Título: | ANALYTICAL MODELING OF AN ACOUSTIC-ELECTRIC TRANSMISSION CHANNEL IN CYLINDRICAL COORDINATES WITH A TRANSVERSELY POLARIZED TRANSDUCER | ||||||||||||
Autor: |
JUAN ANDRES SANTISTEBAN HIDALGO |
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Colaborador(es): |
ARTHUR MARTINS BARBOSA BRAGA - Orientador ALAN CONCI KUBRUSLY - Coorientador |
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Catalogação: | 12/MAR/2024 | Língua(s): | ENGLISH - UNITED STATES |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=66203&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=66203&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.66203 | ||||||||||||
Resumo: | |||||||||||||
Cylindrical wave propagation in elastic materials has usually been modeled with analytical approaches or with numerical methods, such as the finite element method. However, depending on the frequency, obtaining results
can be a hard task, requiring high computational efforts. Within this context, some studies on acoustic energy transfer, using piezoelectric transducers,
had adopted alternative methods for modeling wave propagation, by means of
acoustic-electric channels. Among the available methods in the literature, the
two-port network approach, derived from the electric circuit analysis, proved
to be prominent. In this thesis, by using impedance analogies, this method
is brought into the context of acoustic wave propagation, leading to transfer
matrices based on transmission parameters, or the so-called ABCD parameters. It was verified that the same results with less computational effort were
obtained. So far, this method was only developed for the plane wave propagation in elastic solids and piezoelectric materials. However, since many real
applications are curved, the two-port network approach is extended for the
cylindrical wave case in this work. The novel ABCD parameters are then implemented in a computational routine, modeling pulse-echo and pitch-catch
tests inside cylindrical media. The validation was performed by means of a
convergence analysis, varying the internal radius of the entire channel, since
the new ABCD parameters showed an inverse proportionality with the radius
of the layer. Furthermore, the developed method was capable of modeling a
signal transmission experimental setup, coming from a cylindrical transducer
submerged in a water tank, as well as modeling the transmission of the same
signal through a cylindrical barrier.
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