Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Matheus I. N. Rosa"'
Publikováno v:
Advanced Science, Vol 10, Iss 28, Pp n/a-n/a (2023)
Abstract The creation of a sink in a lossless wave‐bearing medium is achieved using complex frequency signals—harmonic excitations that exponentially grow in time. The wave sink, where incident waves are confined to a point, has attracted interes
Externí odkaz:
https://doaj.org/article/9e4f3e6e7312469aa4a7d7a4a504bac6
Publikováno v:
Advanced Science, Vol 10, Iss 6, Pp n/a-n/a (2023)
Abstract The acoustic properties of an acoustic crystal consisting of acoustic channels designed according to the gyroid minimal surface embedded in a 3D rigid material are investigated. The resulting gyroid acoustic crystal is characterized by a spi
Externí odkaz:
https://doaj.org/article/10ca3337734d4720994c0bba9887af61
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-10 (2021)
All aperiodic systems display an intrinsic degree of freedom, called the phason, and here it is shown that the phason space for twisted bilayered systems is a 2-torus. As a consequence, these systems host the physics of 4-dimensional integer quantum
Externí odkaz:
https://doaj.org/article/654a14cd42154a2eb4c8b40da70c8524
Material vs. structure: Topological origins of band-gap truncation resonances in periodic structures
While resonant modes do not exist within band gaps in infinite periodic materials, they may appear as in-gap localized edge modes once the material is truncated to form a finite periodic structure. Here, we provide an analysis framework that reveals
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9eadb10ade520458bc5679aba9780c5e
Autor:
Matheus I N Rosa, Massimo Ruzzene
We investigate the dynamic behavior of lattices with disorder introduced through non-local network connections. Inspired by the Watts–Strogatz small-world model, we employ a single parameter to determine the probability of local connections being r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1b9b148a8176fe7c2318a14f76300e1
Publikováno v:
Advanced Science. 10:2205723
The acoustic properties of an acoustic crystal consisting of acoustic channels designed according to the gyroid minimal surface embedded in a 3D rigid material are investigated. The resulting gyroid acoustic crystal is characterized by a spin-1 Weyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad99ad9ca23d7a35968ea74f63dd6d9c
https://doi.org/10.1002/advs.202205723
https://doi.org/10.1002/advs.202205723
We investigate the dynamics and topology of metastructures with quasiperiodically modulated local resonances. The concept is implemented on a LEGO beam featuring an array of tunable pillar-cone resonators. The versatility of the platform allows the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0d0305e8047e6d8efe87370b38b1b52
http://arxiv.org/abs/2101.08810
http://arxiv.org/abs/2101.08810
In this work, we investigate non-Hermitian (NH) elastic waveguides with periodically applied proportional feedback efforts, implemented through piezoelectric sensors and actuators. Using one-dimensional spectral models for longitudinal motion, it is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a7b9e4c422cf1bada760c319b91a4cd
Autor:
Matheus I. N. Rosa, Francesco Braghin, Alper Erturk, Emanuele Riva, Yiwei Xia, Gabriele Cazzulani, Massimo Ruzzene
We experimentally demonstrate temporal pumping of elastic waves in an electromechanical waveguide. An aluminum beam covered by an array of piezoelectric patches connected to shunt circuits with controllable resistances enables the spatial and tempora
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e19955e22c811403fee275898a3e62f4
http://arxiv.org/abs/2006.07348
http://arxiv.org/abs/2006.07348
Publikováno v:
Physical Review B. 101
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 valued Chern numbers. We also show that topological pumping is induced by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ed05ae790fa2fcf8822cc343bfed0dd
https://doi.org/10.1103/physrevb.101.094307
https://doi.org/10.1103/physrevb.101.094307