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The Role of a Fiber Decoupler on the Acoustical Performance of Automotive Floor Systems
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 15, 2007 by SAE International in United States
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The sound absorption coefficient and transmission loss of automotive floor systems with several different fiber decoupler materials are presented. Flooring materials included tufted carpet with and without mass layers and non woven carpet without mass layers. Decouplers included die cut and molded fiber under pads in a range of fiber types and weight. Mass backed floors as well as lightweight dissipative floor systems are compared. The results show a range of performance for sound absorption and transmission loss that allows an NVH engineer to select material combinations to achieve targeted noise reduction in a vehicle.
CitationWyerman, B. and Reed, D., "The Role of a Fiber Decoupler on the Acoustical Performance of Automotive Floor Systems," SAE Technical Paper 2007-01-2185, 2007, https://doi.org/10.4271/2007-01-2185.
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