Thumbnail
Access Restriction
Open

Author Li, Bing ♦ Tan, K. T.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ACOUSTICS ♦ ASYMMETRY ♦ CONVERSION ♦ DIFFRACTION ♦ ELASTICITY ♦ METAMATERIALS ♦ NONLINEAR PROBLEMS ♦ RESONATORS ♦ SPRINGS ♦ TRANSMISSION ♦ WAVE PROPAGATION
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.
ISSN 00218979
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-08-21
Publisher Place United States
Journal Journal of Applied Physics
Volume Number 120
Issue Number 7


Open content in new tab

   Open content in new tab