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Bending and Vibration Analysis of Flexoelectric Beam Structure on Linear Elastic Substrates

With the development of micro-nanotechnology, smart electronic devices are being updated and developed, and more and more flexoelectric sensors, actuators, and energy harvesters attached to elastic substrates have attracted a surge of interest due to unique features at the nano-scale. In this paper,...

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Detalles Bibliográficos
Autores principales: Zhang, Maomao, Zhou, Zhidong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9230112/
https://www.ncbi.nlm.nih.gov/pubmed/35744529
http://dx.doi.org/10.3390/mi13060915
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author Zhang, Maomao
Zhou, Zhidong
author_facet Zhang, Maomao
Zhou, Zhidong
author_sort Zhang, Maomao
collection PubMed
description With the development of micro-nanotechnology, smart electronic devices are being updated and developed, and more and more flexoelectric sensors, actuators, and energy harvesters attached to elastic substrates have attracted a surge of interest due to unique features at the nano-scale. In this paper, the static bending behavior and vibration characteristics of a flexoelectric beam structure based on a linear elastic substrate under a magnetic field environment are investigated. Based on the electrical Gibbs free energy density, the governing equations and boundary conditions of structures are derived by using the Euler–Bernoulli beam theory and the Hamilton’s variational principle. The expressions of the deflection and the induced electric potential of the beam structure are expressed analytically. The natural frequency of the beam under the open-circuit electrical conditions with surface electrodes (OCI) are obtained after further extending the solution. The results show that the flexoelectric effect, the linear elastic substrate, and the magnetic field have significant effects on the static bending and vibration behaviors of the flexoelectric beam which are beneficial for designing and developing flexoelectric devices with elastic substrates.
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spelling pubmed-92301122022-06-25 Bending and Vibration Analysis of Flexoelectric Beam Structure on Linear Elastic Substrates Zhang, Maomao Zhou, Zhidong Micromachines (Basel) Article With the development of micro-nanotechnology, smart electronic devices are being updated and developed, and more and more flexoelectric sensors, actuators, and energy harvesters attached to elastic substrates have attracted a surge of interest due to unique features at the nano-scale. In this paper, the static bending behavior and vibration characteristics of a flexoelectric beam structure based on a linear elastic substrate under a magnetic field environment are investigated. Based on the electrical Gibbs free energy density, the governing equations and boundary conditions of structures are derived by using the Euler–Bernoulli beam theory and the Hamilton’s variational principle. The expressions of the deflection and the induced electric potential of the beam structure are expressed analytically. The natural frequency of the beam under the open-circuit electrical conditions with surface electrodes (OCI) are obtained after further extending the solution. The results show that the flexoelectric effect, the linear elastic substrate, and the magnetic field have significant effects on the static bending and vibration behaviors of the flexoelectric beam which are beneficial for designing and developing flexoelectric devices with elastic substrates. MDPI 2022-06-09 /pmc/articles/PMC9230112/ /pubmed/35744529 http://dx.doi.org/10.3390/mi13060915 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Maomao
Zhou, Zhidong
Bending and Vibration Analysis of Flexoelectric Beam Structure on Linear Elastic Substrates
title Bending and Vibration Analysis of Flexoelectric Beam Structure on Linear Elastic Substrates
title_full Bending and Vibration Analysis of Flexoelectric Beam Structure on Linear Elastic Substrates
title_fullStr Bending and Vibration Analysis of Flexoelectric Beam Structure on Linear Elastic Substrates
title_full_unstemmed Bending and Vibration Analysis of Flexoelectric Beam Structure on Linear Elastic Substrates
title_short Bending and Vibration Analysis of Flexoelectric Beam Structure on Linear Elastic Substrates
title_sort bending and vibration analysis of flexoelectric beam structure on linear elastic substrates
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9230112/
https://www.ncbi.nlm.nih.gov/pubmed/35744529
http://dx.doi.org/10.3390/mi13060915
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