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

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.

SUBMITTER: Carta G

PROVIDER: S-EPMC5549565 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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

Carta G G Jones I S IS Movchan N V NV Movchan A B AB Nieves M J MJ

Proceedings. Mathematical, physical, and engineering sciences 20170719 2203

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 simulat ...[more]

PMID: 28804257

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