Band gap creation using quasiordered structures based on sonic crystals

被引：22

作者：

Romero-García, V

Fuster, E

García-Raffi, LM

Sánchez-Pérez, EA

Sopena, M

Llinares, J

Sánchez-Pérez, JV

机构：

[1] Univ Politecn Valencia, Grp Acust Arquitecton & Medio Ambiente, Dept Fis Aplicada, Valencia 46022, Spain

[2] Univ Politecn Valencia, Inst Matemat Pura & Aplicada, Dept Matemat Aplicada, Valencia 46022, Spain

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 17期

关键词：

D O I：

10.1063/1.2198012

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

It is well known that sonic crystals are periodic structures that present acoustic band gaps attenuation centered at frequencies related with the lattice constant of the structure. We present an approach based on genetic algorithms to create band gaps in a predetermined range of frequencies. The mechanism used by genetic algorithms to achieve this objective is the creation of vacancies in a starting sonic crystal, built with air-embedded rigid scatterers. As a result of the optimization process, we obtain quasiordered structures on which acoustic properties are based in the multiple scattering theory. (c) 2006 American Institute of Physics.

引用

页数：3

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