Asymmetric acoustic transmission in graded beam

Li Jing; Jiu Hui Wu; Dong Guan; Kuan Lu; Nansha Gao; Cao Songhua

doi:10.1016/j.physb.2016.08.051

Asymmetric acoustic transmission in graded beam

Li Jing, Jiu Hui Wu, Dong Guan, Kuan Lu, Nansha Gao, Cao Songhua

School of Marine Science and Technology

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We demonstrate the dynamic effective material parameters and vibration performance of a graded beam. The structure of the beam was composed of several unit cells with different fill factors. The dispersion relations and energy band structures of each unit cell were calculated using the finite element method (FEM). The dynamic effective material parameters in each unit cell of the graded beam were determined by the dispersion relations and energy band structures. Longitudinal wave propagation was investigated using a numerical method and FEM. The results show that the graded beam allows asymmetric acoustic transmission over a wide range of frequencies.

Original language	English
Pages (from-to)	140-145
Number of pages	6
Journal	Physica B: Condensed Matter
Volume	502
DOIs	https://doi.org/10.1016/j.physb.2016.08.051
State	Published - 1 Dec 2016

Keywords

Acoustic metamaterial
Asymmetric acoustic transmission
Effective material parameters
Graded structure

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10.1016/j.physb.2016.08.051

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title = "Asymmetric acoustic transmission in graded beam",

abstract = "We demonstrate the dynamic effective material parameters and vibration performance of a graded beam. The structure of the beam was composed of several unit cells with different fill factors. The dispersion relations and energy band structures of each unit cell were calculated using the finite element method (FEM). The dynamic effective material parameters in each unit cell of the graded beam were determined by the dispersion relations and energy band structures. Longitudinal wave propagation was investigated using a numerical method and FEM. The results show that the graded beam allows asymmetric acoustic transmission over a wide range of frequencies.",

keywords = "Acoustic metamaterial, Asymmetric acoustic transmission, Effective material parameters, Graded structure",

author = "Li Jing and Wu, {Jiu Hui} and Dong Guan and Kuan Lu and Nansha Gao and Cao Songhua",

note = "Publisher Copyright: {\textcopyright} 2016",

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doi = "10.1016/j.physb.2016.08.051",

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TY - JOUR

T1 - Asymmetric acoustic transmission in graded beam

AU - Jing, Li

AU - Wu, Jiu Hui

AU - Guan, Dong

AU - Lu, Kuan

AU - Gao, Nansha

AU - Songhua, Cao

PY - 2016/12/1

Y1 - 2016/12/1

N2 - We demonstrate the dynamic effective material parameters and vibration performance of a graded beam. The structure of the beam was composed of several unit cells with different fill factors. The dispersion relations and energy band structures of each unit cell were calculated using the finite element method (FEM). The dynamic effective material parameters in each unit cell of the graded beam were determined by the dispersion relations and energy band structures. Longitudinal wave propagation was investigated using a numerical method and FEM. The results show that the graded beam allows asymmetric acoustic transmission over a wide range of frequencies.

AB - We demonstrate the dynamic effective material parameters and vibration performance of a graded beam. The structure of the beam was composed of several unit cells with different fill factors. The dispersion relations and energy band structures of each unit cell were calculated using the finite element method (FEM). The dynamic effective material parameters in each unit cell of the graded beam were determined by the dispersion relations and energy band structures. Longitudinal wave propagation was investigated using a numerical method and FEM. The results show that the graded beam allows asymmetric acoustic transmission over a wide range of frequencies.

KW - Acoustic metamaterial

KW - Asymmetric acoustic transmission

KW - Effective material parameters

KW - Graded structure

UR - http://www.scopus.com/inward/record.url?scp=84985993191&partnerID=8YFLogxK

U2 - 10.1016/j.physb.2016.08.051

DO - 10.1016/j.physb.2016.08.051

M3 - 文章

AN - SCOPUS:84985993191

SN - 0921-4526

VL - 502

SP - 140

EP - 145

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Asymmetric acoustic transmission in graded beam

Abstract

Keywords

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