Experimental investigation on bandgap properties of lead/silicone rubber phononic crystals

被引：2

作者：

Shen, Yan ^{[1
]}

Qian, Ying-Jing ^{[1
]}

Wang, Yi-Bo ^{[1
]}

Yang, Xiao-Dong ^{[1
]}

Xu, Lei ^{[2
]}

机构：

[1] Beijing Key Lab Nonlinear Vibrat & Strength Mech, Beijing 100124, Peoples R China

[2] Beijing Spacecrafts, Beijing 100094, Peoples R China

来源：

STRUCTURES | 2022年 / 46卷

基金：

中国国家自然科学基金;

关键词：

Bandgap property; Phononic crystals; Plane wave expansion method; Experimental investigation; GAP;

D O I：

10.1016/j.istruc.2022.11.023

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, we investigate the bandgap properties of the one-dimensional and two-dimensional lead/silicon rubber phononic crystals theoretically, numerically and experimentally. Based on the plane wave expansion method and the finite element method, bandgap properties of lead/silicone rubber phononic crystals with finite linear periodic structure and finite square periodic structure are calculated and discussed. Bandgap properties due to the filling fraction are also studied. In the experimental section, a finite linear periodic lead/silicone rubber phononic crystal structure and a finite square periodic lead/silicone rubber phononic crystal structure have been designed and experimentally investigated. The results demonstrate that the linear periodic structure can generate two bandgaps in the low-frequency range and the square periodic structure can reduce the vibration by 44 dB in the frequency range of 215 Hz to 310 Hz. The experimental results agree well with the theoretically finite element predictions.

引用

页码：1626 / 1633

页数：8

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