Structurally embedded reflectors and mirrors for elastic wave focusing and energy harvesting

2017 ◽  
Vol 122 (16) ◽  
pp. 164503 ◽  
Author(s):  
S. Tol ◽  
F. L. Degertekin ◽  
A. Erturk
Keyword(s):  
Energy Harvesting ◽  
Elastic Wave ◽  
Wave Focusing

Enhanced energy transfer and conversion for high performance phononic crystal-assisted elastic wave energy harvesting

Nano Energy ◽  
2020 ◽  
Vol 78 ◽  
pp. 105226 ◽  
Author(s):  
Tae-Gon Lee ◽  
Soo-Ho Jo ◽  
Hong Min Seung ◽  
Sun-Woo Kim ◽  
Eun-Ji Kim ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Energy Harvesting ◽  
Elastic Wave ◽  
Wave Energy ◽  
High Performance ◽  
Phononic Crystal ◽  
Elastic Wave Energy

Embedded elastic wave mirrors for enhanced energy harvesting

2016 ◽  
Author(s):  
Serife Tol ◽  
Fahad T. Vora ◽  
F. Levent Degertekin ◽  
Alper Erturk
Keyword(s):  
Energy Harvesting ◽  
Elastic Wave

Gradient-index phononic crystals for omnidirectional acoustic wave focusing and energy harvesting

2020 ◽  
Vol 116 (23) ◽  
pp. 234101
Author(s):  
Jaeyub Hyun ◽  
Choon-Su Park ◽  
Jiho Chang ◽  
Wan-Ho Cho ◽  
Miso Kim
Keyword(s):  
Energy Harvesting ◽  
Acoustic Wave ◽  
Phononic Crystals ◽  
Gradient Index ◽  
Wave Focusing

Enhancement of elastic wave energy harvesting using adaptive piezo-lens

2017 ◽  
Vol 93 ◽  
pp. 255-266 ◽  
Author(s):  
K. Yi ◽  
M. Collet ◽  
S. Chesne ◽  
M. Monteil
Keyword(s):  
Energy Harvesting ◽  
Elastic Wave ◽  
Wave Energy ◽  
Elastic Wave Energy

Metamaterial Concepts for Structure-Borne Wave Energy Harvesting: Focusing, Funneling, and Localization

2012 ◽  
Author(s):  
M. Carrara ◽  
M. R. Cacan ◽  
J. Toussaint ◽  
M. J. Leamy ◽  
M. Ruzzene ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Wave Energy ◽  
Energy Harvester ◽  
Performance Enhancement ◽  
Lattice Structure ◽  
Piezoelectric Materials ◽  
Electrical Energy ◽  
Energy Localization ◽  
Wave Focusing ◽  
Piezoelectric Energy

Enhancement of structure-borne wave energy harvesting is investigated by exploiting metamaterial-based and metamaterial-inspired electroelastic systems. The concepts of wave focusing, funneling, and localization are leveraged to establish novel Metamaterial–Energy Harvester (MEH) configurations. The MEH system transforms the incoming structure-borne wave energy into electrical energy by coupling the metamaterial and electroelastic domains. The energy harvesting component of the work employs piezoelectric transduction due to the high power density and ease of application offered by piezoelectric materials. Therefore, in all MEH configurations studied in this work, the metamaterial system is combined with piezoelectric energy harvesting for enhanced electricity generation from waves propagating in elastic structures. Experiments are conducted to validate the dramatic performance enhancement in MEH systems as compared to using the same volume of piezoelectric patch in the absence of the metamaterial component. It is shown that MEH systems can be used for both broadband and tuned wave energy harvesting. Examples include (1) wave guiding using an acoustic funnel, (2) wave focusing using a metamaterial-inspired elliptical acoustic mirror (both for broadband energy harvesting), and (3) energy localization using an imperfection in a 2-D lattice structure (for tuned energy harvesting).

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