Elastic foundation-introduced defective phononic crystals for tunable energy harvesting

G Zhang, Z He, S Wang, J Hong, Y Cong, S Gu - Mechanics of Materials, 2024 - Elsevier
Defective phononic crystals offer the advantage of concentrating elastic waves, thereby
enhancing the potential for piezoelectric energy harvesting (PEH). However, a key limitation …

Multifunctional application of nonlinear metamaterial with two-dimensional bandgap

KK Chen, GW Tu, XJ Dong, YF Huangfu… - Science China …, 2023 - Springer
Mechanical metamaterials with low-frequency and broadband bandgaps have great
potential for elastic wave control. Inspired by the ancient window mullions, a novel plate-type …

Nonlinear dynamics of asymmetric bistable energy harvesters

JP Norenberg, R Luo, VG Lopes, JVLL Peterson… - International Journal of …, 2023 - Elsevier
The paper investigates asymmetries effects over a nonlinear vibration energy harvester
dynamics. The asymmetric system performance is compared with symmetric ones. Different …

Waveguides induced by replacing defects in phononic crystal

Z Jiang, Y Zhou, S Zheng, J Liu, B Xia - International Journal of Mechanical …, 2023 - Elsevier
Phononic crystal, the artificial material, has shown the ability to guide the waves. In this
paper, we theoretically and experimentally realize interface transports by doping replacing …

Theoretical optimisation of a novel gas sensor using periodically closed resonators

ZA Zaky, M Al-Dossari, A Sharma, AS Hendy… - Scientific Reports, 2024 - nature.com
This study investigates using the phononic crystal with periodically closed resonators as a
greenhouse gas sensor. The transfer matrix and green methods are used to investigate the …

Achromatic elastic metalens for high-performance confocal piezoelectric energy harvesting

G Lee, J Park, W Choi, B Ji, M Kim, J Rho - Applied Physics Letters, 2023 - pubs.aip.org
In this study, we analytically, numerically, and experimentally investigated a high-
performance confocal piezoelectric energy harvesting system. We achieved a significantly …

Inverse design of a topological phononic beam with interface modes

O Ogun, J Kennedy - Journal of Physics D: Applied Physics, 2022 - iopscience.iop.org
Inspired by the idea of topological mechanics and geometric phase, the topological
phononic beam governed by topological invariants has seen growing research interest due …

Integrated triboelectric nanogenerator and radiative cooler for all-weather transparent glass surfaces

G Lee, H Kang, J Yun, D Chae, M Jeong… - Nature …, 2024 - nature.com
Sustainable energies from weather are the most ubiquitous and non-depleted resources.
However, existing devices exploiting weather-dependent energies are sensitive to weather …

Modulation instability and wavenumber bandgap breathers in a time layered phononic lattice

C Chong, B Kim, E Wallace, C Daraio - Physical Review Research, 2024 - APS
We provide the first experimental realization of wavenumber bandgap (q-gap) breathers.
Experiments are obtained in the setting of a time-periodic phononic lattice where the model …

Energy harvesting from low-frequency vibrations of hanger using PVDF: An experimental study and performance analysis

S Li, D Ren, P Guo, H Wang, B Xu, N Jiang - Energy, 2024 - Elsevier
Piezoelectric energy harvesters (PEH) are widely used to collect piezoelectric energy.
However, adapting to different engineering application environments is difficult for traditional …