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A Dissipative Approach to Vehicle Sound Abatement
Technical Paper
1999-01-1668
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper explores the performance of light weight attenuators, which take a dissipative approach to sound abatement in the motor vehicle. An analytical model is used to predict the sound transmission loss and random incidence sound absorption of attenuators, absorbers and sandwich insulation systems. Then, a mathematical expression is developed which combines the dissipative and sound transmission loss performance to determine the total noise reduction provided in the vehicle. Using this equation, the performance of multi-layered attenuators is shown to be comparable to, or better than that of sandwich insulators. Finally, test results from various studies in vehicles show that significant weight savings can be realized by using these multi-layered attenuators, which take a dissipative approach to vehicle sound insulation, rather than the traditional sandwich insulation system.
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Authors
Topic
Citation
Wentzel, R. and VanBuskirk, J., "A Dissipative Approach to Vehicle Sound Abatement," SAE Technical Paper 1999-01-1668, 1999, https://doi.org/10.4271/1999-01-1668.Also In
References
- Ver, Istvan L. “Interaction of Sound Waves with Solid Structures” Noise and Vibration Control Engineering, Principles and Applications Baranek L. L. Ver I. L. John Wiley & Sons, Inc. 1992 289 290
- Society of Automotive Engineers Recommended Practice J1400 “ Laboratory Measurement of the Airborne Sound Barrier Performance of Automotive Materials and Assemblies ”
- Lord, H. W. Gateley, W. S. Evensen, H. A. “Acoustics of Rooms and Enclosures” Noise Control for Engineers , 148 150
- Tschudi H. R. “A Mathematical Model for the Acoustical Behavior of Multi-layer Structures - The Software Package ‘SISAB” 1987 UniKeller Conferences
- American Society of Testing and Materials (ASTM) Test Procedure C 384 “ Standard Test Method for Impedance and Absorption of Acoustical Materials by the Impedance Tube Method ”
- American Society of Testing and Materials (ASTM) Test Procedure C 384 “ Standard Test Method for Sound Absorption and Sound Absorption Coefficient by the Reverberation Room Method”
- Chappius, A. “Small Size Devices for Accurate Acoustical Measurements of Materials and Parts Used in Automobiles” SAE Noise and Vibration Conference Proceedings, # 931266 1993
- Wentzel, R. E. Saha, P. “Empirically Predicting the Sound Transmission Loss of Double-Wall Sound barrier Assemblies” SAE Noise and Vibration Conference Proceedings, # 951268 1995