2012
DOI: 10.1063/1.4729875
|View full text |Cite
|
Sign up to set email alerts
|

A broadband vibrational energy harvester

Abstract: We propose a design for an energy harvester which has the potential to harvest vibrational energy over a broad range of ambient frequencies. The device uses two flexible ceramic piezoelectric elements arranged in a buckled configuration in the absence of vibrations. Experimental data show that this design allows enhanced harvesting of energy relative to a comparable cantilever design, both for periodic and stochastic vibrations. Moreover, the data suggest that this harvester has its peak energy generation when… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

0
56
0
1

Year Published

2014
2014
2024
2024

Publication Types

Select...
4
4
1

Relationship

0
9

Authors

Journals

citations
Cited by 89 publications
(57 citation statements)
references
References 29 publications
0
56
0
1
Order By: Relevance
“…Therefore, no wonder a large portion of the vibration energy harvesting research is currently developed towards designing harvesters capable of harvesting energy from broadband vibrations [4]. One proposed solution is introducing nonlinearities into the VEHs [5][6][7][8][9][10]. Such VEHs have nonlinear dynamic properties that shall influence the coupling between the base vibration and the harvester and thus broaden its working bandwidth.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, no wonder a large portion of the vibration energy harvesting research is currently developed towards designing harvesters capable of harvesting energy from broadband vibrations [4]. One proposed solution is introducing nonlinearities into the VEHs [5][6][7][8][9][10]. Such VEHs have nonlinear dynamic properties that shall influence the coupling between the base vibration and the harvester and thus broaden its working bandwidth.…”
Section: Introductionmentioning
confidence: 99%
“…Typical piezoelectric vibration energy harvesters (VEHs) are composed of a mass-spring-damper system with a transducer based on linear mechanical principles [4]. Such devices give an appreciable response amplitude only if the dominant ambient vibration frequency is close to the resonant frequency of the harvester [5], and the output drops dramatically when ambient vibration frequency is slightly different from the resonant frequency. Hence, it is impractical for the VEH, which is designed based on one resonant frequency mode with narrow bandwidth, to harvest energy from a variable environment.…”
Section: Introductionmentioning
confidence: 99%
“…A typical vibration energy harvester normally uses piezoelectric, electromagnetic, electrostatic, magnetoelectric or triboelectric transduction mechanisms. [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] However, regardless of the transduction mechanisms and novel structures, most devices suffer from a series of limits, such as a narrow working bandwidth and low output power in various motion directions. Thus, these harvesters are not effective in scavenging energy from the external vibrations with time-variant or three-dimensional (3D) motion directions, such as ocean wave, wind and human motion.…”
Section: Introductionmentioning
confidence: 99%