Seismic Waveguide of Metamaterials

Abstract

We have developed a new method of an earthquake-resistant design to support conventional aseismic designs using acoustic metamaterials. We suggest a simple and practical method to reduce the amplitude of a seismic wave exponentially. Our device is an attenuator of a seismic wave. Constructing a cylindrical shell-type waveguide that creates a stop-band for the seismic wave, we convert the wave into an evanescent wave for some frequency range without touching the building we want to protect.

4 pages, 4 figures

References in corpus (3)

• Reverse Doppler Effect of Sound
• Elastic metamaterials with simultaneously negative effective shear modulus and mass density
• Acoustic Metameterial with Negative Modulus

Cited by in corpus (11)

• Architected lattices for simultaneous broadband attenuation of airborne sound and mechanical vibrations in all directions
• Controlling solid elastic waves with spherical cloaks
• Transformation seismology: composite soil lenses for steering surface elastic Rayleigh waves
• Control of Rayleigh-like waves in thick plate Willis metamaterials
• Effective model for elastic waves propagating in a substrate supporting a dense array of plates/beams with flexural resonances
• Enhancement of deep-subwavelength band gaps in flat spiral-based phononic metasurfaces using the trampoline phenomena
• Demultiplexing infrasound phonons with tunable magnetic lattices
• Experimental realization of phonon demultiplexing in three-dimensions
• Elastodynamic cloaking and field enhancement for soft spheres
• Acoustic Eaton lens array and its fluid application
• Static and dynamic analysis of auxetic three-dimensional curved metamaterials in both axial and circumferential directions