Multiband elastic wave energy localization for highly amplified piezoelectric energy harvesting using trampoline metamaterials

G Lee, J Park, W Choi, B Ji, M Kim, J Rho - Mechanical Systems and Signal …, 2023 - Elsevier
In this study, we investigate high-performance piezoelectric energy harvesting at multiband
frequencies. Previous harvesting platforms were limited to a high-frequency range and …

Piezoelectric energy harvesting using mechanical metamaterials and phononic crystals

G Lee, D Lee, J Park, Y Jang, M Kim, J Rho - Communications Physics, 2022 - nature.com
Mechanical metamaterials and phononic crystals enable localizing, focusing, and guiding of
elastic or acoustic waves in various ways. Here, we describe the physical mechanisms …

Enhanced metamaterial vibration for high-performance acoustic piezoelectric energy harvesting

W Sun, K Zhong, Y Liu, H Xiao, D Zhao, Z Yan… - Composites …, 2022 - Elsevier
The defect states of acoustic metamaterials are utilized for energy confinement and
harvesting of acoustic and elastic waves. Previous studies have concentrated on the …

Flexural wave energy harvesting by multi-mode elastic metamaterial cavities

TX Ma, QS Fan, ZY Li, C Zhang, YS Wang - Extreme Mechanics Letters, 2020 - Elsevier
In this paper, we design the elastic metamaterial cavities with multiple cavity modes for
harvesting the flexural wave energy. The metamaterial plate is formed by drilling periodic …

Metamaterial-inspired structures and concepts for elastoacoustic wave energy harvesting

M Carrara, MR Cacan, J Toussaint… - Smart Materials and …, 2013 - iopscience.iop.org
Enhancement of structure-borne wave energy harvesting is investigated by exploiting
metamaterial-based and metamaterial-inspired electroelastic systems. The concepts of …

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

TG Lee, SH Jo, HM Seung, SW Kim, EJ Kim, BD Youn… - Nano Energy, 2020 - Elsevier
A critical challenge in energy harvesting has been insufficient sustainable power generation
for practical applications, despite the benefits of self-powering and green-enabling …

Designing a phononic crystal with a defect for energy localization and harvesting: Supercell size and defect location

SH Jo, H Yoon, YC Shin, W Choi, CS Park… - International Journal of …, 2020 - Elsevier
Metamaterial-based energy harvesting (MBEH) has recently received much attention due to
its capability of amplifying input mechanical wave transferred to a piezoelectric energy …

[HTML][HTML] A graded metamaterial for broadband and high-capability piezoelectric energy harvesting

B Zhao, HR Thomsen, JM De Ponti, E Riva… - Energy Conversion and …, 2022 - Elsevier
This work proposes a graded metamaterial-based energy harvester integrating the
piezoelectric energy harvesting function targeting low-frequency ambient vibrations (< 100 …

Two-dimensional octagonal phononic crystals for highly dense piezoelectric energy harvesting

CS Park, YC Shin, SH Jo, H Yoon, W Choi, BD Youn… - Nano Energy, 2019 - Elsevier
Piezoelectric energy harvesting at multi-scales has received considerable attention as an
attractive powering technology which enables sustainable self-powered operation of small …

Reprogrammable acoustic metamaterials for multiband energy harvesting

Y Liu, D Zhao, Z Yan, W Sun, P Guo, T Tan - Engineering Structures, 2023 - Elsevier
Acoustic metamaterials are artificial materials that possess the remarkable ability to control
and manipulate acoustic waves, which makes them ideal for acoustic energy harvesting …