SEA Modeling and Testing for Airborne Transmission Through Vehicle Sound Package 971973
Airborne sound transmission through vehicle panels with penetrations and sound insulation is a major component of high frequency interior noise in cars and trucks. Accurate analytical models of interior noise require high fidelity simulation of these paths in order to perform upfront design of the sound package. This paper describes a modeling approach based on Statistical Energy Analysis (SEA) that provides a general and flexible capability for incorporating sound package parameters within an analytical model of high frequency interior noise. Validation of the model for sound transmission through panels with holes and with typical sound insulation material is achieved through innovative testing methods that reveal dynamics of the decoupler and barrier layers. Refinements of the general approach that consider more deterministic features of the specific decoupler material are also suggested.
Citation: Powell, R., Zhu, J., and Manning, J., "SEA Modeling and Testing for Airborne Transmission Through Vehicle Sound Package," SAE Technical Paper 971973, 1997, https://doi.org/10.4271/971973. Download Citation
Author(s):
Robert E. Powell, Jason Zhu, Jerome E. Manning
Pages: 12
Event:
SAE Noise and Vibration Conference and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Proceedings of the 1997 Noise and Vibration Conference-P-309, SAE 1997 Transactions - Journal of Passenger Cars-V106-6
Related Topics:
Interior noise
Insulation
Test procedures
Simulation and modeling
Transmissions
Trucks
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