Journal ArticleDOI
A piezoelectric energy harvester with increased bandwidth based on beam flexural vibrations in perpendicular directions
Peng Li,Feng Jin,Jiashi Yang +2 more
TLDR
The frequency bandwidth through which energy can be harvested is roughly doubled when compared with conventional beam bimorph energy harvesters operating with flexural motion in one direction and one resonance only.Abstract:
We propose a new structure for piezoelectric energy harvesters. It consists of an elastic beam with two pairs of piezoelectric films operating with the fundamental flexural modes in perpendicular directions. A one-dimensional model is developed and used to analyze the proposed structure. The output power density is calculated and examined. Results show that, with simultaneous flexural motions in two perpendicular directions, the output power has two peaks close to each other resulting from the two fundamental flexural resonances. The distance between the two peaks can be adjusted through design to make the two peaks merge into one wide peak. Hence, the frequency bandwidth through which energy can be harvested is roughly doubled when compared with conventional beam bimorph energy harvesters operating with flexural motion in one direction and one resonance only.read more
Citations
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Journal ArticleDOI
Broadband Magnetic Composite Energy Harvester
Journal ArticleDOI
Theoretical analysis of a piezoelectric ceramic tube polarized tangentially for hydraulic vibration energy harvesting
TL;DR: In this article, a piezoelectric energy harvester, consisting of a long and thin lead zirconate titanate ceramic tube with tangential polarization, is proposed for scavenging vibration energy.
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Design of serial linkage-type vibration energy harvester with three resonant frequencies
TL;DR: In this article, a planar 3 degrees-of-freedom (DOF) serial linkage-type vibration energy harvester with a single proof mass was designed to generate electrical power at equally spaced three target resonant frequencies which can be chosen arbitrarily.
Energy Harvesting for Wireless and Less-Wired Sensors in Gas Turbines
TL;DR: In this paper, four types of energy harvesters aimed for gas turbine applications were developed during the thesis, including a semiconductor thermoelectric harvester for a location in the gas turbine with active cooling at 600°C, with 800°C wall temperature.
Journal ArticleDOI
3-Degree-of-freedom electromagnetic vibration energy harvester with serially connected leaf hinge joints:
TL;DR: In this paper, a planar 3-degree-of-freedom serial manipulator-type electromagnetic vibration energy harvester is presented, in which any desired ratio of power peaks and three targ...
References
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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.
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A review of power harvesting using piezoelectric materials (2003–2006)
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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.
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Toward Broadband Vibration-based Energy Harvesting
TL;DR: In this article, the authors reviewed the advances made in the past few years on broadband vibration-based energy harvesting solutions, covering broadband vibration based energy harvesting, and developed techniques to increase the bandwidth of vibrationbased energy harvesters has become the next important problem in energy harvesting.
Journal ArticleDOI
The Energy Harvesting Eel: a small subsurface ocean/river power generator
TL;DR: The Energy Harvesting Eel (Eel) is a new device that uses piezoelectric polymers to convert the mechanical flow energy, available in oceans and rivers, to electrical power as mentioned in this paper.
Journal ArticleDOI
Broadband piezoelectric energy harvesting devices using multiple bimorphs with different operating frequencies
TL;DR: Numerical results show that the OFB of the piezoelectric energy harvesting devices can be tailored by the connection patterns (i.e., in series and in parallel) among PBs.