Analysis of spatial vibrations of piezoceramic eccentric cylindrical shells interacting with an annular fluid layer
The work is devoted to a numerical study of the behavior of vertically oriented eccentric (non-coaxial) electroelastic shells, containing a fluid in the gap between them. The solution of the problem is found in the framework of a three-dimensional formulation using the finite element method. The she...
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Gruppo Italiano Frattura
2019-05-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2452 |
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| author | Sergei Lekomtsev Sergey Bochkarev Alexander Senin |
| author_facet | Sergei Lekomtsev Sergey Bochkarev Alexander Senin |
| author_sort | Sergei Lekomtsev |
| collection | DOAJ |
| description | The work is devoted to a numerical study of the behavior of vertically oriented eccentric (non-coaxial) electroelastic shells, containing a fluid in the gap between them. The solution of the problem is found in the framework of a three-dimensional formulation using the finite element method. The shells are made of the piezoelectric material polarized in the radial direction. Thin-walled structures are considered in the framework of the classical theory based on the Kirchhoff – Love hypotheses, as well as the equations of linear electroelasticity. The distribution of the electric potential through the thickness is assumed linear. The fluid is considered within the framework of a potential theory. The study of the low natural frequencies and vibration modes is carried out for different variants of the boundary conditions at the edges of the shells, the level of fluid in the gap and the eccentricity of the inner shell. The influence of the electric boundary conditions specified on the parts of the shells surfaces covered with electrodes is estimated. |
| format | Article |
| id | doaj-art-bb3d14b7b42447c29cfc1d28acadf3fe |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2019-05-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-bb3d14b7b42447c29cfc1d28acadf3fe2025-01-03T00:39:47ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932019-05-011349Analysis of spatial vibrations of piezoceramic eccentric cylindrical shells interacting with an annular fluid layerSergei Lekomtsev0Sergey Bochkarev1Alexander Senin2Institute of Continuous Media Mechanics, Ural Branch Russian Academy of SciencesInstitute of Continuous Media Mechanics, Ural Branch Russian Academy of SciencesInstitute of Continuous Media Mechanics, Ural Branch Russian Academy of SciencesThe work is devoted to a numerical study of the behavior of vertically oriented eccentric (non-coaxial) electroelastic shells, containing a fluid in the gap between them. The solution of the problem is found in the framework of a three-dimensional formulation using the finite element method. The shells are made of the piezoelectric material polarized in the radial direction. Thin-walled structures are considered in the framework of the classical theory based on the Kirchhoff – Love hypotheses, as well as the equations of linear electroelasticity. The distribution of the electric potential through the thickness is assumed linear. The fluid is considered within the framework of a potential theory. The study of the low natural frequencies and vibration modes is carried out for different variants of the boundary conditions at the edges of the shells, the level of fluid in the gap and the eccentricity of the inner shell. The influence of the electric boundary conditions specified on the parts of the shells surfaces covered with electrodes is estimated.https://www.fracturae.com/index.php/fis/article/view/2452PiezoceramicsPotential fluidPartial fillingEccentric cylindrical shellsFinite element methodNatural vibrations |
| spellingShingle | Sergei Lekomtsev Sergey Bochkarev Alexander Senin Analysis of spatial vibrations of piezoceramic eccentric cylindrical shells interacting with an annular fluid layer Fracture and Structural Integrity Piezoceramics Potential fluid Partial filling Eccentric cylindrical shells Finite element method Natural vibrations |
| title | Analysis of spatial vibrations of piezoceramic eccentric cylindrical shells interacting with an annular fluid layer |
| title_full | Analysis of spatial vibrations of piezoceramic eccentric cylindrical shells interacting with an annular fluid layer |
| title_fullStr | Analysis of spatial vibrations of piezoceramic eccentric cylindrical shells interacting with an annular fluid layer |
| title_full_unstemmed | Analysis of spatial vibrations of piezoceramic eccentric cylindrical shells interacting with an annular fluid layer |
| title_short | Analysis of spatial vibrations of piezoceramic eccentric cylindrical shells interacting with an annular fluid layer |
| title_sort | analysis of spatial vibrations of piezoceramic eccentric cylindrical shells interacting with an annular fluid layer |
| topic | Piezoceramics Potential fluid Partial filling Eccentric cylindrical shells Finite element method Natural vibrations |
| url | https://www.fracturae.com/index.php/fis/article/view/2452 |
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