Graded elastic metasurface for enhanced energy harvesting
In elastic wave systems, combining the powerful concepts of resonance and spatial grading within structured surface arrays enable resonant metasurfaces to exhibit broadband wave trapping, mode conversion from surface (Rayleigh) waves to bulk (shear) waves, and spatial frequency selection. Devices bu...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ab6062 |
| _version_ | 1797750359276388352 |
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| author | Jacopo M De Ponti Andrea Colombi Raffaele Ardito Francesco Braghin Alberto Corigliano Richard V Craster |
| author_facet | Jacopo M De Ponti Andrea Colombi Raffaele Ardito Francesco Braghin Alberto Corigliano Richard V Craster |
| author_sort | Jacopo M De Ponti |
| collection | DOAJ |
| description | In elastic wave systems, combining the powerful concepts of resonance and spatial grading within structured surface arrays enable resonant metasurfaces to exhibit broadband wave trapping, mode conversion from surface (Rayleigh) waves to bulk (shear) waves, and spatial frequency selection. Devices built around these concepts allow for precise control of surface waves, often with structures that are subwavelength, and utilise Rainbow trapping that separates the signal spatially by frequency. Rainbow trapping yields large amplifications of displacement at the resonator positions where each frequency component accumulates. We investigate whether this amplification, and the associated control, can be used to create energy harvesting devices; the potential advantages and disadvantages of using graded resonant devices as energy harvesters is considered. We concentrate upon elastic plate models for which the A _0 mode dominates, and take advantage of the large displacement amplitudes in graded resonant arrays of rods, to design innovative metasurfaces that trap waves for enhanced piezoelectric energy harvesting. Numerical simulation allows us to identify the advantages of such graded metasurface devices and quantify its efficiency, we also develop accurate models of the phenomena and extend our analysis to that of an elastic half-space and Rayleigh surface waves. |
| first_indexed | 2024-03-12T16:32:35Z |
| format | Article |
| id | doaj.art-8dfc13d912a54f57ad09422733bd2c2d |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:32:35Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-8dfc13d912a54f57ad09422733bd2c2d2023-08-08T15:26:50ZengIOP PublishingNew Journal of Physics1367-26302020-01-0122101301310.1088/1367-2630/ab6062Graded elastic metasurface for enhanced energy harvestingJacopo M De Ponti0https://orcid.org/0000-0002-6155-2031Andrea Colombi1https://orcid.org/0000-0003-2480-978XRaffaele Ardito2https://orcid.org/0000-0002-4271-9190Francesco Braghin3https://orcid.org/0000-0002-0476-4118Alberto Corigliano4https://orcid.org/0000-0002-1285-2724Richard V Craster5https://orcid.org/0000-0001-9799-9639Dept. of Civil and Environmental Engineering, Politecnico di Milano, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy; Dept. of Mechanical Engineering, Politecnico di Milano, Via Giuseppe La Masa, 1, I-20156 Milano, ItalyDept. of Civil, Environmental and Geomatic Engineering, Stefano-Franscini-Platz 5, 8093 Zürich, SwitzerlandDept. of Civil and Environmental Engineering, Politecnico di Milano, Piazza Leonardo da Vinci, 32, I-20133 Milano, ItalyDept. of Mechanical Engineering, Politecnico di Milano, Via Giuseppe La Masa, 1, I-20156 Milano, ItalyDept. of Civil and Environmental Engineering, Politecnico di Milano, Piazza Leonardo da Vinci, 32, I-20133 Milano, ItalyDept. of Mechanical Engineering, Imperial College London, South Kensington Campus, London, United Kingdom; Dept. of Mathematics, Imperial College London, South Kensington Campus, London, United KingdomIn elastic wave systems, combining the powerful concepts of resonance and spatial grading within structured surface arrays enable resonant metasurfaces to exhibit broadband wave trapping, mode conversion from surface (Rayleigh) waves to bulk (shear) waves, and spatial frequency selection. Devices built around these concepts allow for precise control of surface waves, often with structures that are subwavelength, and utilise Rainbow trapping that separates the signal spatially by frequency. Rainbow trapping yields large amplifications of displacement at the resonator positions where each frequency component accumulates. We investigate whether this amplification, and the associated control, can be used to create energy harvesting devices; the potential advantages and disadvantages of using graded resonant devices as energy harvesters is considered. We concentrate upon elastic plate models for which the A _0 mode dominates, and take advantage of the large displacement amplitudes in graded resonant arrays of rods, to design innovative metasurfaces that trap waves for enhanced piezoelectric energy harvesting. Numerical simulation allows us to identify the advantages of such graded metasurface devices and quantify its efficiency, we also develop accurate models of the phenomena and extend our analysis to that of an elastic half-space and Rayleigh surface waves.https://doi.org/10.1088/1367-2630/ab6062metamaterialsmetasurfacesmetawedgerainbow trappingenergy harvestingpiezoelectric materials |
| spellingShingle | Jacopo M De Ponti Andrea Colombi Raffaele Ardito Francesco Braghin Alberto Corigliano Richard V Craster Graded elastic metasurface for enhanced energy harvesting New Journal of Physics metamaterials metasurfaces metawedge rainbow trapping energy harvesting piezoelectric materials |
| title | Graded elastic metasurface for enhanced energy harvesting |
| title_full | Graded elastic metasurface for enhanced energy harvesting |
| title_fullStr | Graded elastic metasurface for enhanced energy harvesting |
| title_full_unstemmed | Graded elastic metasurface for enhanced energy harvesting |
| title_short | Graded elastic metasurface for enhanced energy harvesting |
| title_sort | graded elastic metasurface for enhanced energy harvesting |
| topic | metamaterials metasurfaces metawedge rainbow trapping energy harvesting piezoelectric materials |
| url | https://doi.org/10.1088/1367-2630/ab6062 |
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