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Multi-scale phononic systems and gyrobeams in earthquake protection
G. Carta1, I.S. Jones1, N.V. Movchan2, A.B. Movchan2, M.J. Nieves1
1Department of Maritime and Mechanical Engineering, Byrom St. Liverpool John Moores University, Liverpool L3, UK
2Department of Mathematical Sciences, Peach St., University of Liverpool, Liverpool L69 7ZL, UK
* Correspondence: Corresponding Author email: [email protected]
Abstract
A novel problem is considered for filtering of elastic flexural waves by chiral systems incorporating networks of gyrobeams. A gyrobeam is a solid whose flexural displacements are coupled through the equations of motion, and flexural vibrations are accompanied by a rotational motion. The talk will also present a comparison with the earlier results on the earthquake protection systems, which incorporated specially designed multi-scale systems of resonators into industrial structures. Theoretical investigations are accompanied by a series of numerical simulations and demonstrations.