2012/05/17 by Victor M. García-Chocano, Victor Manuel García-Chocano, García-Chocano, Victor Manuel +3
Engineering · Health Professions · Physics and Astronomy · #Acoustic Wave Phenomena Research #Aerodynamics and Acoustics in Jet Flows #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Noise Effects and Management #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1205.3985
arxiv created 2012/05/17 · openalex publication_date 2012/05/17 · arxiv updated 2012/05/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
It is demonstrated that sonic crystals (periodic structures of sound scatterers) can be used to design acoustic barriers that attenuate efficiently broadband noise. Traffic noise is chosen here as an example in which our design procedure is applied. The structures consist of cylindrical units containing rubber crumb, a sound absorbing material. An optimization algorithm is developed to obtain the material distribution and the dimensions of the sonic crystal giving the best attenuation properties for this noise. The good agreement found between predictions and measurements for a barrier (3m height) characterized in a transmission room gives strong support to our proposal.