scholarly journals MEMS Power Receiver using Piezoelectric Cantilever Beams and Interdigitated Electrodes

2006 ◽  
Author(s):  
Bor-Shun Lee ◽  
Jyun-Jhang He ◽  
Wen-Jong Wu ◽  
Wen-Pin Shih
Keyword(s):  
Cantilever Beams ◽  
Interdigitated Electrodes ◽  
Piezoelectric Cantilever

Optimization of the Energy Conversion Efficiency by Bending Deflection Piezoelectric Cantilever Beams

2020 ◽  
Vol 76 (10) ◽  
pp. 948-953
Author(s):  
Chul Hee Ryu ◽  
Wonseop Hwang ◽  
Jae Yong Cho ◽  
Se Bin Kim ◽  
Kyung-Bum Kim ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Cantilever Beams ◽  
Piezoelectric Cantilever

Structural Design and Testing of a Butterfly Piezoelectric Generator with Multilayer Cantilever Beams

2013 ◽  
Vol 655-657 ◽  
pp. 823-829 ◽  
Author(s):  
Zhi Lin Ruan ◽  
Jun Jie Gong ◽  
Meng Chang Cai ◽  
Bing Huang
Keyword(s):  
Resonant Frequency ◽  
Cantilever Beam ◽  
Structural Design ◽  
Output Voltage ◽  
Experimental Setup ◽  
Cantilever Beams ◽  
Material Parameters ◽  
Piezoelectric Cantilever ◽  
Piezoelectric Generator ◽  
Design And Testing

In order to solve the inconsistent problem of multi-layer connection and vibration in each layer, a butterfly piezoelectric generator with multilayer cantilever beams is designed. The generator is mainly constituted by butterfly multilayer cantilever beams and mass subassembly two parts. Physical devices of butterfly generator and typical piezoelectric cantilever are fabricated respectively. The experimental setup is also put up for the testing of resonant frequency and output voltage. It can be found that each layer of multilayer generator has a similar output voltage and resonant frequency to the typical one with same geometric and material parameters. So each layer in butterfly piezoelectric generator can be simplified as a typical cantilever beam for researching and analyzing.

Exact Electroelastic Field of a Functionally Graded Piezoelectric Cantilever Beam Subjected to Pure Body Force Loading

2010 ◽  
Author(s):  
A. A. Emami ◽  
R. Hashemi ◽  
M. H. Kargarnovin ◽  
R. Naghdabadi
Keyword(s):  
Differential Equations ◽  
Body Force ◽  
Functionally Graded ◽  
The Body ◽  
Cantilever Beams ◽  
Exponential Distributions ◽  
Partial Differential ◽  
Numerical Studies ◽  
Piezoelectric Cantilever ◽  
Functionally Graded Piezoelectric

The electroelastic response of functionally graded piezoelectric cantilever beams which includes the effect of body force is presented in this paper. The material properties such as elastic compliance, piezoelectric and dielectric impermeability are assumed to be graded with different indices in the thickness direction according to exponential distributions. Systems of fourth order inhomogeneous partial differential equations (PDEs) which are satisfied by the stress and induction functions and involve the body force terms are derived. Spectral forms for electrical and mechanical variables in the x-axis are employed to convert the partial differential governing equations and the associated boundary conditions into sets of ordinary differential equations, and the resulting equations are solved in a closed form manner. Subsequently, in numerical studies, the effects of the material property graded indices are examined upon the electroelastic response of FGP cantilever beams under pure body force loadings.

Piezoelectric cantilever beams actuated by PZT sol-gel thin film

1996 ◽  
Vol 54 (1-3) ◽  
pp. 530-535 ◽  
Author(s):  
Ph Luginbuhl ◽  
G.-A Racine ◽  
Ph Lerch ◽  
B Romanowicz ◽  
K.G Brooks ◽  
...  
Keyword(s):  
Thin Film ◽  
Sol Gel ◽  
Cantilever Beams ◽  
Piezoelectric Cantilever

scholarly journals A Piezoelectric Wave Energy Harvester Using Plucking-Driven and Frequency Up-Conversion Mechanism

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8441
Author(s):  
Shao-En Chen ◽  
Ray-Yeng Yang ◽  
Zeng-Hui Qiu ◽  
Chia-Che Wu
Keyword(s):  
Wave Energy ◽  
Energy Harvester ◽  
Electrical Power ◽  
Composite Beams ◽  
Gear Train ◽  
Piezoelectric Composite ◽  
Maximum Output ◽  
Resistive Load ◽  
Cantilever Beams ◽  
Piezoelectric Cantilever

In this study, a plucking-driven piezoelectric wave energy harvester (PDPWEH) consisted of a buoy, a gear train frequency up-conversion mechanism, and an array of piezoelectric cantilever beams was developed. The gear train frequency up-conversion mechanism with compact components included a rack, three gears, and a geared cam provide less energy loss to improve electrical output. Six individual piezoelectric composite beams were plucked by geared cam to generate electrical power in the array of piezoelectric cantilever beams. A sol-gel method was used to create the piezoelectric composite beams. To investigate PDPWEH, a mathematical model based on the Euler–Bernoulli beam theory was derived. The developed PDPWEH was tested in a wave flume. The wave heights were set to 100 and 75 mm, the wave periods were set to 1.0, 1.5, and 2.0 s. The maximum output voltage of the measured value was 12.4 V. The maximum RMS voltage was 5.01 V, which was measured by connecting to an external 200 kΩ resistive load. The maximum average electrical power was 125.5 μw.

The Optimal Design and Analysis of Piezoelectric Cantilever Beams for Power Generation Devices

2005 ◽  
Vol 888 ◽  
Author(s):  
Dongna Shen ◽  
Jyoti Ajitsaria ◽  
Song-Yul Choe ◽  
Dong-Joo Kim
Keyword(s):  
Power Density ◽  
Cantilever Beam ◽  
Proof Mass ◽  
Rapid Development ◽  
High Stress ◽  
Ambient Vibration ◽  
Cantilever Beams ◽  
High Acceleration ◽  
Piezoelectric Cantilever ◽  
Cantilever Structure

ABSTRACTWith the rapid development of wireless remote sensor systems, battery is becoming the limiting factor in the lifetime of the device and miniaturization. As a way to eliminate battery in the system, the conversion of ambient vibration energy has been addressed. The piezoelectric cantilever beam with a proof mass was exploited for energy conversion since it can generate large strain and power density. The design of cantilever beams was optimized through numerical analysis and FEM simulation at higher acceleration condition. The investigated parameters influencing the output energy of piezoelectric bimorph cantilevers include dimensions of cantilever beam and proof mass. The resonant frequency and robustness of cantilever structure were also considered for enhancing power conversion efficiency and implementing devices at high acceleration condition. The power density generated by the optimized piezoelectric device was high enough (> 1200 μW/cm3) to operate microsensor systems. However, high stress near clamping area of cantilever beam could lead to the fracture at high acceleration condition.

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