This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Optimization of Sound Packages for Commercial Vehicles Using Panel Contribution Analysis
Technical Paper
2009-01-2241
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Microphone array-based Panel Contribution Analysis (PCA) is a new technique used for Sound Package design optimization for commercial vehicles. The technique allows for noise control performance and cost optimization.
This technique ranks the contribution of fully trimmed structural panels (e.g. floor, roof, etc.) and leaks in a vehicle cabin to the noise levels experienced by a driver while the vehicle is in cruising operation. Often the noise and vibration sources (engine, transmission, exhaust, aerodynamic noise, tires, etc) cannot be easily modified, thus the only practical action to solve noise problems is to design the noise control treatments applied to the vehicle panels. Panels that have a large contribution to the noise levels at the driver's ear are heavily treated with noise control materials, whereas panels with low contribution get little to no treatment.
This paper describes a microphone array-based PCA technique, and the results of a successful application of it to optimize the interior noise level performance of a new commercial vehicle. The application results clearly indicated the dominant contributing panels to the sound pressure levels at the driver's ear.
Recommended Content
Authors
Citation
Castillo, M. and Schuhmacher, A., "Optimization of Sound Packages for Commercial Vehicles Using Panel Contribution Analysis," SAE Technical Paper 2009-01-2241, 2009, https://doi.org/10.4271/2009-01-2241.Also In
References
- Hald J. Patch holography in cabin environments using a two-layer handheld array with an extended SONAH algorithm Proceedings of Euronoise 2006 Tampere, Finland 2006
- Hald J. Gomes J. A comparison of two patch NAH methods Proceedings of Internoise 2006 Honolulu, Hawaii 2006
- Fahy F.J. Some applications of the reciprocity principle in experimental vibroacoustics Acoustical Physics 48 2 217 229 2003
- Koners G. Panel noise contribution analysis: An experimental method for determining the noise contributions of panels to an interior noise SAE 2003
- Moritz C.T. Kunio J.T. Determination of In-Cab Sound Paths Using Sound Intensity Proceedings of Internoise 2002, Dearborn MI, USA 2002
- Schroeder L.E. Estimating Vehicle Interior Noise Using Room Models and Sound Power Sound and Vibration July 2002
- Wolff O. Fast panel noise contribution analysis using large PU sensor arrays Proceedings of Internoise 2007 Istanbul, Turkey 2007
- Rondeau J.F. et al Vehicle acoustic synthesis method: improving acquisition time by using p-u probes SAE 2005
- Hald J. Kimura M. Ishii Y. Tsuchiya M. Ando H. Yamashita T. Panel contribution analysis using a volume velocity source and a double layer array with the SONAH algorithm in proceedings of Internoise 2006 Honolulu, Hawaii 2006
- Gade S. Moller N. Hald J. Alkestrup L. The use of volume velocity source in transfer measurements In Proceedings of ISMA 2004 Leuven, Belgium 2004