1997-05-20

Maximize Sound Transmission Loss Through Double Wall System with Optimized Coupling 971885

Sound transmission loss of the barriers determines significantly operational interior noise level of the automobile. The interior sound level in an automobile is determined mostly by the sound transmission loss through the walls (STL) and its absorption properties. In a well acoustically designed car, the sound transmission loss (STL) through the walls should be as high as possible.
This paper presents theoretical and experimental results of the STL through double wall systems. The coupling properties of the material placed between sound transmission loss barriers have been studied experimentally and theoretically. Of particular interest, are the physical and acoustical properties of the coupling material, including the fraction of bounded area between barriers and substrate.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

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

951268

View Details

TECHNICAL PAPER

Sound Field Control in a Car Compartment

880235

View Details

TECHNICAL PAPER

Interior Noise Prediction Based on Energy Finite Element Method

2005-01-2332

View Details

X