TY - JOUR
T1 - A multi-frequency piezoelectric vibration energy harvester with liquid filled container as the proof mass
AU - Liu, Donghuan
AU - Li, Haisheng
AU - Feng, Hang
AU - Yalkun, Torhonjan
AU - Hajj, Muhammad R.
N1 - Publisher Copyright:
© 2019 Author(s).
PY - 2019/5/27
Y1 - 2019/5/27
N2 - The performance of a vibration energy harvester consisting of a beam with a water-filled container as the tip mass is investigated. Particular attention is paid to the capability of this system to harvest energy over a broader range of frequencies compared to the traditional beam with a solid tip mass system. The broadening is due to geometric, inertial, damping, flow nonlinearities, or a combination of them. These nonlinearities cause energy exchange between the system's modes through internal resonances leading to nonlinear periodic, or periodically or chaotically modulated responses over a relatively broad range of excitation frequencies. The results show an output voltage response that has two or more resonance peaks in comparison to the traditional harvester, which has only one peak near the resonance frequency. The system's parameters including the excitation frequency and amplitude and the water depth to container diameter ratio can be used to control the frequency bandwidth over which energy is harvested.
AB - The performance of a vibration energy harvester consisting of a beam with a water-filled container as the tip mass is investigated. Particular attention is paid to the capability of this system to harvest energy over a broader range of frequencies compared to the traditional beam with a solid tip mass system. The broadening is due to geometric, inertial, damping, flow nonlinearities, or a combination of them. These nonlinearities cause energy exchange between the system's modes through internal resonances leading to nonlinear periodic, or periodically or chaotically modulated responses over a relatively broad range of excitation frequencies. The results show an output voltage response that has two or more resonance peaks in comparison to the traditional harvester, which has only one peak near the resonance frequency. The system's parameters including the excitation frequency and amplitude and the water depth to container diameter ratio can be used to control the frequency bandwidth over which energy is harvested.
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U2 - 10.1063/1.5089289
DO - 10.1063/1.5089289
M3 - Article
AN - SCOPUS:85066794708
SN - 0003-6951
VL - 114
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 21
M1 - 213902
ER -