The Influence of Heat Treatment on the Phononic Multilayer Sensor

Garus, S.

doi:10.37358/rc.19.10.7620

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…Many studies have been carried out describing the usefulness of phononic crystals as acoustic barriers [1], waveguides [2,3], mechanical wave filters [4][5][6][7], acoustic diodes [8], or sensors [9]. One of the most interesting phenomena occurring during wave propagation in multilayer structures is the presence of a phononic band gap (PhnBG).…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Shape of Acoustic Impedance Change on the Propagation of a Mechanical Wave in Multilayer Phononic Structures

Garus

2023

Acta Phys. Pol. A

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Thanks to the use of modern intelligent materials, such as composites consisting of piezoceramic fibers embedded in epoxy resin and covered with alternating electrodes, electroactive polymers, dielectric elastomers, magnetostrictive composites with epoxy resin or ferromagnetic alloys with shape memory, it is possible to control the geometry or properties of materials using pressure, external magnetic or electric fields. The paper analyzes multilayer quasi-one-dimensional phononic structures in which the selected layer is made of a material with time-varying acoustic impedance. The influence of the shape of the material properties changes over time (square wave, triangle wave, sawtooth wave) on the propagation of mechanical waves in the structure is analyzed.

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Section: Introductionmentioning

confidence: 99%

The Influence of the Shape of Acoustic Impedance Change on the Propagation of a Mechanical Wave in Multilayer Phononic Structures

Garus

2023

Acta Phys. Pol. A

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Using Optimization Algorithms to Design Phononic Barriers Protecting Monuments or Building Facades

GARUS,

CEKUS,

BLOCH

2024

Int J Conserv Sci

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The work compares the design of phononic structures using two types of optimization algorithms. Using the genetic algorithm and the simulated annealing algorithm, optimal layer distributions were obtained in which the phononic band gap phenomenon occurs. The mechanical wave propagating in the obtained structure, for the given frequency ranges, significantly reduces the transmitted energy, thanks to which the building facade or monument located behind the obtained barrier is exposed to much smaller vibrations, which significantly reduces damage related to long-term fatigue load. The mechanical wave propagation was modeled using the Transfer Matrix Method algorithm and the proprietary objective function allows for the reduction of wave transmission with the simultaneous reduction of high transmission peaks with small half-widths.

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The Influence of Heat Treatment on the Phononic Multilayer Sensor

Cited by 2 publications

References 23 publications

The Influence of the Shape of Acoustic Impedance Change on the Propagation of a Mechanical Wave in Multilayer Phononic Structures

The Influence of the Shape of Acoustic Impedance Change on the Propagation of a Mechanical Wave in Multilayer Phononic Structures

Using Optimization Algorithms to Design Phononic Barriers Protecting Monuments or Building Facades

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