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Closed Cell Foam: A Sound Barrier and More
Technical Paper
2005-01-2380
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Sound barrier materials come in many varieties. They are generally described as being dense, high mass, and impervious to airflow. Until recently, lightweight foams have not generally been recognized or utilized as sound barriers. However, closed cell foam is an effective sound barrier that performs in accordance with the Mass Law. It can be used in many applications where a lightweight barrier is sufficient, avoiding the penalty of excessive mass relative to the noise reduction required.
Sound absorption does not generally accompany the sound transmission loss performance of a sound barrier material. Recently developed closed cell foam with significant sound absorption properties is described.
This paper describes the production of closed cell foam and the fabrication of parts from this material. A visual tour of material production and part fabrication is presented. Material characteristics and typical applications are described.
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Citation
Smith, M. and Semrau, W., "Closed Cell Foam: A Sound Barrier and More," SAE Technical Paper 2005-01-2380, 2005, https://doi.org/10.4271/2005-01-2380.Also In
References
- Semrau, Waldemar R. “Light Weight Systems: The Role of Sound Barriers” SAE Paper 2003-01-1516 2003
- Park, Chung P. Burgun, Sandrine Brucker, Michel Subramonian, Suresh “Novel Acoustical Polyolefin Foams” SAE Paper 2001-01-1556 2001
- Hirabayashi, T. et al “Application of Noise Control and Heat Insulation Materials and Devices in the Automotive Industry” SAE Paper 951375 1995
- Wyerman, B. et al “Automotive Noise and Vibration Control Practices in the New Millennium” SAE Paper 2003-01-1590 2003