Investigation Composite Materials for its Sound Absorption Properties
Journal Title: Romanian Journal of Acoustics and Vibration - Year 2012, Vol 9, Issue 2
Abstract
This paper presents research on determining the sound absorption coefficient depending on frequency, for each sample, thus determining the sound absorption capacity of each obtained material. Materials were made from particles of recycled rubber, pine sawdust and a polyurethane binder. The use of recycled rubber and sawdust in the production of sound absorber will help combat the existing problems of both waste disposal and noise pollution. Absorption coefficient is calculated using Delany-Bazley model and experiments are conducted in impedance tube to validate the analytical outcomes.
Authors and Affiliations
Ancuta BORLEA, Tiberiu RUSU, Ovidiu VASILE
Keywords
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