Experimental Verification of Design Charts for Acoustic Absorbers

971951

05/20/1997

Event
SAE Noise and Vibration Conference and Exposition
Authors Abstract
Content
Design charts which predict acoustic absorption of porous insulators were verified experimentally using the two-microphone technique to measure the normal incidence absorption coefficient of three glass fiber materials in two different arrangements - a single-layer sample and a single layer in front of an air space, each backed by a rigid termination. The specific flow resistivities of the materials ranged from 2,000 to 52,000 mks rayls/m. Experimentally determined absorption coefficients were in agreement with those predicted by the design charts. The results indicate that these charts could be a useful tool in designing sound absorbers for practical applications.
Meta TagsDetails
DOI
https://doi.org/10.4271/971951
Pages
4
Citation
Hastings, M., and Godfrey, R., "Experimental Verification of Design Charts for Acoustic Absorbers," SAE Technical Paper 971951, 1997, https://doi.org/10.4271/971951.
Additional Details
Publisher
Published
May 20, 1997
Product Code
971951
Content Type
Technical Paper
Language
English