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“Deflecting elastic prism” and unidirectional localisation for waves in chiral elastic systems

Carta, G.; Jones, I.S.; Movchan, N.V.; Movchan, A.B.; Nieves, M.J.

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Authors

G. Carta

I.S. Jones

N.V. Movchan

A.B. Movchan



Abstract

For the first time, a design of a “deflecting elastic prism” is proposed and implemented for waves in a chiral medium. A novel model of an elastic lattice connected to a non-uniform system of gyroscopic spinners is designed to create a unidirectional wave pattern, which can be diverted by modifying the arrangement of the spinners within the medium. This important feature of the gyro-system is exploited to send a wave from a point of the lattice to any other point in the lattice plane, in such a way that the wave amplitude is not significantly reduced along the path. We envisage that the proposed model could be very useful in physical and engineering applications related to directional control of elastic waves.

Journal Article Type Article
Acceptance Date Dec 20, 2017
Publication Date Jan 31, 2017
Publicly Available Date Mar 29, 2024
Journal Scientific Reports
Print ISSN 2045-2322
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 7
Article Number 26
DOI https://doi.org/10.1038/s41598-017-00054-6
Keywords deflecting, elastic prism, unidirectional localisation, chiral elastic systems, waves.
Publisher URL https://www.nature.com/articles/s41598-017-00054-6

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