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Characterizing the In Vehicle Performance of Expandable Sealants Used As Acoustic Baffles
Technical Paper
1999-01-1687
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Chemically and heat reactive, expandable sealants are used as “acoustical baffles” in the automotive industry. These acoustic baffles are used to impede noise, water and dust propagation inside of structural components and body cavities. Use of these sealant materials has grown significantly as the demands to improve vehicle acoustic performance has increased. Various test methods have been developed to quantify the performance of these materials through direct comparison of material samples. These investigations use standardized testing procedures to characterize the acoustic performance of a material sample on the basis of controlled laboratory test conditions. This paper presents a step in the progression of evaluating acoustic baffle performance in the vehicle. Standard experimental techniques are used to investigate the influence of the baffles on the vehicle acoustic performance.
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Citation
Weber, P. and Hopton, G., "Characterizing the In Vehicle Performance of Expandable Sealants Used As Acoustic Baffles," SAE Technical Paper 1999-01-1687, 1999, https://doi.org/10.4271/1999-01-1687.Also In
References
- Saha, P. Myers, R.D. “Evaluating Acoustical Performance of Expandable Sealant Materials” SAE Paper 93036 SAE International Congress and Exposition Detroit, MI March 1-5 1993
- Visintainer, A.P. Saha, P. “Acoustical Study of Cavity Fillers for Vehicle Applications” SAE Paper 971931 SAE Noise and Vibration Conference and Eposition Traverse City, MI May 1997
- Saha, P. “The Need of a Standardized Acoustical Evaluation Method for Body Cavity Fillers” Proceedings of the Automotive Body Interior & Safety Systems, International Body Engineering Conference 1995
- Otto, D.J. Hanley, J.L. “From Art to Science: A New Acoustic Baffle Material” SAE Paper 951245 SAE Noise and Vibration Conference and Eposition Traverse City, MI May 15-18 1995
- Van der Linden, P.J.G. Varet, Ph. “Experimental Determination of Low Frequency Noise Contributions of Interior Vehicle Body Panels in Normal Operation” SAE Paper 960194
- LMS International CADA-X Users Manual
- Visintainer, A.P. VanBuskirk, J.A. “Effects of Sound Absorption on Speech Intelligibility in an Automotive Environment” SAE Paper 971881 SAE Noise and Vibration Conference and Exposition Traverse City, MI May 1997