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Artykuły w czasopismach na temat „Piezoceramic layers”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 31 lipca 2025

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1

Tikhonov A., Chugunov S., and Shishkovsky I.V. "Determination of the polymerization depths of lead-free piezoceramic pastes for UV 3D printing." Optics and Spectroscopy 130, no. 10 (2022): 1297. http://dx.doi.org/10.21883/eos.2022.10.54866.3825-22.

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In present study, the polymerization depths for the implementation of the laser stereolithography process in the system (oligomer - piezoceramics) on the wavelengths of 445-465 nm UV range were determined in the original BTO, KNN and NBT lead-free piezoceramic pastes. It was shown that powder pastes, which provide a polymerization depth more than 150 μm, are promising for using in 3D printing. Such depth was chosen to guarantee a sufficient overlap of neighboring layers during polymerization, at the laser beam velocity speed from 1 m/s and the distance between the laser paths of 50 μm. For NBT

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2

Wang, Jianjun, Lei Qin, Weijie Li, and Weibin Song. "Parametric Analysis and Optimization of Radially Layered Cylindrical Piezoceramic/Epoxy Composite Transducers." Micromachines 9, no. 11 (2018): 585. http://dx.doi.org/10.3390/mi9110585.

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Radially layered cylindrical piezoceramic/epoxy composite transducers have been designed by integrating the excellent performance of piezoelectric/polymer composites and the radial radiation ability of cylindrical configurations, which are promising in developing novel ultrasonic and underwater sound techniques. Our previous study has explored the effects of the external resistance on the electromechanical characteristics of the transducer, and obtained some valuable findings. To clearly understand the electromechanical characteristics of the transducer and to guide the device design, in this

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3

Тихонов, А., С. Чугунов та И. Шишковский. "Определение глубин полимеризации бессвинцовых пьезокерамических паст для УФ 3D печати". Оптика и спектроскопия 130, № 10 (2022): 1555. http://dx.doi.org/10.21883/os.2022.10.53625.3825-22.

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In present study, the polymerization depths for the implementation of the laser stereolithography process in the system (oligomer - piezoceramics) on the wavelengths of 445–465 nm UV range were determined in the original BTO, KNN and NBT lead-free piezoceramic pastes. It was shown that powder pastes, which provide a polymerization depth more than 150 µm, are promising for using in 3D printing. Such depth was chosen to guarantee a sufficient overlap of neighboring layers during polymerization, at the laser beam velocity speed from 1 m/s and the distance between the laser paths of 50 µm. For NBT

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4

Burdin, Dmitri A., Dmitri V. Chashin, Nikolai A. Ekonomov, Leonid Y. Fetisov, Vladimir L. Preobrazhensky, and Yuri K. Fetisov. "Low-Frequency Resonant Magnetoelectric Effects in Layered Heterostructures Antiferromagnet-Piezoelectric." Sensors 23, no. 13 (2023): 5901. http://dx.doi.org/10.3390/s23135901.

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Magnetic field sensors using magnetoelectric (ME) effects in planar ferromagnetic-piezoelectric heterostructures convert a magnetic field into an output voltage. The parameters of ME sensors are determined by characteristics of the magnetic constituent. In this work, the low-frequency ME effects in heterostructures comprising a layer of antiferromagnetic hematite α-Fe2O3 crystal with easy-plane anisotropy and a piezoelectric layer are studied. The effects arise due to a combination of magnetostriction and piezoelectricity because of mechanical coupling of the layers. The field dependences of m

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5

Shah, D. K., S. P. Joshi, and W. S. Chan. "Static structural response of plates with piezoceramic layers." Smart Materials and Structures 2, no. 3 (1993): 172–80. http://dx.doi.org/10.1088/0964-1726/2/3/005.

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6

Wang, H. R., X. Xie, Y. T. Hu, and J. Wang. "Weakly Nonlinear Characteristics of a Three-Layer Circular Piezoelectric Plate-Like Power Harvester Near Resonance." Journal of Mechanics 30, no. 1 (2013): 97–102. http://dx.doi.org/10.1017/jmech.2013.64.

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ABSTRACTThe nonlinear characteristics of a simply-supported three-layer circular piezoelectric plate-like power harvester near resonance are examined in the paper, where the energy-scavenging structure consists of two properly poled piezoceramic layers separated by a central metallic layer. The structure is subjected to a uniform harmonic pressure on the upper surface. Nonlinear effects of large deflection near resonance to induce the incidental in-plane extension are considered. Results on output powers are presented, which exhibit multi-valuedness and jump phenomena.

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7

Grigoryeva, Ludmila. "Transient responses in Piezoceramic Multilayer Actuators Taking into Account External Viscoelastic Layer." Strength of Materials and Theory of Structures, no. 105 (November 30, 2020): 255–66. http://dx.doi.org/10.32347/2410-2547.2020.105.255-266.

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The work develops a generalized approach to the study of thickness (radial) vibrations arising in the piezoceramic plates, cylinders, spheres under electrical loads. The state of the problem and the main approaches, used in the problems of studying the oscillations of electroelastic bodies, are described. The use of multilayer elements with electroded interface surfaces and variable direction of polarization of the layers increases the conversion efficiency of electrical energy into mechanical energy, so multilayer piezoceramic plates, cylinders, spheres with changing polarization directions w

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8

Supancic, Peter, Z. Wang, Walter Harrer, K. Reichmann, and Robert Danzer. "Strength and Fractography of Piezoceramic Multilayer Stacks." Key Engineering Materials 290 (July 2005): 46–53. http://dx.doi.org/10.4028/www.scientific.net/kem.290.46.

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Modern low-voltage piezoelectric actuators consist of a stack of piezoceramic layers (PZT) with metallic electrodes in between. Due to the use of these parts in automotive applications, a big but sensitive market is opened. During application mechanical stresses are an inherent loading of these electro-mechanical converter components. Therefore some strength of the actuators is necessary to guarantee a demanded life time. Bending and tensile tests were performed on commercial components to measure the strength in axial direction. Fracture surfaces were investigated with the methods of fractogr

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9

VELI, Yelda, Claudia SĂVESCU, Alexandru-Mihail MOREGA, and Daniel COMEAGĂ. "NUMERICAL ANALYSES ON THE RESPONSES OF UNIMORPH AND BIMORPH PIEZOELECTRIC HARVESTERS IN TIME DOMAIN." ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) 2022, no. 1 (2023): 1–7. http://dx.doi.org/10.36801/apme.2022.1.14.

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The paper presents the assessment of the electric output rendered by a unimorph and a bimorph piezoelectric harvester, with one and two active piezoceramic wafers, using numerical simulations. Expected sinusoidal voltages were obtained in a time-dependent study, with a time step corresponding to the eigenfrequency found after conducting an Eigenfrequency study. The terminal voltages obtained agree with the Euler-Bernoulli beam theory and with the distance of the piezoelectric layers from the neutral fiber. By adding an electric circuit node to the electric field problem to form a closed intern

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10

Shah, D. K., W. S. Chan, and S. P. Joshi. "Delamination detection and suppression in a composite laminate using piezoceramic layers." Smart Materials and Structures 3, no. 3 (1994): 293–301. http://dx.doi.org/10.1088/0964-1726/3/3/005.

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11

Grigorenko, A. Ya, and I. A. Loza. "Axisymmetric waves in layered hollow cylinders with axially polarized piezoceramic layers." International Applied Mechanics 47, no. 6 (2011): 707–13. http://dx.doi.org/10.1007/s10778-011-0495-5.

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12

Grigorenko, A. Ya, and I. A. Loza. "Nonaxisymmetric Waves in Layered Hollow Cylinders with Radially Polarized Piezoceramic Layers." International Applied Mechanics 49, no. 6 (2013): 641–49. http://dx.doi.org/10.1007/s10778-013-0597-3.

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13

Grigorenko, A. Ya, and I. A. Loza. "Nonaxisymmetric Waves in Layered Hollow Cylinders with Axially Polarized Piezoceramic Layers." International Applied Mechanics 50, no. 2 (2014): 150–58. http://dx.doi.org/10.1007/s10778-014-0619-9.

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14

Feng, Zhangbin, Ke Wang, Yukang Liu, Biao Han, and Deng-Guang Yu. "Piezoelectric Enhancement of Piezoceramic Nanoparticle-Doped PVDF/PCL Core-Sheath Fibers." Nanomaterials 13, no. 7 (2023): 1243. http://dx.doi.org/10.3390/nano13071243.

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Electrospinning is considered to be an efficient method to prepare piezoelectric thin films because of its ability to transform the phase of the polymers. A core-sheath structure can endow fibers with more functions and properties. In this study, fibers with a core-sheath structure were prepared using polyvinylidene fluoride (PVDF) included with nanoparticles (NPs) as the shell layer and polycaprolactone (PCL) as the core layer. Their mechanical and piezoelectric properties were studied in detail. During the course of the electrospinning process, PVDF was demonstrated to increase the amount of

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15

Shalimov, V. V., and P. N. Yakushev. "Metallic conduction in the nanoporous silicon layers on the PZT-ceramics surface." Izvestiya vysshikh uchebnykh zavedenii. Fizika, no. 9 (2022): 122–25. http://dx.doi.org/10.17223/00213411/65/9/122.

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Nanoporous silicon and ceramics based on lead zirconate titanate (PZT-ceramics) have unique properties in themselves. It is shown that their mechanochemical interaction makes it possible to create compositions with a metallic type of conductivity. The formation of conductive paths occurs when silicon particles wedged into microcracks, creating unique highly sensitive layers of piezoceramic compounds, incl. intercalates. Silicon atoms embedded deform the elementary cells of crystals and redistribute charges in them. The connection with the lattice is formed due to the transition of electrons to

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16

Koszewnik, Andrzej. "Analytical Modeling and Experimental Validation of an Energy Harvesting System for the Smart Plate with an Integrated Piezo-Harvester." Sensors 19, no. 4 (2019): 812. http://dx.doi.org/10.3390/s19040812.

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The literature on piezoelectric energy harvesting (PEH) is strongly focused on structures, like cantilever beams with piezoceramic layers, due to the fact that they are easily modelled and implemented. As compared to the number of studies dealing with the aforementioned case, research on 2D structures with an attached piezoceramic patch harvester is very limited. Thus, an analytical modeling and experimental validations of a piezo harvester structurally integrated on a thin plate with SFSF (Simply supported-Free-Simply supported-Free) boundary conditions is presented in this paper. The distrib

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17

Abramovich, H. "Deflection control of laminated composite beams with piezoceramic layers — closed form solutions." Composite Structures 43, no. 3 (1998): 217–31. http://dx.doi.org/10.1016/s0263-8223(98)00104-4.

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18

Deü, Jean-François, and Ayech Benjeddou. "Free-vibration analysis of laminated plates with embedded shear-mode piezoceramic layers." International Journal of Solids and Structures 42, no. 7 (2005): 2059–88. http://dx.doi.org/10.1016/j.ijsolstr.2004.09.003.

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19

Kusculuoglu, Ziya K., and Thomas J. Royston. "Nonlinear modeling of composite plates with piezoceramic layers using finite element analysis." Journal of Sound and Vibration 315, no. 4-5 (2008): 911–26. http://dx.doi.org/10.1016/j.jsv.2007.06.081.

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20

Shah, D. K., S. P. Joshi, and W. S. Chan. "Stress concentration reduction in a plate with a hole using piezoceramic layers." Smart Materials and Structures 3, no. 3 (1994): 302–8. http://dx.doi.org/10.1088/0964-1726/3/3/006.

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21

Bardzokas, D. I., L. A. Filshtinskii, and L. V. Shramko. "Homogeneous solutions of the electroelasticity equations for piezoceramic layers in R 3." Acta Mechanica 209, no. 1-2 (2009): 27–41. http://dx.doi.org/10.1007/s00707-009-0155-6.

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22

VELI, Yelda, Florin SĂFTOIU, and Alexandru M. MOREGA. "ANALIZA NUMERICĂ A UNUI TRADUCTOR PIEZOELECTRIC DE ULTRASUNET." ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) 2023, no. 1 (2024): 52–57. http://dx.doi.org/10.36801/apme.2023.1.7.

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The paper presents the numerical analysis of a piezoelectric ultrasound transducer intended for biological micro cavitation applications. The ultrasound source in a two-dimensional, simplified variant with axial symmetry is analyzed numerically. The natural frequencies and the eigenmodes of the deformation associated with these natural frequencies, respectively, the resonance frequency, are determined. For the study in dynamic mode, the piezoceramic layers are considered to be supplied with a sinusoidal voltage at the previously determined resonance frequency.

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23

Camerini, Isabel Giron, Luis Paulo Brasil de Souza, Paula Medeiros Proença Gouvea, and Arthur Martins Barbosa Braga. "Mechanical Strain, Temperature, and Misalignment Effects on Data Communication between Piezoceramic Ultrasonic Transducers." Sensors 24, no. 17 (2024): 5561. http://dx.doi.org/10.3390/s24175561.

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Acoustic waves can be used for wireless telemetry as an alternative to situations where electrical or optical penetrators are unsuitable. However, the response of the ultrasonic transducer can be greatly affected by temperature variations, mechanical deformations, misalignment between transducers, and multiple layers in the propagation zone. Therefore, this work sought to quantify such influences on communication between ultrasonic transducers. The experimental measurements were performed at the frequency where power transfer is maximized. Moreover, there were four experimental models, each wi

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24

Kusculuoglu, Z. Koray, and Thomas J. Royston. "Finite element formulation for composite plates with piezoceramic layers for optimal vibration control applications." Smart Materials and Structures 14, no. 6 (2005): 1139–53. http://dx.doi.org/10.1088/0964-1726/14/6/007.

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25

MHIRI, Mohamed Taha, Mnaouar CHOUCHANE, Mohamed GUERICH, and Walid LARBI. "Modeling and optimization of acantilevered energy harvester partially covered by a macro fiber vomposite patch." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 2 (2024): 9773–84. http://dx.doi.org/10.3397/in_2024_4296.

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Piezoelectric energy harvesters (PEH) are recognized as smart structural devices, offering researchers an innovative approach to estimate the energy harvested from real vibration sources. This work presents linear analytical methods for predicting the energy harvested from an unimorph cantilevered beam with a proof mass, with a substrate partially covered by a Macro Fiber Composite (MFC) patch. In order to enhance a PEH that can generate more density of electrical power, a new framework for MFC harvesters with discontinuous geometries using Euler-Bernoulli assumptions is proposed. The length o

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26

Khazaee, Majid, Alireza Rezaniakolaei, and Lasse Rosendahl. "An Experimental Study on Macro Piezoceramic Fiber Composites for Energy Harvesting." Materials Science Forum 951 (April 2019): 3–8. http://dx.doi.org/10.4028/www.scientific.net/msf.951.3.

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During the last decades, composite materials are being widely used in a variety of applications. Recently, a type of composite materials with piezoelectric fibers has been introduced for energy harvesting. This study presents an experimental study about composite materials with Piezoceramic fibers for energy harvesting. For this purpose, Macro Fiber Composite (MFC) layers were attached to the surface of metal substrates to form a unimorph harvester. In addition, to investigate the effect of substrate geometrical imperfection on output power, unimorph harvester with notched corners are studied.

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27

Micu, Lavinia Madalina, Iosif Lazar, Adrian Circiumaru, Ilare Bordeasu, Liviu Daniel Pirvulescu, and mihai Hluscu. "New Results Regarding Cavitation Behavior of Polymers Modified with Anorganic Substances Coated on Bronze Surfaces." Materiale Plastice 55, no. 3 (2018): 460–63. http://dx.doi.org/10.37358/mp.18.3.5051.

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Due to mechanical resistance characteristics, chemical corrosion and abrasive erosion resistance, the polymers are more widely used in equipments and installations that are exploited in different fluid hydrodynamic conditions. Among these applications there is the protection of surfaces of hydromechanic organs stressed by cavitation, like in hydraulic machines rotors and valves. Consequently, the research aimes the extension of using these and protection of other components surfacess hardly streesed by cavitation. The research in this paper points toward the behavior of modified polymer layer,

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28

Machů, Zdeněk, Oldřich Ševeček, Zdeněk Hadaš, and Michal Kotoul. "Modeling of electromechanical response and fracture resistance of multilayer piezoelectric energy harvester with residual stresses." Journal of Intelligent Material Systems and Structures 31, no. 19 (2020): 2261–87. http://dx.doi.org/10.1177/1045389x20942832.

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The article focuses on a modeling and subsequent optimization of a novel layered architecture of the vibration piezoceramic energy harvester composed of ZrO2/Al2O3/BaTiO3 layers and containing thermal residual stresses. The developed analytical/numerical model allows to determine the complete electromechanical response and the apparent fracture toughness of the multilayer vibration energy harvester, upon consideration of thermal residual stresses and time-harmonic kinematic excitation. The derived model uses the Euler–Bernoulli beam theory, Hamilton’s variational principle, and a classical lam

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29

Yumaryanto, Abdul A., Jae Bum An, and Li Li Xin. "A Piezoelectrically Actuated Biomimetic Walking Robot." Key Engineering Materials 326-328 (December 2006): 1435–38. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.1435.

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In this paper we present the design and prototype of a six-legged walking robot which uses Lightweight Piezoceramic Composite curved Actuator (LIPCA) as its actuator. LIPCA consists of multiple layers of glass/epoxy and carbon/epoxy that encapsulate a unimorph piezoelectric ceramic actuator. It uses lightweight fiber-reinforced plastic layers, and it is a lighter structure and generates a higher force and a larger displacement than other conventional piezo-composite type actuators. Like most six-legged walking insects including cockroaches, our robot uses the alternating tripod gait where the

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30

Nasedkin, A. V., A. A. Nasedkina, and M. E. Nassar. "FINITE ELEMENT CALCULATION OF DISK TRANSDUCER WITH CYMBAL-SHAPED END-CAPS AND ACTIVE ELEMENT FROM POROUS PIEZOCERAMICS WITH EXTREME CONDUCTIVITY OF PORE SURFACES." Problems of Strength and Plasticity 85, no. 1 (2023): 63–76. http://dx.doi.org/10.32326/1814-9146-2023-85-1-63-76.

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The paper presents a finite element analysis of a disk-shaped piezoelectric transducer with end-cap patches, which is usually called as Cymbal transducer. The efficiency of such a transducer is determined both by its geometric dimensions and by the values of the longitudinal and transverse piezoelectric moduli (piezoelectric charge coefficients) of the piezoceramic disc material. As was recently found, for porous piezoceramics with completely metallized pore surfaces, the effective transverse piezoelectric modulus does not decrease in absolute value with increasing porosity, as in conventional

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31

YAMASHITA, Yuji, Fumihiro ASHIDA, and Seiichiro SAKATA. "K-0613 Control of Transient Thermoelastic Displacement in a Two-Layer Composite Disk Consisting of Transversely Isotropic and Piezoceramic Layers." Proceedings of the JSME annual meeting I.01.1 (2001): 221–22. http://dx.doi.org/10.1299/jsmemecjo.i.01.1.0_221.

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Petrakov, E. V., H. Lotfi Pour, and E. V. Drobny. "ACTIVE DAMPING OF TRANSVERSE VIBRATIONS OF CONSOLE BEAM BY PIEZOELECTRIC LAYER WITH DIFFERENT ELECTRODE SHAPES OF DAMAGED MEDIA." Problems of strenght and plasticity 81, no. 4 (2019): 429–42. http://dx.doi.org/10.32326/1814-9146-2019-81-4-429-442.

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The damping efficiency is considered for a console beam described by a linear viscosity Bernoulli-Euler model. The article presents the methods of damping transverse vibrations implemented by a dynamic damper from a piezoelectric layer distributed symmetrically along the axis of symmetry of the beam. Piezoelectric layers with a triangular and rectangular shape of electrode plates are considered, which affects the nature of mechanical stresses upon application of electrical voltage. The electrode plates are thin layers made of nickel or silver several microns thick and located normal to the pol

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Ha, Dong Ho, Jinkyo F. Choo, Chang Hyung Lee, Won Seo Jang, and Nam Seo Goo. "Dynamic Characteristics of a Multi-Functional Bridge Bearing with Built-In Piezocomposite Element." Applied Mechanics and Materials 432 (September 2013): 275–80. http://dx.doi.org/10.4028/www.scientific.net/amm.432.275.

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A multi-functional bridge bearing with built-in piezocomposite electricity generating element (PCGE) is being developed by our research team to respond to the growing demand of self-powered sensing devices for the monitoring of bridges by harvesting the energy produced by the traffic-induced vibrations. For the intended application, a multilayered piezoelectric PCGE structure composed of layers of piezoceramic, glass/epoxy, and carbon/epoxy, has been developed to improve the durability, output voltage and power of the piezoceramic. The output voltage of this PCGE can be used for real-time traf

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Soloviev, Arkady N., Le Van Duong, P. A. Oganesyan, and E. V. Kirillova. "Modeling Energy Harvesting Devices with Non-Uniformly Polarized Piezoceramic Materials." Applied Mechanics and Materials 889 (March 2019): 322–28. http://dx.doi.org/10.4028/www.scientific.net/amm.889.322.

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Non-uniformly polarized piezoceramic materials can be used in effective energy harvesting devices. Axisymmetric and plane models of electro elastic bodies were studied using applied theory and finite element method (FEM). Applied theory for devices made of parts with longitudinal and transverse polarization was developed. It was based on bending of electro elastic plates models. Numerical experiments for FEM models were performed in ACELAN package. Comparison of applied theory and FEM results showed satisfactory accuracy. First model consists of three parts: transversally polarized part and tw

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35

Peelamedu, S. M., C. B. Kosaraju, R. V. Dukkipati, and N. G. Naganathan. "Numerical approach for axisymmetric piezoceramic geometries towards fluid control applications." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 214, no. 2 (2000): 87–97. http://dx.doi.org/10.1243/0959651001540834.

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Piezoceramics have been increasingly popular and utilized for the purpose of micro-actuation. The choice of material internal poling directions for such geometries depends upon the type of actuation desired in each application. There are no generalized analysis procedures that have been developed to be able to predict the response of such actuator geometries. In this work, a finite element model has been developed to analyse axisymmetric piezoceramic actuators with arbitrary internal poling. The finite element methodology is verified by demonstrating favourable agreement between the numerical

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36

Yoon, Kwang Joon, J. D. Lee, K. B. Kim, Hoon Cheol Park, and Nam Seo Goo. "Design and Manufacturing of IDEAL with Stacked Ceramic Layers and Inter-Digitated Electrodes." Key Engineering Materials 306-308 (March 2006): 1175–80. http://dx.doi.org/10.4028/www.scientific.net/kem.306-308.1175.

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This paper is concerned with the development of stacked ceramic thin actuation layer IDEAL (Inter-Digitated Electrode Actuation Layer) using d33 actuation mechanism of piezoelectric ceramic. Most of the thin piezoelectric actuators are operated with d31 actuation mechanism. Many kinds of piezoelectric ceramic actuators are strived now to improve the actuation performance. One of efforts to improve performance of piezoceramic actuators is the research trying to develop an actuator using the piezoelectric coefficient d33. The piezoelectric coefficient d33 is almost twice larger than piezoelectri

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Lee, Young Sup, Dong Jin Yoon, Sang Il Lee, and Jaehwa Kwon. "An Active Piezo Array Sensor for Elastic Wave Detection." Key Engineering Materials 297-300 (November 2005): 2004–9. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.2004.

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This paper describes an array sensor of piezoceramic PZT discs with flexible covering layers, which is designed to detect surface elastic waves in structures, such as Rayleigh waves. The sensor is distinguished from conventional “passive” sensors for elastic waves detection because it possesses an ability to actuate an “active” pulse. This indicates that the function of active pulse generation ensures the diagnosis of the structures, where the sensor attached or embedded into, can be accomplished in a smart way including an easy inspection of faults. Actually the sensor has been inspired from

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Nouraei, Mostafa, Vahid Zamani, and Ömer Civalek. "Vibration of smart sandwich plate with an auxetic core and dual-FG nanocomposite layers integrated with piezoceramic actuators." Composite Structures 315 (July 2023): 117014. http://dx.doi.org/10.1016/j.compstruct.2023.117014.

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Nasedkin, Andrey, and Mohamed Elsayed Nassar. "Effective properties of a porous inhomogeneously polarized by direction piezoceramic material with full metalized pore boundaries: Finite element analysis." Journal of Advanced Dielectrics 10, no. 05 (2020): 2050018. http://dx.doi.org/10.1142/s2010135x20500186.

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This paper concerns the homogenization problems for porous piezocomposites with infinitely thin metalized pore surfaces. To determine the effective properties, we used the effective moduli method and the finite element approaches, realized in the ANSYS package. As a simple model of the representative volume, we applied a unit cell of porous piezoceramic material in the form of a cube with one spherical pore. We modeled metallization by introducing an additional layer of material with very large permittivity coefficients along the pore boundary. Then we simulated the nonuniform polarization fie

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CAMUS, Corentin, Kerem EGE, Pierre-Jean COTTINET, Lambert SAUNIER, and Claude RICHARD. "Electromechanical coupling optimization for a sandwich beam activation using piezoceramics." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 6 (2024): 5348–57. http://dx.doi.org/10.3397/in_2024_3578.

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Sandwich beams composed of two stiff carbon fiber skins and a viscoelastic core are often used to passively dissipate energy through the activation of shearing in a specific frequency range. Semi-active or active energy dissipation can be made possible on those structures adding piezoelectric patches, coupling mechanical vibration energy and electrical energy. J.L. Guyader et al. [jsv, 1978] theorized a frequency dependent equivalent dynamic model of a sandwich structure, recently extended to the homogenization of anisotropic multi-layers by F.Marchetti et al. [jsv, 2020]. This frequency-depen

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Renzi, E. "Hydroelectromechanical modelling of a piezoelectric wave energy converter." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2195 (2016): 20160715. http://dx.doi.org/10.1098/rspa.2016.0715.

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We investigate the hydroelectromechanical-coupled dynamics of a piezoelectric wave energy converter. The converter is made of a flexible bimorph plate, clamped at its ends and forced to motion by incident ocean surface waves. The piezoceramic layers are connected in series and transform the elastic motion of the plate into useful electricity by means of the piezoelectric effect. By using a distributed-parameter analytical approach, we couple the linear piezoelectric constitutive equations for the plate with the potential-flow equations for the surface water waves. The resulting system of gover

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Pereira, Tiago Leite, Aline Souza de Paula, Adriano Todorovic Fabro, and Marcelo Amorim Savi. "Random Effects in a Nonlinear Vibration-Based Piezoelectric Energy Harvesting System." International Journal of Bifurcation and Chaos 29, no. 04 (2019): 1950046. http://dx.doi.org/10.1142/s0218127419500469.

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Vibration-based energy harvesting is of increasing importance and there is a current challenge to improve energy harvesting capacity exploiting nonlinear and random effects. This article investigates random effects in a nonlinear energy harvesting system. The system is represented by a magnetoelastic structure with two piezoceramic layers attached to the root of a cantilever beam, obtaining a bimorph generator. The energy harvesting system is subjected to three excitation conditions: pure harmonic, pure random and a combination of harmonic and random excitations. Noise-to-Signal Ratio (NSR) is

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Burdin, Dmitri, Dmitri Chashin, Leonid Fetisov, et al. "Towards Fabrication of Planar Magnetoelectric Devices: Coil-Free Excitation of Ferromagnet-Piezoelectric Heterostructures." Actuators 10, no. 11 (2021): 294. http://dx.doi.org/10.3390/act10110294.

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Magnetoelectric (ME) effects in composite ferromagnet-piezoelectric (FM/PE) heterostructures realize the mutual transformation of alternating magnetic and electric fields, and are used to create magnetic field sensors, actuators, inductors, gyrators, and transformers. The ME effect in composite structures is excited by an alternating magnetic field, which is created using volumetric electromagnetic coils. The coil increases the size, limits the operating frequencies, and complicates the manufacture of devices. In this work, we propose to excite the ME effect in composite heterostructures using

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Lee, Chang-Yull, Jin-Young Jung, and Se-Min Jeong. "Active Vibration Suppression of Stiffened Composite Panels with Piezoelectric Materials under Blast Loads." Applied Sciences 10, no. 1 (2020): 387. http://dx.doi.org/10.3390/app10010387.

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Transient responses of stiffened panels with piezoelectric sensors and actuators are studied under normal blast loads. The air vehicles could be exposed to blast pulses generated by an explosion or shock-wave disturbances. Thus, active vibration suppression of the vehicles is important under blast loadings. The structural model is designed as a laminated composite panel with lead zirconate titanate (PZT) piezoceramic layers embedded on both top and bottom surfaces. A uniformly distributed blast load is assumed over the whole of the panel surface. The first-order shear deformation theory of pla

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Abramovich, Haim, Eugeny Tsikchotsky, and Gregory Klein. "An experimental investigation on PZT behavior under mechanical and cycling loading." Journal of the Mechanical Behavior of Materials 22, no. 3-4 (2013): 129–36. http://dx.doi.org/10.1515/jmbm-2013-0018.

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AbstractThe drive to produce electrical energy by directly compressing piezoceramic material using mechanical stress stands behind the present test series. To be able to correctly choose the right material, PZT disks manufactured by three different manufacturers have been tested under static mechanical compressive and cyclic loads. It was shown that although the disks can withstand high mechanical stresses (up to 100 MPa) without any visible damage, their transduction is confined to much lower stresses (50–75 MPa), a range in which the electrical output is a function of the square of the appli

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Rongong, J. A., J. R. Wright, R. J. Wynne, and G. R. Tomlinson. "Modelling of a Hybrid Constrained Layer/Piezoceramic Approach to Active Damping." Journal of Vibration and Acoustics 119, no. 1 (1997): 120–30. http://dx.doi.org/10.1115/1.2889679.

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It has been shown that significant reductions in structural vibration levels can be achieved using a hybrid system involving constrained layer damping and active control with piezoceramics. In this paper, mathematical models based on the Rayleigh Ritz approach, are developed to describe the longitudinal and flexural vibration behaviour of a cantilevered beam when excited using piezoceramic patches bonded to a constrained layer damping treatment. Predictions of static and steady state dynamic behaviour, obtained using the models are validated by comparison with results from finite element analy

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Loza, I. A. "About the propagation of axisymmetric elastoelectric waves in a hollow layered cylinder from metal and piezoceramic layers at electric modes of excitation." Reports of the National Academy of Sciences of Ukraine, no. 8 (August 20, 2015): 51–57. http://dx.doi.org/10.15407/dopovidi2015.08.051.

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Teplykh, Andrey, Boris Zaitsev, Alexander Semyonov, and Irina Borodina. "The Study of the Acoustic Characteristics of Chitosan Acetate Film Using a Radial Electric Field Excited Resonator." Sensors 23, no. 4 (2023): 1808. http://dx.doi.org/10.3390/s23041808.

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Currently, the lateral electric field excited resonators are used for the creation of various sensors. We have recently proposed a new type of acoustic resonator called radial electric field excited disk acoustic resonator. The advantage of this type of resonator is its high sensitivity to mechanical and electrical boundary conditions on its free surface. This makes it possible to determine both the acoustic and electrical properties of a thin layer of material deposited on the free end of the resonator. In this work, we used a radial electric field excited disk acoustic resonator of Russian-m

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MASLOV, A. A., S. G. MIRONOV, A. N. KUDRYAVTSEV, T. V. POPLAVSKAYA, and I. S. TSYRYULNIKOV. "Wave processes in a viscous shock layer and control of fluctuations." Journal of Fluid Mechanics 650 (March 18, 2010): 81–118. http://dx.doi.org/10.1017/s0022112009993533.

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Generation and development of disturbances in a hypersonic viscous shock layer on a flat plate is studied both experimentally and numerically. The study is performed at the Mach number M∞ = 21 and the Reynolds number ReL = 1.44 × 105 and is aimed at elucidating the physical mechanisms that govern the receptivity and instability of the shock layer at extremely high hypersonic velocities. The experiments are conducted in a hypersonic nitrogen-driven wind tunnel. An electron-beam fluorescence technique, a Pitot probe and a piezoceramic transducer are used to measure the mean density and Mach numb

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Leyko, O. H., and M. H. Pleskach. "Sound emission by a cylindrical piezoceramic a transducer placed in a layer of sound-transparent material." Electronics and Communications 15, no. 4 (2010): 175–79. https://doi.org/10.20535/2312-1807.2010.15.4.301695.

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Based on a computational model in a form of an equivalent electromechanical circuit of a piezoceramic cylindrical transducer, placed in a layer of a sound transparent material, analytical expressions are obtained, describing the transducer’s sound field in its whole domain of existence. A calculating experiment is performed, allowing to analyze the mechanical impedance’s dependence on the frequency and the matching layer’s thickness. Some conclusions about the matching layer’s influence on the transducer’s sound field are made

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