Experimental observation of non-reciprocal band-gaps in a space-time modulated beam using a shunted piezoelectric array

29 Sep 2019 Marconi Jacopo Riva Emanuele Di Ronco Matteo Cazzulani Gabriele Braghin Francesco Ruzzene Massimo

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 by way of a periodic waveguide consisting in an aluminum beam partially covered by a tightly packed array of piezoelectric patches... (read more)

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  • APPLIED PHYSICS