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Gyro-elastic beams for the vibration reduction of long flexural systems

Carta, G and Jones, IS and Movchan, NV and Movchan, AB and Nieves, MJ (2017) Gyro-elastic beams for the vibration reduction of long flexural systems. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 473 (2203). ISSN 1364-5021

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Abstract

The paper presents a model of a chiral multi-structure incorporating gyro-elastic beams. Floquet–Bloch waves in periodic chiral systems are investigated in detail, with the emphasis on localization and the formation of standing waves. It is found that gyricity leads to low-frequency standing modes and generation of stop-bands. A design of an earthquake protection system is offered here, as an interesting application of vibration isolation. Theoretical results are accompanied by numerical simulations in the time-harmonic regime.

Item Type: Article
Uncontrolled Keywords: 01 Mathematical Sciences, 02 Physical Sciences, 09 Engineering
Subjects: Q Science > QA Mathematics
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Maritime and Mechanical Engineering
Publisher: Royal Society, The
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Date Deposited: 12 Oct 2017 09:08
Last Modified: 12 Oct 2017 09:10
DOI or Identification number: 10.1098/rspa.2017.0136
URI: http://researchonline.ljmu.ac.uk/id/eprint/7333

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