Research on low-frequency band gap property of a hybrid phononic crystal

被引：19

作者：

Dong, Yake ^{[1
]}

Yao, Hong ^{[1
,2
]}

Du, Jun ^{[1
]}

Zhao, Jingbo ^{[1
,2
]}

Chao, Ding ^{[1
]}

Wang, Benchi ^{[1
]}

机构：

[1] Air Force Engn Univ, Sch Aeronaut & Astronaut Engn, Xian 710038, Shaanxi, Peoples R China

[2] Air Force Engn Univ, Coll Sci, Xian 710051, Shaanxi, Peoples R China

来源：

MODERN PHYSICS LETTERS B | 2018年 / 32卷 / 15期

关键词：

Hybrid phononic crystal; Bragg scattering; anti-resonance; local resonance; METAMATERIAL;

D O I：

10.1142/S0217984918501658

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A hybrid phononic crystal has been investigated. The characteristic frequency of XY mode, transmission loss and displacement vector have been calculated by the finite element method. There are Bragg scattering band gap and local resonance band gap in the band structures. We studied the influence factors of band gap. There are many flat bands in the eigenfrequencies curve. There are many flat bands in the curve. The band gap covers a large range in low frequency. The band gaps cover more than 95% below 3000 Hz.

引用

页数：8

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