Finite element analysis of a thin piezoelectric bimorph with a metal shim using solid direct-piezoelectric and shell inverse-piezoelectric coupling with pseudo direct-piezoelectric evaluation

Ramegowda, Prakasha Chigahalli; Ishihara, Daisuke; Takata, Rei; Niho, Tomoya; Horie, Takeshi

doi:10.1016/j.compstruct.2020.112284

Cited by 21 publications

(9 citation statements)

References 54 publications

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“…The silicone rubber layers can be analyzed as an elastic body with electrical boundary conditions. Therefore, a pseudo-piezoelectric technique [14][15][16] is used to consider the electrode and silicone rubber.…”

Section: Structure -Piezoelectric -Circuitmentioning

confidence: 99%

Hierarchical Modeling and Finite Element Analysis of Piezoelectric Energy Harvester From Structure-Piezoelectric-Circuit Interaction

Ramegowda¹,

Ishihara²,

Takata³

et al. 2021

14th WCCM-ECCOMAS Congress

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The piezoelectric energy harvesting devices for the conversion of mechanical vibration into electric energy via a flexible piezoelectric energy harvesting (FPED) structure have gained greater attention. Here, the large deformation of the FPED structure causes a strong interaction with the electric field (direct-piezoelectric effect) and structural field (inverse-piezoelectric effect), and vice-versa. Also an electrical circuit is attached to the electrodes covering the piezoelectric layers. This becomes a three-way coupling of the structure, the electromechanical effect of the piezoelectric material, and the electrical circuit. A mathematical and numerical model of the complex physical system of the involved multiphysics coupling characteristics in order to predict the operational properties and to increase the performance is very important. The presentation will discuss a partitioned coupling algorithm based hierarchical decomposition using finite element method for piezoelectric energy harvesting from structurepiezoelectric-circuit interaction. Results obtained with the finite element analysis are compared with the experimental results of PEHDs with base excitation reported in the literature.

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Section: Structure -Piezoelectric -Circuitmentioning

confidence: 99%

Hierarchical Modeling and Finite Element Analysis of Piezoelectric Energy Harvester From Structure-Piezoelectric-Circuit Interaction

Ramegowda¹,

Ishihara²,

Takata³

et al. 2021

14th WCCM-ECCOMAS Congress

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“…Chen et al [22] constructed a single DoF lumped parameter model, which was found to well match their experimental results. On the other hand, research works have reported formulations focused on the improvement of the modelling accuracy of nonlinear vibrating structures with piezoelectric elements using the FE method, but do not consider for an external electrical circuit [23]. Additionally, studies investigated the energy harvested from the piezoelectric materials attempting to accurately model the general problem [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigation of the energy harvesting performance of electromechanically coupled piezoelectric prestressed beams subjected to nonlinear vibrations

Kardarakos

Chrysochoidis

Varelis

et al. 2023

Smart Mater. Struct.

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Τhe piezoelectric energy harvesting from nonlinear vibrating structures has greatly attracted the attention of scientific community over the last decades, as it seems to provide one of the more promising ways for high electromechanical energy conversion. Current study deals with the development of a robust and accurate numerical tool capable of modelling and designing piezoelectric structures undergoing severe nonlinear vibrations. Specifically, a coupled multi-field generalized nonlinear mechanics framework for piezoelectric beams and plates subjected to initial stresses and large rotations, extended to include passive external electric circuits in order to predict the dynamic response of the structure and the power generated at the external resistive load. An experimental setup was also developed providing great correlations with the numerical results in case of a vibrating axially prestressed composite beam under the prebuckling regime. At the end, a computational investigation was performed studying the complex dynamic behavior of the piezoelectric beam, in the postbuckling regime. The model successfully captures the measured energy harvesting response of the beam including additional effects induced by the asymmetric configuration of the piezoelectric film.

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“…Previous studies used various simplified models for this configuration for both analytical and numerical approaches. However, a thin cantilevered piezoelectric bimorph sensor can have a complicated three-dimensional (3-D) distribution of the electric field in the thin piezoelectric continuum [25].…”

Section: Introductionmentioning

confidence: 99%

Importance of Three-Dimensional Piezoelectric Coupling Modeling in Quantitative Analysis of Piezoelectric Actuators

Ishihara¹,

Ramegowda²,

Aikawa³

et al. 2023

Computer Modeling in Engineering &Amp; Sciences

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This paper demonstrates the importance of three-dimensional (3-D) piezoelectric coupling in the electromechanical behavior of piezoelectric devices using three-dimensional finite element analyses based on weak and strong coupling models for a thin cantilevered piezoelectric bimorph actuator. It is found that there is a significant difference between the strong and weak coupling solutions given by coupling direct and inverse piezoelectric effects (i.e., piezoelectric coupling effect). In addition, there is significant longitudinal bending caused by the constraint of the inverse piezoelectric effect in the width direction at the fixed end (i.e., 3-D effect). Hence, modeling of these effects or 3-D piezoelectric coupling modeling is an electromechanical basis for the piezoelectric devices, which contributes to the accurate prediction of their behavior.

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Finite element analysis of a thin piezoelectric bimorph with a metal shim using solid direct-piezoelectric and shell inverse-piezoelectric coupling with pseudo direct-piezoelectric evaluation

Cited by 21 publications

References 54 publications

Hierarchical Modeling and Finite Element Analysis of Piezoelectric Energy Harvester From Structure-Piezoelectric-Circuit Interaction

Hierarchical Modeling and Finite Element Analysis of Piezoelectric Energy Harvester From Structure-Piezoelectric-Circuit Interaction

Numerical and experimental investigation of the energy harvesting performance of electromechanically coupled piezoelectric prestressed beams subjected to nonlinear vibrations

Importance of Three-Dimensional Piezoelectric Coupling Modeling in Quantitative Analysis of Piezoelectric Actuators

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