RT Journal Article
T1 On the Mechanism of Bandgap Formation in Beams With Periodic Arrangement of Beam-Like Resonators
A1 Serrano González, Óscar
A1 Fernández-Sáez, José
A1 Zaera, Ramón
AB Metastructures made of spring-mass resonators present a bandgap at the natural frequency of the resonator. This rule cannot be generalized for more complex resonators. This work analyzes the case of a metastructure composed of a periodic arrangement of vertical beams rigidly joined to a horizontal beam. The vertical beams work as resonators, and their natural frequencies play a strong role on the band structure of the whole system, however, different than the case with spring-mass resonators. Since this metastructure can be considered a lattice, Bloch’s theorem is applied to the unit cell and a numerical procedure based on the finite element method permits to obtain the dispersion curves. Illustrative results show the influence of the natural frequencies of the horizontal and vertical beams on the band structure.
PB American Society of Mechanical Engineers
SN 1048-9002
YR 2019
FD 2019-12-01
LK https://hdl.handle.net/10016/35779
UL https://hdl.handle.net/10016/35779
LA eng
NO This work was supported by the Ministerio de Economía y Competitividad de España (grant numbers DPI2014-57989-P and BES-2015-073720)
DS e-Archivo
RD 3 may. 2024