Empirically Predicting the Sound Transmission Loss of Double-Wall Sound Barrier Assemblies

Format:

Conference/Event

Author/Creator:

Wentzel, Richard E., author.

Conference Name:

SAE Noise and Vibration Conference and Exposition (1995-05-15 : Traverse City, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1995

Summary:

This paper discusses an empirical method for predicting the Sound Transmission Loss (STL) performance of Sound Barrier Assembly (SBA) materials that are commonly used in the automotive industry. The prediction method is based on basic STL theories of single and double-wall systems, in conjunction with the double wall resonance and the standing wave resonance between the two walls. In addition, a practical technique for determining the acoustical influence of the decoupler in a double-wall system is proposed. When all these considerations are put together properly, one gets a much clearer picture of the STL characteristics of typical double wall systems, and understands how the barrier and decoupler together affect the STL performance. The validity of the empirical prediction method is substantiated by comparing predictions with measured results of more than 60 samples

Notes:

Vendor supplied data

Publisher Number:

951268

Access Restriction:

Restricted for use by site license