Topological surface wave metamaterials for robust vibration attenuation and energy harvesting
Abstract
We propose topological metamaterials working in Hertz frequency range, constituted of concrete pillars on the soil ground in a honeycomb lattice. Based on the analog of the quantum valley Hall effect, a non-trivial bandgap is formed by breaking the inversion symmetry of the unit cell. A topological interface is created between two different crystal phases whose robustness against various defects and disorders is quantitatively analyzed. Finally, we take advantage of the robust and compact topological edge state for designing a harvesting energy device. The results demonstrate the functionality of the proposed structure for both robust surface vibration reduction and energy harvesting.
Details
- Organisationseinheit(en)
-
Institut für Photonik
- Externe Organisation(en)
-
Tongji University
Universite de Bourgogne
Bauhaus-Universität Weimar
Université de Lille 1
- Typ
- Artikel
- Journal
- Mechanics of Advanced Materials and Structures
- Band
- 29
- Seiten
- 4759-4767
- Anzahl der Seiten
- 9
- ISSN
- 1537-6494
- Publikationsdatum
- 2022
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Tief- und Ingenieurbau, Allgemeine Mathematik, Allgemeine Materialwissenschaften, Werkstoffmechanik, Maschinenbau
- Elektronische Version(en)
-
https://hal.archives-ouvertes.fr/hal-03546302/file/5c5b9297-68b6-4fa4-adff-a01da7761dbd-author.pdf (Zugang:
Offen
)
https://doi.org/10.1080/15376494.2021.1937758 (Zugang: Geschlossen )
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