Seismic waveguide of metamaterials

Sang Hoon Kim; Mukunda P. Das

doi:10.1142/S0217984912501059

Seismic waveguide of metamaterials

Sang Hoon Kim^*
, Mukunda P. Das

^*Corresponding author for this work

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

91 Citations (SciVal)

Abstract

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.

Original language	English
Article number	1250105
Journal	Modern Physics Letters B
Volume	26
Issue number	17
DOIs	https://doi.org/10.1142/S0217984912501059
Publication status	Published - 10 Jul 2012

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title = "Seismic waveguide of metamaterials",

abstract = "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.",

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AB - 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.

KW - Metamaterial

KW - acoustic properties

KW - seismic wave

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DO - 10.1142/S0217984912501059

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Seismic waveguide of metamaterials

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