Abstract
This paper presents a piezoelectric energy harvester using an eccentric cylinder undergoing bending–torsion vibration in low-speed water. It can harvest energy from water using vortex-induced vibration (VIV). A distributed parameter beam model with respect to the motion of the piezoelectric beam was established based on Euler–Bernoulli beam theory. The governing coupled equations of the harvester system were derived by Lagrange’s equations. The optimal configurations and work conditions of harvesters were numerically analyzed according to the above mathematical models. Experiments were designed and performed to verify the numerical results. The numerical results were in good agreement with the experiment results, which verifies the validity of the mathematical models. The harvester with bending–torsion vibration generated an output power of 0.3978 mW, which is 1.99 times of that of the harvester with a solid-cylinder tip undergoing bending only.
Highlights
The demand for intermittent low-power, wireless, and small electronic devices is growing
More and more scholars have focused on energy harvesting from vibration since the electric energy can be converted from vibration using piezoelectric materials [1]
Mitcheson et al [2] suggested that a piezoelectric harvester with a non-resonant structure was the best choice for harvesting energy from low frequency ambient vibration
Summary
The demand for intermittent low-power, wireless, and small electronic devices is growing. Abdelkefi et al [11] researched the phenomena of piezoelectric energy harvesting from freely oscillating cylinders undergoing vortex-induced vibration (VIV). As for the modeling of VIV-based energy harvesters, research on lift fluctuation and vortex interactions is necessary. The model was applied to analyze the VIV of a cylinder linearly and nonlinearly This was proven to be consistent with the practical situation by results of simulation al. Proven to beGoushcha consistentetwith the investigated practical situation by results ofmechanisms simulation of vortex interactions with flexible structures,the which were critical to fluidic electrical energy and experiment. A review of recent studies in the field of energy harvesting from aeroelastic vibrations with flexible structures, which were critical to fluidic electrical energy harvesting. The work conditions and cylinder configurations of harvester areare numerically discussions and and the harvester numericallyanalyzed analyzedand andexperimentally experimentally investigated
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
