G. Carta
Gyro-elastic beams for the vibration reduction of long flexural system
Carta, G.; Jones, I.S.; Movchan, N.V.; Movchan, A.B.; Nieves, M.J.
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.
| Journal Article Type | Article |
|---|---|
| Acceptance Date | Jun 21, 2017 |
| Online Publication Date | Jul 19, 2017 |
| Publication Date | 2017-07 |
| Journal | Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences |
| Print ISSN | 1364-5021 |
| Publisher | The Royal Society |
| Peer Reviewed | Peer Reviewed |
| Volume | 473 |
| Issue | 2203 |
| DOI | https://doi.org/10.1098/rspa.2017.0136 |
| Keywords | chiral system, gyro-elastic beams, Floquet-Bloch waves, vibration isolation |
| Publisher URL | http://rspa.royalsocietypublishing.org/content/473/2203/20170136 |
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