Propagation of acoustic waves in 2D periodic and quasiperiodic phononic crystals

被引：18

作者：

Aly, Arafa H. ^{[1
]}

Nagaty, Ahmed ^{[1
]}

Khalifa, Z. ^{[1
]}

机构：

[1] Beni Suef Univ, Phys Dept, Fac Sci, Bani Suwayf, Egypt

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2017年 / 31卷 / 21期

关键词：

Phononic bandgap; quasiperiodic structure; wave localization; BAND-GAPS; LOCALIZATION;

D O I：

10.1142/S0217979217501478

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this study, we have investigated theoretically the propagation of longitudinal sonic waves in 2D periodic and aperiodic (quasiperiodic) phononic crystals. Fibonacci sequence has been used to generate the aperiodic structure. The effect of transformation from 2D periodic to aperiodic structure has been elucidated by calculating the transmission coefficient. The consequences of inserting a circular solid cylinder inside a host water matrix have been repeated at the same calculating conditions. Changing filling fraction has been used to tune the stop band width.

引用

页数：9

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