This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Improving SEA Predictions with Experimental Data
Technical Paper
2011-01-1701
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Statistical Energy Analysis (SEA) has been used widely by industry and academia for more than 20 years to predict the mid-to-high frequency range behavior of complex acoustic systems. At Gulfstream Aerospace Corporation (GAC), SEA models have been developed to predict the interior cabin noise levels of completed Gulfstream aircraft. These models are also used for acoustic evaluations of design changes prior to implementation as well as a diagnostic tool for investigating noise and vibration issues. Throughout the development of the SEA models, extensive experimental testing in GAC's Acoustic Test Facility (ATF) was conducted on numerous aircraft components represented in the models. This paper demonstrates the importance of using experimental data to improve the accuracy of the SEA predictions by accurately adjusting the material properties and acoustic parameters of the SEA model to better match the ATF experimental data. This is particularly important for complicated SEA models with thousands of subsystems and junctions.
Recommended Content
Authors
Citation
Wang, T. and Maxon, J., "Improving SEA Predictions with Experimental Data," SAE Technical Paper 2011-01-1701, 2011, https://doi.org/10.4271/2011-01-1701.Also In
References
- Maxon, J Malluck, A Application of Statistical Energy Analysis and Optimization in the Design of Gulfstream's G150 Interior Thermal/Acoustic Package Inter-Noise2006 Hawaii,U. S. Dec 2006
- Wang, T Maxon, J Application of Statistical Energy Analysis and Optimization in the Design of Gulfstream Large-Cabin Aircraft Interior Thermal/Acoustic Package Inter-Noise2008 Shanghai, China Oct 26-29 2008
- SEAM ® Reference Manual Cambridge Collaborative Inc. 2010
- Musser, C Rodrigues, A Takaki, D Use of Statistical Energy Analysis in Vehicle NVH Design Cycle Brazil SAE NVH conference Florianopolis, Brazil Oct 2010
- ASTM E2249 Standard Test Method for Laboratory Measurement of Airborne Transmission Loss of Buildup Partitions and Elements Using Sound Intensity ASTM International 2008
- Lynch, K. Maxon, J. “Gulfstream Acoustic Test Facility Capabilities,” SAE Technical Paper 2011-01-1647 2011 10.4271/2011-01-1647
- Ver, I Beranek, L Noise and Vibration Control Engineering - Principles and Applications 2 nd John Wiley & Sons 2006
- Lyon, R Dejong, R Theory and Application of Statistical Energy Analysis 2 nd Butterworth-Heinemann 1995
- Wang, T Maxon, J Modeling Isolators in SEA Inter-Noise2010 Lisbon, Portugal June 2010