Molding the Acoustic Attenuation in Quasi-Ordered Structures: Experimental Realization

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概要

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• Inverse-designed scattering acoustical elements, called quasi-ordered structures (QOSs), are theoretically and experimentally reported in this work, showing their possibilities as attenuation devices. Multiobjective evolutionary algorithms together with multiple scattering theory have been used to design a distribution of vacancies in a phononic crystal in order to create a QOS with predetermined properties. This work shows the experimental realization of QOSs with both high and stable values of acoustic attenuation in a given range of frequencies, proving the performance of the optimization procedure. Molding the acoustic attenuation is one of the most important properties for the design of effective filters.

• 2012-08-25

著者

• SANCHEZ-PEREZ Juan

  Centro de Tecnoiogias Fisicas : Acustica, Materiales y Astrofisica, Universitat Politecnica de Valencia

• ROMERO-GARCIA Vicent

  Instituto de Investigacion para la Gestion Integrada de zonas Costeras, Universitat Politecnica de Valencia

• Garcia-Raffi Luis

  Instituto Universitario de Matemática Pura y Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain

• Sánchez-Pérez Juan

  Centro de Tecnologías Físicas: Acústica, Materiales y Astrofísica, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain

• Romero-García Vicent

  Instituto de Investigación para la Gestión Integrada de zonas Costeras, Universitat Politècnica de València, Paranimf 1, 46730, Gandia, Valencia, Spain

関連論文

• Molding the Acoustic Attenuation in Quasi-Ordered Structures: Experimental Realization
• Molding the Acoustic Attenuation in Quasi-Ordered Structures : Experimental Realization

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