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Edge States and Topological Pumping in Stiffness Modulated Elastic Plates
Emanuele Riva, Matheus I. N. Rosa, Massimo Ruzzene
We demonstrate that modulations of the stiffness properties of an elastic plate along a spatial dimension induce edge states spanning non-trivial gaps characterized by integer valu…
Experimental observation of non-reciprocal band-gaps in a space-time modulated beam using a shunted piezoelectric array
Jacopo Marconi, Emanuele Riva, Matteo Di Ronco +3
In this work we experimentally achieve 1 kHz-wide directional band-gaps for elastic waves spanning a frequency range from approximately 8 to 11 kHz. One-way propagation is induced…
Topological bands and localized vibration modes in quasiperiodic beams
Raj Kumar Pal, Matheus I. N. Rosa, Massimo Ruzzene
We investigate a family of quasiperiodic continuous elastic beams, the topological properties of their vibrational spectra, and their relation to the existence of localized modes.…