic Cabin Noise in Unsteady Flow by Means of a New Turbulence Generating Device SAE Int. J. Passeng. Cars - Mech. Syst. 10 1 309 317 2017 10.4271/2017-01-1545
- HWANG Y.F. and MAIDANIK G. Jnl. Sound & Vibration 1990 142 1 A wavenumber analysis of the coupling of a structural mode and flow turbulence
- HAMBRIC S. A. , HWANG Y. F. & BONNESS W.K. Journal of Fluids and Structures 19 2004 Vibration of plates with clamped and free edges excited by low speed turbulent boundary layer
- DEJONG R. G. , BHARJ T. S. and LEE J. J. 2001 SAE NVH Conf. Traverse City, MI 2001-01-1629 Vehicle wind noise analysis using a SEA model with measured source levels
- BREMNER P. G. and WILBY J. F. 2002 Proc. AIAA Aeroacoustics Conf. Breckenridge CO AIAA 2002-2551, Aero-vibro-acoustics: problem statement and model-based design methods
- Moron , P. , Powell , R. , Freed , D. , Perot , F. et al. A CFD/SEA Approach for Prediction of Vehicle Interior Noise due to Wind Noise SAE Technical Paper 2009-01-2203 2009 10.4271/2009-01-2203
- HARTMANN M. , OCKER J. et al 2012 Proc. AIAA Aeroacoustics Conf. Colorado Springs CO Wind noise caused by the A-pillar and the side mirror flow
- BREMNER P. G. 2014 Proc. CFA 2014 Poitiers FR AHAS5, Developing aerodynamic design diagnostics for control of interior wind noise
- Bremner , P. , Todter , C. , and Clifton , S. Sideglass Turbulence and Wind Noise Sources Measured with a High Resolution Surface Pressure Array SAE Int. J. Passeng. Cars - Mech. Syst. 8 3 1063 1074 2015 10.4271/2015-01-2325