SEISMIC WAVEGUIDE OF METAMATERIALS

被引：75

作者：

Kim, Sang-Hoon ^{[1
]}

Das, Mukunda P. ^{[2
]}

机构：

[1] Mokpo Natl Maritime Univ, Div Marine Engn, Mokpo 530729, South Korea

[2] Australian Natl Univ, RSPE, Dept Theoret Phys, Canberra, ACT 0200, Australia

来源：

MODERN PHYSICS LETTERS B | 2012年 / 26卷 / 17期

基金：

新加坡国家研究基金会;

关键词：

Metamaterial; seismic wave; acoustic properties;

D O I：

10.1142/S0217984912501059

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We developed a new method of an earthquake-resistant design to support conventional aseismic system using acoustic metamaterials. The device is an attenuator of a seismic wave that reduces the amplitude of the wave exponentially. Constructing a cylindrical shell-type waveguide composed of many Helmholtz resonators that creates a stop-band for the seismic frequency range, we convert the seismic wave into an attenuated one without touching the building that we want to protect. It is a mechanical way to convert the seismic energy into sound and heat.

引用

页数：8

共 17 条

[1]

BERANEK LL, 1954, ACOUSTICS, pCH3

[2]

Caloz C, 2006, ELECTROMAGNETIC METAMATERIALS: TRANSMISSION LINE THEORY AND MICROWAVE APPLICATIONS: THE ENGINEERING APPROACH, P1

[3] One-dimensional structured ultrasonic metamaterials with simultaneously negative dynamic density and modulus [J].

Cheng, Y. ;

Xu, J. Y. ;

Liu, X. J. .

PHYSICAL REVIEW B, 2008, 77 (04)

[4] Broad forbidden bands in parallel-coupled locally resonant ultrasonic metamaterials [J].

Cheng, Y. ;

Xu, J. Y. ;

Liu, X. J. .

APPLIED PHYSICS LETTERS, 2008, 92 (05)

[5] Two-dimensional acoustic metamaterial with negative modulus [J].

Ding, Changlin ;

Hao, Limei ;

Zhao, Xiaopeng .

JOURNAL OF APPLIED PHYSICS, 2010, 108 (07)

[6] Ultrasonic metamaterials with negative modulus [J].

Fang, Nicholas ;

Xi, Dongjuan ;

Xu, Jianyi ;

Ambati, Muralidhar ;

Srituravanich, Werayut ;

Sun, Cheng ;

Zhang, Xiang .

NATURE MATERIALS, 2006, 5 (06) :452-456

[7] Broadband cylindrical acoustic cloak for linear surface waves in a fluid [J].

Farhat, M. ;

Enoch, S. ;

Guenneau, S. ;

Movchan, A. B. .

PHYSICAL REVIEW LETTERS, 2008, 101 (13)

[8] Ultrabroadband Elastic Cloaking in Thin Plates [J].

Farhat, Mohamed ;

Guenneau, Sebastien ;

Enoch, Stefan .

PHYSICAL REVIEW LETTERS, 2009, 103 (02)

[9] Cloaking bending waves propagating in thin elastic plates [J].

Farhat, Mohamed ;

Guenneau, Sebastien ;

Enoch, Stefan ;

Movchan, Alexander B. .

PHYSICAL REVIEW B, 2009, 79 (03)

[10]

Gioncu V, 2011, EARTHQUAKE ENGINEERING FOR STRUCTURAL DESIGN, P1

← 1 2 →