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Sound Package Weight Reduction: An Analysis Through Tests and SEA Models
Technical Paper
1999-01-1696
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper discusses the methods of reducing weight of sound package through a new approach in sound absorption and insulation. In contrast to conventional sound package theory, a light porous material with high absorption (Ultra Light material) is used to replace a conventional porous/barrier sandwich material (classic), which results in an equivalent or better noise reduction in-vehicle with significant weight reduction.
A Noise Reduction (NR) test was conducted with a box equipped with both the Ultra Light material and classic material. A SEA model of the same setup was also analyzed. Results from both the test and the analysis show that it is possible to achieve weight reduction by replacing conventional porous/barrier sandwich materials with light porous materials with high absorption. Finally, prediction from a vehicle SEA model and vehicle testing results for both materials are compared and show that weight of the classic sound package can be reduced significantly with no degradation in performance.
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Authors
Citation
Qian, Y., Vanbuskirk, J., and Gorzelski, T., "Sound Package Weight Reduction: An Analysis Through Tests and SEA Models," SAE Technical Paper 1999-01-1696, 1999, https://doi.org/10.4271/1999-01-1696.Also In
References
- Kinsler, L. E. Frey, A. R. Coppens, A. B. Sanders, V. J. 1982 Fundamentals of Acoustics, John Wiley & Sons (3 rd edition)
- C. Kaminsky J. Vanbuskirk T. Gorzelski Yang Qian “Statistical Energy Analysis of A Vehicle Interior Equipped with New Lightweight, High-Absorption Trim Materials”, Noise-Con 98, April 1998
- Alts, T. “Ultralight Sound- and Heat-Package: New Acoustic Concept” Rieter Automotive Systems, internal presentation notes, March 1997
- Vanbuskirk, J. “A Lightweight Alternative to Automotive Sound Control”, Automotive & Transportation Interiors Expo Conference 1998
- Qian Y. Vanbuskirk, J. “Sound Absorption Composites and Their Use in Automotive Interior Sound Control”, Proceedings of the 1995 Noise and Vibration Conference, 951244 Vol 1
- M. P. Norton Fundamental of Noise and Vibration Analysis for Engineer, Cambridge University Press (1989).
- Allard, J. F. “Propagation of Sound in Porous Media” 1993 Elsevier Science Publishes LTD