Journal ArticleDOI
Performance of a piezoelectric harvester in thickness-stretch mode of a plate
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TLDR
An analytical solution is derived from the three-dimensional equations of linear piezoelectricity that shows the role of each of the physical parameters in determining the performance of such a piezOElectric device, usually measured by the output power density, the power efficiency, or both.Abstract:
We studied mechanical-to-electrical power conversion of a piezoelectric plate driven mechanically into thickness-stretch vibrations. We have derived an analytical solution from the three-dimensional equations of linear piezoelectricity that shows the role of each of the physical parameters in determining the performance of such a piezoelectric device, usually measured by the output power density, the power efficiency, or both. Numerical results are included for illustrating the dependence of the device performance upon these physical parameters.read more
Citations
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Journal ArticleDOI
A review of power harvesting using piezoelectric materials (2003–2006)
Steven R. Anton,Henry A. Sodano +1 more
TL;DR: The field of power harvesting has experienced significant growth over the past few years due to the ever-increasing desire to produce portable and wireless electronics with extended lifespans as mentioned in this paper, and the use of batteries can be troublesome due to their limited lifespan, thus necessitating their periodic replacement.
Journal ArticleDOI
A piezoelectric power harvester with adjustable frequency through axial preloads
Yuantai Hu,Huan Xue,Hongping Hu +2 more
TL;DR: In this article, the axial preloading of a piezoelectric bimorph vibrating in the flexural mode was studied for a power harvester to effectively scavenge energy from ambient mechanical vibrations/noise with varying frequency spectra.
Journal ArticleDOI
Connected Vibrating Piezoelectric Bimorph Beams as a Wide-band Piezoelectric Power Harvester
Zengtao Yang,Jiashi Yang +1 more
TL;DR: In this paper, coupled flexural vibration of two elastically and electrically connected piezoelectric beams near resonance was analyzed for converting mechanical vibration energy to electrical energy. But the results were limited to a single beam.
Journal ArticleDOI
A spiral-shaped harvester with an improved harvesting element and an adaptive storage circuit
Hongping Hu,Huan Xue,Yuantai Hu +2 more
TL;DR: Numerical results show that the introduction of adc-dc converter in the storage circuit or a SSHI in the harvesting structure can raise the charging efficiency several times higher than a harvester without a dc- dc converter or an SSHI.
Journal ArticleDOI
Nonlinear behavior of a piezoelectric power harvester near resonance
TL;DR: Nonlinear effects of large deformations due to resonance are considered using a cubic theory of the displacement gradient and results on the output current and power are presented, which exhibit multivaluedness and jump phenomena.
References
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Book
Acoustic Fields and Waves in Solids
TL;DR: In this article, the authors apply the material developed in the Volume One to various boundary value problems (reflection and refraction at plane surfaces, composite media, waveguides and resonators).
Journal ArticleDOI
A study of low level vibrations as a power source for wireless sensor nodes
TL;DR: The goal of this paper is not to suggest that the conversion of vibrations is the best or most versatile method to scavenge ambient power, but to study its potential as a viable power source for applications where vibrations are present.
Journal ArticleDOI
Transmitting electric energy through a metal wall by acoustic waves using piezoelectric transducers
TL;DR: The feasibility of transmitting electric energy through a metal wall by propagating acoustic waves using piezoelectric transducers is examined by studying the efficiency of power transmission and its dependence upon the relevant system parameters for a simplified system consisting of an elastic plate sandwiched by two piez Zoelectric layers.
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