作者: José Sánchez-Dehesa , Victor M. Garcia-Chocano , Daniel Torrent , Francisco Cervera , Suitberto Cabrera
DOI: 10.1121/1.3531815
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摘要: A systematic study of noise barriers based on sonic crystals made cylinders that use recycled materials like absorbing component is reported here. The consist only three rows perforated metal shells filled with rubber crumb. Measurements reflectance and transmittance by these are reported. Their attenuation properties result from a combination sound absorption the crumb reflection periodic distribution scatterers. It concluded porous can be used as building blocks whose physical parameters optimized in order to design efficient adapted different noisy environments.