Guided wave Generation in Elastic Layered Substrates with Piezoelectric Coatings and Patches

Глушков, Е. В.; Glushkova, Natalia; Евдокимов, А. А.; Zhang, Ch.

doi:10.1016/j.phpro.2015.08.196

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…where 0  a is the pin force applied at the boundary points a x   of the contact area [5], [9], [11]. The pin force amplitudes are calculated by the integration of shear stresses appearing in the contact area.…”

Section: B Comparison Of the Numerical Results: Fe-model Integral Rmentioning

confidence: 99%

“…Application of condition monitoring helps to avoid losses caused by the breakdown of industrial machinery and to reduce maintenance costs. Nowadays, the use of travelling waves is one of the most widespread methods for detecting damages in engineering systems [3]- [5]. Among the large number of existing methods for elastic waves excitation, the method based on the use of piezoelectric elements remains the most frequently used one [4]- [10] because these transducers have compact size, high sensitivity over the wide frequency range and low production costs.…”

Section: Introductionmentioning

confidence: 99%

“…They prove that shear stresses occuring between a piezoelectric patch and a host structure concentrate at the edge of the contact area [9]. Thereby, the simplified so called pin-force model [5], [11] is widely used to excite different kinds of acoustic waves in elastic structures. In this model, the deformation is transferred from a piezoelectric patch to the host structure through the forces "pins" concentrated at the ends of the actuator.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling of Wave Propagation for Condition Monitoring: Effect of Particular Qualities of PZT Actuation

Kirillova¹,

Seemann²,

Shevtsova³

2018

IJEETC

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 In this article, a model simulating wave propagation in an infinite isotropic structure excited by a thin piezoelectric wafer is considered. Three different models are used to calculate wave fields occuring in the considered layer. The first finite element (FE) model simulates the excitation caused by a piezoelectric actuator bonded onto the host structure using an adhesive layer. The actuator is driven by the electric potential applied to its upper surface. The second semi-analytical model is based on the Fourier transform and on the Green's matrix representation for the calculation of the occuring displacement fields. The third model introduces the effect of the actuator as two pin forces applied to the ends of the actuator. The results demonstrate the advantages and disadvanatges of the presented approaches, as well as the effect of a bonding layer in a wide frequency range.

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Section: B Comparison Of the Numerical Results: Fe-model Integral Rmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling of Wave Propagation for Condition Monitoring: Effect of Particular Qualities of PZT Actuation

Kirillova¹,

Seemann²,

Shevtsova³

2018

IJEETC

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show abstract

“…Performances of those RF SAW devices are dominantly limited by their resonators. In order to meet the increasing demand for high-performance SAW devices, a new-type resonator with a more complicated structure and multilayer piezoelectric substrate has been continuously emerged [ 18 , 19 , 20 ]. Thus, SAW engineers are always seeking solutions to obtain more universal, fast and precise simulation tools used for characterizing the SAW resonator.…”

Section: Introductionmentioning

confidence: 99%

Periodic Analysis of Surface Acoustic Wave Resonator with Dimensionally Reduced PDE Model Using COMSOL Code

Zhang

Chen

et al. 2021

Micromachines

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Radio-frequency (RF) surface acoustic wave (SAW) resonators used as filters and duplexers are mass-produced and widely used in current mobile phones. With the numerous emergences of the diverse device structure, a universal method used for the accurate and fast simulation of the SAW resonator calls for urgent demand. However, there are too many instances where the behavior of the entire acoustic resonator cannot be characterized rapidly and efficiently due to limitations in the current computer memory and speed. This is especially true for SAW resonators configured with long arrays of inter-digital transducers (IDTs), and we have to resort to a periodic analysis. In this paper, the previously reported generalized partial differential equations (PDE) based on the two-dimensional finite element method (2D-FEM) model is extended to analysis for the periodic structure of the SAW resonator. We present model order reduction (MOR) techniques based on FEM and periodic boundary conditions to achieve a dimensionally reduced PDE model without decreasing the accuracy of computations. Examples of different SAW devices, including the regular SAW, IHP-SAW and TC-SAW resonators, are provided which shows the results of the periodic analysis compared with the experimental results of the actual resonators. The investigation results demonstrate the properties of the proposed methodology and prove its effectiveness and accuracy.

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Modeling of Contact Stresses for Condition Monitoring Using Finite-Element Method and Semi-analytical Approach

Kirillova

Seemann

Shevtsova

2018

Springer Proceedings in Physics

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Guided wave Generation in Elastic Layered Substrates with Piezoelectric Coatings and Patches

Cited by 4 publications

References 5 publications

Modeling of Wave Propagation for Condition Monitoring: Effect of Particular Qualities of PZT Actuation

Modeling of Wave Propagation for Condition Monitoring: Effect of Particular Qualities of PZT Actuation

Periodic Analysis of Surface Acoustic Wave Resonator with Dimensionally Reduced PDE Model Using COMSOL Code

Modeling of Contact Stresses for Condition Monitoring Using Finite-Element Method and Semi-analytical Approach

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