Garau, M, Nieves, MJ, Carta, G and Brun, M (2019) Transient response of a gyro-elastic structured medium: Unidirectional waveforms and cloaking. International Journal of Engineering Science, 143. 115 - 141. ISSN 0020-7225

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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
Additional Information: This is the final published version of the article (version of record). It first appeared online via Elsevier at - please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: Gyroscopic spinners; Elastic lattices; Transient analysis; Interfacial waves; Edge waves; Cloaking
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics
Divisions: Faculty of Natural Sciences > School of Computing and Mathematics
Depositing User: Symplectic
Date Deposited: 31 Jul 2019 08:37
Last Modified: 23 Sep 2019 09:06

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