Transient response of a gyro-elastic structured medium: Unidirectional waveforms and cloaking

Garau, M, Nieves, MJ, Carta, G ORCID: 0000-0003-1325-8070 and Brun, M (2019) Transient response of a gyro-elastic structured medium: Unidirectional waveforms and cloaking. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 143. pp. 115-141.

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Abstract

The transient analysis of gyro-elastic structured media, composed of periodically placed masses interconnected by elastic rods and attached to gyroscopic spinners, is presented. The analysis is based on an asymptotic transient model, developed in this paper, that describes the interaction between a gyroscopic spinner and a mass embedded in a truss system. Several examples are given that illustrate the transient features of special dynamic phenomena, including unidirectional interfacial waves and highly localised waveforms. Two important applications of the model are also proposed, which demonstrate that gyro-elastic systems can be utilised to design an efficient structured topological insulator and a cloaking device for a discrete medium.

Item Type:	Article
Uncontrolled Keywords:	Gyroscopic spinners, Elastic lattices, Transient analysis, Interfacial waves, Edge waves, Cloaking
Depositing User:	Symplectic Admin
Date Deposited:	10 Dec 2019 11:30
Last Modified:	19 Jan 2023 00:13
DOI:	10.1016/j.ijengsci.2019.05.007
Open Access URL:	https://doi.org/10.1016/j.ijengsci.2019.05.007
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3065750