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Title: Asymmetric wave transmission in a diatomic acoustic/elastic metamaterial

Abstract

Asymmetric acoustic/elastic wave transmission has recently been realized using nonlinearity, wave diffraction, or bias effects, but always at the cost of frequency distortion, direction shift, large volumes, or external energy. Based on the self-coupling of dual resonators, we propose a linear diatomic metamaterial, consisting of several small-sized unit cells, to realize large asymmetric wave transmission in low frequency domain (below 1 kHz). The asymmetric transmission mechanism is theoretically investigated, and numerically verified by both mass-spring and continuum models. This passive system does not require any frequency conversion or external energy, and the asymmetric transmission band can be theoretically predicted and mathematically controlled, which extends the design concept of unidirectional transmission devices.

Authors:
;  [1]
  1. Department of Mechanical Engineering, The University of Akron, Akron, Ohio 44325-3903 (United States)
Publication Date:
OSTI Identifier:
22598865
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 120; Journal Issue: 7; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACOUSTICS; ASYMMETRY; CONVERSION; DIFFRACTION; ELASTICITY; METAMATERIALS; NONLINEAR PROBLEMS; RESONATORS; SPRINGS; TRANSMISSION; WAVE PROPAGATION

Citation Formats

Li, Bing, and Tan, K. T., E-mail: ktan@uakron.edu. Asymmetric wave transmission in a diatomic acoustic/elastic metamaterial. United States: N. p., 2016. Web. doi:10.1063/1.4961209.
Li, Bing, & Tan, K. T., E-mail: ktan@uakron.edu. Asymmetric wave transmission in a diatomic acoustic/elastic metamaterial. United States. doi:10.1063/1.4961209.
Li, Bing, and Tan, K. T., E-mail: ktan@uakron.edu. 2016. "Asymmetric wave transmission in a diatomic acoustic/elastic metamaterial". United States. doi:10.1063/1.4961209.
@article{osti_22598865,
title = {Asymmetric wave transmission in a diatomic acoustic/elastic metamaterial},
author = {Li, Bing and Tan, K. T., E-mail: ktan@uakron.edu},
abstractNote = {Asymmetric acoustic/elastic wave transmission has recently been realized using nonlinearity, wave diffraction, or bias effects, but always at the cost of frequency distortion, direction shift, large volumes, or external energy. Based on the self-coupling of dual resonators, we propose a linear diatomic metamaterial, consisting of several small-sized unit cells, to realize large asymmetric wave transmission in low frequency domain (below 1 kHz). The asymmetric transmission mechanism is theoretically investigated, and numerically verified by both mass-spring and continuum models. This passive system does not require any frequency conversion or external energy, and the asymmetric transmission band can be theoretically predicted and mathematically controlled, which extends the design concept of unidirectional transmission devices.},
doi = {10.1063/1.4961209},
journal = {Journal of Applied Physics},
number = 7,
volume = 120,
place = {United States},
year = 2016,
month = 8
}
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