This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Importance of Durability on Acoustical Performance for Carpet Underlay
Annotation ability available
Sector:
Language:
English
Abstract
ICI has reviewed the acoustical performance of cast polyurethane foam and shoddy pad when used for Automotive Carpet Underlay applications.
Data will be presented on a range of all MDI-based acoustic foam systems as well as traditional automotive carpet underlay material. Particular attention will be paid to the influence of compression set durability on acoustical performance. Using a newly developed test method to simulate long-term in-vehicle usage, it will be shown that extended compression gives an acoustic improvement when using polyurethane foam compared to conventional shoddy pad.
Additionally, it has been shown that recent advances in polyurethane foam density reduction have not adversely affected acoustic performance in automotive carpet underlay applications.
Citation
Buck, K. and Wellman, R., "Importance of Durability on Acoustical Performance for Carpet Underlay," SAE Technical Paper 970148, 1997, https://doi.org/10.4271/970148.Also In
References
- MacFarland, D.R. 1994 Cost Effective Molded Polyurethane Foam for Automotive Acoustical Carpet Underlay and Dash Insulators Proceedings of the 1994 International Congress & Exposition
- Kolano and Saha Engineers, Inc. September 12 & 27 1996