An optimization study on $$\left(B{a}_{0.85}C{a}_{0.15}\right)\left(Z{r}_{0.1}T{i}_{0.9}\right){O}_{3}$$-based piezoelectric energy-harvester using finite element method

2021 ◽  
Author(s):  
Puneet Azad ◽  
Saptarshi Karmakar ◽  
Anuruddh Kumar ◽  
Sobhy M. Ibrahim ◽  
Rahul Vaish
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Energy Harvester ◽  
Piezoelectric Energy ◽  
Optimization Study ◽  
Element Method

scholarly journals Design and Evaluation of a Piezoelectric Energy Harvester Produced with a Finite Element Method

2010 ◽  
Vol 11 (5) ◽  
pp. 206-211 ◽  
Author(s):  
Chul-Min Kim ◽  
Chang-Il Kim ◽  
Joo-Hee Lee ◽  
Jong-Hoo Paik ◽  
Jeong-Ho Cho ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Energy Harvester ◽  
Piezoelectric Energy ◽  
Element Method

Evaluation and Validation of a Multiphysics Finite Element Model for a Piezoelectric Energy Harvester

2021 ◽  
Author(s):  
Andrew Melro ◽  
Kefu Liu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Model ◽  
Energy Harvester ◽  
Proof Mass ◽  
Experimental Testing ◽  
Element Model ◽  
Load Resistance ◽  
Piezoelectric Energy ◽  
The Finite Element Model

This paper explores the applicability of using the multiphysics finite element method to model a piezoelectric energy harvester. The piezoelectric energy harvester under consideration consists of a stainless-steel cantilever beam attached by a piezoelectric ceramic patch. Two configurations are considered: one without a proof mass and one with a proof mass. Comsol Multiphysics software is used to simultaneously model three physics: the solid mechanics, the electrostatics, and the electrical circuit physics. Several key relationships are investigated to predict the behaviours of the piezoelectric energy harvester. The effects of the electrical load resistance and a proof mass on the performance of a piezoelectric energy harvester are evaluated. Experimental testing is conducted to validate the results found by the finite element model. Overall, the results from the finite element model closely match those from the experimental testing. It is found that increasing the load resistance of the piezoelectric energy harvester causes an increase in voltage across the load resistor, and matching the impedance yields the maximum power output. Increasing the proof mass reduces the fundamental frequency that results in an increase of the displacement transmissibility and the impedance matched resistance. The study shows that the multiphysics finite element method is effective to model piezoelectric energy harvesters.

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