Comparison of phononic structures with piezoelectric 0.62Pb(Mg1/3Nb1/3)O3-0.38PbTiO3 defect layers

doi:10.21495/91-8-229

Cited by 5 publications

(5 citation statements)

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“…using TMM can be determine the reflection and transmission coefficients of multilayer structures, which was proposed in their work by Dazel et al [23]. for the analysis of three multilayer structures with a defect in the form of a piezoelectric layer, the TMM algorithm was used by Garus et al [24]. Propagation of elastic waves in disordered multilayer structures made of two different materials was studied by Sigalas and Soukoulis [25] using TMM.…”

Section: Transfer Matrix Methodsmentioning

confidence: 99%

Archives of Metallurgy and Materials

Garus,

Sochacki

2020

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The effecT of Layer Thickness on The refLecTance of a Quasi one-DimensionaL composiTe BuiLT wiTh Zr 55 cu 30 ni 5 al 10 amorphous aLLoy anD epoxy resinThe study examined the impact of the angle of incidence of mechanical waves on various types of quasi one-dimensional superlattice. Binary periodic structure, quasi-periodic distribution of Thue-Morse layers and Severin's aperiodic multilayer were used. using the concatenation and recursive rules, the distribution of layers was determined for individual structure types for generation numbers equal to 3, 4 and 5. The structures were selected so that the thickness of the composite was the same for each type of distribution for a given generation number value. Transfer Matrix Method algorithm was used to determine reflectance. The band structure of reflectance has been demonstrated for incidence angles up to 90 degrees at mechanical wave frequencies up to 50 khz. The existence of wide bands of high reflectance above the acoustic frequencies was demonstrated for the analyzed structures. increasing the layer thickness caused an inhomogeneous shifts of transmission peaks towards lower frequencies.

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Section: Transfer Matrix Methodsmentioning

confidence: 99%

Archives of Metallurgy and Materials

Garus,

Sochacki

2020

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“…By altering the shape and layout of these scatterers, they aim to achieve specific properties within the PhnBG, including its width or blocking of a particular frequency band. For instance, research has examined the influence of scatterer orientation on tuning acoustic bands in two-dimensional phononic crystals [7], used numerical methods to explore tunable acoustic bandgaps [8], and even developed analytical models for tuning rods within phononic crystals to attenuate waves at particular frequencies [9]. The concept of active phononic crystals (APC) has also been a subject of interest, as highlighted in studies [10,11].…”

Section: Introductionmentioning

confidence: 99%

Influence of Meta-Atom Geometry on the Occurrence of Local Resonance Regions in Two-Dimensional Finite Phononic Structures

Garus,

Sochacki,

Garus

et al. 2023

Acta Phys. Pol. A

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In this work, the influence of different cross-sections of meta-atoms and their distribution on the occurrence of local resonance regions in inter-meta-atomic spaces of finite phononic structures was investigated. Software based on the Mathematica package was designed and implemented using the finite difference algorithm in the time domain to simulate mechanical wave propagation in phononic structures. Then, for the recorded time series from the inter-meta-atomic spaces, resonant frequency distributions were determined using Fourier transforms, and an analysis of the differences in frequency distributions depending on the location of the inter-meta-atomic space was carried out. topics: finite-difference time domain (FDTD), discrete Fourier transform (DFT), local resonant regions, phononic structures

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“…It is in such structures that the so-called band gaps are created, i.e., frequency bands for which waves do not pass through a given structure. Among the many literature items describing this issue in various contexts, one can mention works such as [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Transmission of a Phononic Superlattice Made of Dynamic Materials

Garus,

Sochacki,

Garus

et al. 2023

Acta Phys. Pol. A

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In one-dimensional phononic crystals, as a result of multiple destructive interferences of a mechanical wave, the phononic band gap phenomenon occurs, i.e., the lack of propagation of a wave of a given frequency through the structure due to internal reflections at the layer boundary and destructive interference. In dynamic phononic crystals, the incident monochromatic mechanical wave at the boundary of the media does not propagate according to Fresnel's relations, but is transformed into a wave spectrum, which affects the phononic properties of the examined structures and allows them to be dynamically controlled. The paper analyzes the transmission and influence of the frequency of changes in the properties of the elements of the finite phononic structure described by sinusoidal functions on the propagation of mechanical waves. topics: bandgap, finite-difference time-domain (FDTD), discrete Fourier transform (DFT), superlattice

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Comparison of phononic structures with piezoelectric 0.62Pb(Mg_1/3Nb_1/3)O₃-0.38PbTiO₃ defect layers

Cited by 5 publications

References 1 publication

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

Influence of Meta-Atom Geometry on the Occurrence of Local Resonance Regions in Two-Dimensional Finite Phononic Structures

Transmission of a Phononic Superlattice Made of Dynamic Materials

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