scholarly journals Investigation on Phase Shifting Effect on The Voltage Output of Piezoelectric Cantilever Array

2017 ◽  
Vol 210 ◽  
pp. 012038
Author(s):  
B Y Jing ◽  
K S Leong
Keyword(s):  
Phase Shifting ◽  
Voltage Output ◽  
Piezoelectric Cantilever ◽  
Cantilever Array

Experimental Study of a Self-Excited Piezoelectric Energy Harvester

2010 ◽  
Author(s):  
Hu¨seyin Dog˘us¸ Akaydın ◽  
Niell Elvin ◽  
Yiannis Andreopoulos
Keyword(s):  
Electrical Power ◽  
Natural Mode ◽  
Structural Vibrations ◽  
Energy Harvesters ◽  
Flow Energy ◽  
Piezoelectric Energy ◽  
Voltage Output ◽  
Aerodynamic Properties ◽  
Piezoelectric Cantilever ◽  
Measured Strain

In the present experimental work, we explore the possibility of using piezoelectric based fluid flow energy harvesters. These harvesters are self-excited and self-sustained in the sense that they can be used in steady uniform flows. The configuration consists of a piezoelectric cantilever beam with a cylindrical tip body which promotes sustainable, aero-elastic structural vibrations induced by vortex shedding and galloping. The structural and aerodynamic properties of the harvester alter the vibration amplitude and frequency of the piezoelectric beam and thus its electrical output. This paper presents results of energy-harvesting tests with one configuration of such a self-excited piezoelectric harvester using a PZT bimorph. In addition to the electrical voltage output, the strain on the surface of beam close to its clamped tip was also measured The measured strain and voltage output were perfectly correlated in the frequency range containing the first natural mode of vibration of the system. It was observed that about 0.24 mW of electrical power can be attained with this harvester in a uniform flow of 28 m/s.

Vibration Energy Harvester with Sustainable Power Based on a Single-Crystal Piezoelectric Cantilever Array

2012 ◽  
Vol 12 (8) ◽  
pp. 6283-6286 ◽  
Author(s):  
Moonkeun Kim ◽  
Sang-kyun Lee ◽  
Yong-Hyun Ham ◽  
Yil Suk Yang ◽  
Jong-Kee Kwon ◽  
...  
Keyword(s):  
Single Crystal ◽  
Energy Harvester ◽  
Vibration Energy ◽  
Vibration Energy Harvester ◽  
Piezoelectric Cantilever ◽  
Cantilever Array ◽  
Sustainable Power

scholarly journals Biomimetic acoustic sensor based on piezoelectric cantilever array

2012 ◽  
Vol 9 (11) ◽  
pp. 945-950 ◽  
Author(s):  
Shin Hur ◽  
Jun-Hyuk Kwak ◽  
Youngdo Jung ◽  
Young Hwa Lee
Keyword(s):  
Acoustic Sensor ◽  
Piezoelectric Cantilever ◽  
Cantilever Array

A vibration energy harvester using AlN piezoelectric cantilever array

2015 ◽  
Vol 142 ◽  
pp. 47-51 ◽  
Author(s):  
Xingqiang Zhao ◽  
Zhengguo Shang ◽  
Guoxi Luo ◽  
Licheng Deng
Keyword(s):  
Energy Harvester ◽  
Vibration Energy ◽  
Vibration Energy Harvester ◽  
Piezoelectric Cantilever ◽  
Cantilever Array

Structure Design and Simulation Analysis of Multiple Micro Piezoelectric Cantilevers

2013 ◽  
Vol 562-565 ◽  
pp. 1208-1213
Author(s):  
An Ran Jiang ◽  
Shi Qiao Gao ◽  
Feng Lin Yao ◽  
Yun Li He
Keyword(s):  
Resonant Frequency ◽  
Structural Design ◽  
Simulation Analysis ◽  
Structure Design ◽  
The Finite Element Method ◽  
Frequency Range ◽  
Piezoelectric Cantilever ◽  
Generation Capacity ◽  
Cantilever Array ◽  
Piezoelectric Cantilevers

In order to effectively capture the environment vibration energy, convert it into electricity and supply energy for the microelectronics devices, multiple micro piezoelectric cantilevers are designed. It is composed of more than one piezoelectric cantilever array, which broaden the resonant frequency band of the piezoelectric vibrator, and it can produce resonance or similar to the resonance in a frequency range. Compared to a single piezoelectric cantilever, multiple piezoelectric cantilevers can effectively broaden the resonant frequency and improve the piezoelectric power generation capacity. The simulation results show that the finite element method can provide important theoretical guidance for the structural design of multiple micro piezoelectric cantilevers.

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