A new equivalent circuit for piezoelectrics with three losses and external loads

Dong, Xiquan; Majzoubi, Maryam; Choi, Munkee; Ma, Yuting; Hu, Minqiang; Jin, Long; Xu, Zhao‐Dong; Uchino, Kenji

doi:10.1016/j.sna.2016.12.026

Cited by 26 publications

(15 citation statements)

References 18 publications

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“…Dong X.X. et al [56] presented an equivalent circuit considering the dielectric, elastic and piezoelectric losses. They used six-terminal equivalent circuit to simulate the admittance spectra of piezoelectric actuator with four different load configurations (Fig.…”

Section: Energy Harvesting Circuitmentioning

confidence: 99%

Review on the Design, Geometry and Mechanical Modeling of Piezoelectric Energy Harvesting Structures

Zhao

Zuo

Chen

2017

ACRI

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In recent decades, with the increase of energy demand and the development of wireless and micro-electro-mechanical technology, research in the field of energy recovery has been paid more and more attention. Because of piezoelectric materials can transform mechanical strain energy into electrical charge, therefore, piezoelectric materials are the major method of energy scavenging. The research status of piezoelectric energy harvesting devices at domestic and overseas is presented in detail. This paper includes four aspects: Asingle-degree of freedom system, piezoelectric cantilever beam, energy harvesting circuit and topology optimization of energy harvester. The development perspective of the piezoelectric vibration energy harvester was summarized. The study will be helpful for the researchers who are engaged in the studying on the piezoelectric vibration energy harvesting.

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Section: Energy Harvesting Circuitmentioning

confidence: 99%

Review on the Design, Geometry and Mechanical Modeling of Piezoelectric Energy Harvesting Structures

Zhao

Zuo

Chen

2017

ACRI

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“…Since we proceed from the assumption that the materials of the piezoelectric element and structure are elastic, it seems reasonable to take into account energy losses due to the internal loss mechanisms both in the piezoelectric material and in the material of the main structure. The mechanisms of losses in piezoelectric materials have been studied for a rather long time, and in the literature there have been many relevant studies (Ala et al, 2014a, 2014b; Chen et al, 2006; Dong et al, 2017; Holland, 1967; Sherrit (1999); Uchino et al, 2011; Yuan et al, 2018). Holland (1967) and Uchino et al (2011) described in detail the losses in piezoelectric, which could be of three types: dielectric, elastic, and piezoelectric.…”

Section: Introductionmentioning

confidence: 99%

Development of an electrical analogue for modeling natural vibrations of a viscoelastic structure with piezoelectric element

Oshmarin

Sevodina

Iurlova

et al. 2021

Journal of Intelligent Material Systems and Structures

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This paper focuses on the development of an equivalent electrical model with lumped parameters capable of describing the natural vibrations of an electromechanical system comprising a viscoelastic structure with a piezoelectric element attached to its surface. The important advantage of the model is that it takes into account the energy losses associated with the viscoelastic properties of the material of the main structure. Two versions of the equivalent electric analogue of the initial electro-viscoelastic system in the form of electric circuits, the elements of which are described by the real or complex quantities, are considered. The approaches to the formulation of the problem of natural vibrations in the developed electric analogue are based on Kirchhoff’s laws for electric circuits and Ohm’s law for alternating current. Special attention is paid to the identification of model parameters. A procedure for determining the parameters for the equivalent electrical model is based on the results gained from the solution of a coupled problem of natural vibrations of the initial electromechanical system; problem formulation is also given here. The effectiveness and reliability of the developed equivalent electric models with lumped parameters for the determination of complex eigenfrequencies of the electromechanical system containing energy dissipation elements are demonstrated by analyzing the behavior of structures in the form of a rectangular plate and a semi-cylindrical shell.

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“…This conclusion is proved to be inaccurate because experimental results indicate there exists a conspicuous discrepancy between the mechanical quality factors at the resonance (QR) and the antiresonance (QA) in lead-zirconate-titanate (PZT)-based ceramics [11][12][13]. In recent, the equivalent circuit of piezoelectrics for k31 vibration mode considering all three losses have been proposed by researchers at Pennsylvania State University [14], which explains the variation of the mechanical quality factor between resonance and This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. For more information, see https://creativecommons.org/licenses/by-nc-nd/4.0/ This article has been accepted for publication in a future issue of this journal, but has not been fully edited.…”

Section: Introductionmentioning

confidence: 99%

Electromechanical Equivalent Circuit Model of a Piezoelectric Disk Considering Three Internal Losses

et al. 2020

Self Cite

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Heat generation by internal loss factors of piezoelectrics is one of the critical issues for high power density piezoelectric applications, such as ultrasonic motors, piezoelectric actuators and transducers. There are three types of internal losses in piezoelectric materials, namely dielectric, elastic and piezoelectric losses. In this paper, a decoupled equivalent circuit is proposed to emulate a piezoelectric disk in radial vibration mode considering all three types of internal losses. First, the decoupled equivalent circuit is derived according to the conventional electromechanical equivalent circuit model. Then, a piezoelectric disk configuration in radial vibration mode is explored and simulated. The resonance and antiresonance frequencies and their corresponding mechanical quality factors are achieved by the proposed circuit. In order to verify the accuracy of the simulation results, the piezoelectric disk is fabricated and tested. Simulation results with the new circuit exhibit a good agreement with experimental results. Finally, the equivalent circuit with only dielectric and elastic losses are simulated and compared which further validates the accuracy improvement of the new equivalent circuit considering all three losses.

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A new equivalent circuit for piezoelectrics with three losses and external loads

Cited by 26 publications

References 18 publications

Review on the Design, Geometry and Mechanical Modeling of Piezoelectric Energy Harvesting Structures

Review on the Design, Geometry and Mechanical Modeling of Piezoelectric Energy Harvesting Structures

Development of an electrical analogue for modeling natural vibrations of a viscoelastic structure with piezoelectric element

Electromechanical Equivalent Circuit Model of a Piezoelectric Disk Considering Three Internal Losses

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