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

Carta, G and Jones, IS and Movchan, NV and Movchan, AB and Nieves, MJ (2017) “Deflecting elastic prism” and unidirectional localisation for waves in chiral elastic systems. Scientific Reports, 7. ISSN 2045-2322

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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.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Maritime and Mechanical Engineering
Publisher: Nature Publishing Group
Date Deposited: 10 Feb 2017 10:08
Last Modified: 10 Feb 2017 10:08
DOI or Identification number: 10.1038/s41598-017-00054-6
URI: http://researchonline.ljmu.ac.uk/id/eprint/5496

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