An analytical study of sound transmission loss of functionally graded sandwich cylindrical nanoshell integrated with piezoelectric layers
Abstract The multidisciplinary nature of piezoelectric (PZ) structures necessitates precise and efficient methods to express their behavior under different conditions. This article extends the general usage of PZ materials by introducing acoustic and fluid loading effects in a way that an unfilled m...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-06905-1 |
| _version_ | 1818988086159212544 |
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| author | Chanachai Thongchom Pouyan Roodgar Saffari Nima Refahati Peyman Roudgar Saffari Hossein Pourbashash Sayan Sirimontree Suraparb Keawsawasvong |
| author_facet | Chanachai Thongchom Pouyan Roodgar Saffari Nima Refahati Peyman Roudgar Saffari Hossein Pourbashash Sayan Sirimontree Suraparb Keawsawasvong |
| author_sort | Chanachai Thongchom |
| collection | DOAJ |
| description | Abstract The multidisciplinary nature of piezoelectric (PZ) structures necessitates precise and efficient methods to express their behavior under different conditions. This article extends the general usage of PZ materials by introducing acoustic and fluid loading effects in a way that an unfilled multilayer cylindrical nanoshell with a functionally graded (FG) material core and PZ layers is subjected to preliminary external electric load, acoustic waves and external flow motion. As the properties of a functionally graded material changes along the shell thickness, a power law model is assumed to be governing such variations of desired characteristics. Evidently, this system includes different types of couplings and a comprehensive approach is required to describe the structural response. To this aim, the first-order shear deformation theory (FSDT) is used to define different displacement components. Next, the coupled size-dependent vibroacoustic equations are derived based on in conjunction with nonlocal strain gradient theory (NSGT) with the aid of Hamilton’s variational principle and fluid/structure compatibility conditions. NSGT is complemented with hardening and softening material effects which can greatly enhance the precision of results. It is expected to use the findings of this paper in the optimization of similar systems by selecting suitable FG index, incident angle of sound waves, flow Mach number, nonlocal and strain gradient parameters, starting electric potential and geometric features. One of the important findings of this study is that increasing the electric voltage can obtain better sound insulation at small frequencies, specially prior to the ring frequency. |
| first_indexed | 2024-12-20T19:16:59Z |
| format | Article |
| id | doaj.art-92098dfbbe1245aea9eaa83280d15057 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-20T19:16:59Z |
| publishDate | 2022-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-92098dfbbe1245aea9eaa83280d150572022-12-21T19:29:05ZengNature PortfolioScientific Reports2045-23222022-02-0112111610.1038/s41598-022-06905-1An analytical study of sound transmission loss of functionally graded sandwich cylindrical nanoshell integrated with piezoelectric layersChanachai Thongchom0Pouyan Roodgar Saffari1Nima Refahati2Peyman Roudgar Saffari3Hossein Pourbashash4Sayan Sirimontree5Suraparb Keawsawasvong6Department of Civil Engineering, Faculty of Engineering, Thammasat School of Engineering, Thammasat UniversityDepartment of Civil Engineering, Faculty of Engineering, Thammasat School of Engineering, Thammasat UniversityDepartment of Mechanical Engineering, Damavand Branch, Islamic Azad UniversityDepartment of Civil Engineering, Faculty of Engineering, Thammasat School of Engineering, Thammasat UniversityDepartment of Mathematics, University of GarmsarDepartment of Civil Engineering, Faculty of Engineering, Thammasat School of Engineering, Thammasat UniversityDepartment of Civil Engineering, Faculty of Engineering, Thammasat School of Engineering, Thammasat UniversityAbstract The multidisciplinary nature of piezoelectric (PZ) structures necessitates precise and efficient methods to express their behavior under different conditions. This article extends the general usage of PZ materials by introducing acoustic and fluid loading effects in a way that an unfilled multilayer cylindrical nanoshell with a functionally graded (FG) material core and PZ layers is subjected to preliminary external electric load, acoustic waves and external flow motion. As the properties of a functionally graded material changes along the shell thickness, a power law model is assumed to be governing such variations of desired characteristics. Evidently, this system includes different types of couplings and a comprehensive approach is required to describe the structural response. To this aim, the first-order shear deformation theory (FSDT) is used to define different displacement components. Next, the coupled size-dependent vibroacoustic equations are derived based on in conjunction with nonlocal strain gradient theory (NSGT) with the aid of Hamilton’s variational principle and fluid/structure compatibility conditions. NSGT is complemented with hardening and softening material effects which can greatly enhance the precision of results. It is expected to use the findings of this paper in the optimization of similar systems by selecting suitable FG index, incident angle of sound waves, flow Mach number, nonlocal and strain gradient parameters, starting electric potential and geometric features. One of the important findings of this study is that increasing the electric voltage can obtain better sound insulation at small frequencies, specially prior to the ring frequency.https://doi.org/10.1038/s41598-022-06905-1 |
| spellingShingle | Chanachai Thongchom Pouyan Roodgar Saffari Nima Refahati Peyman Roudgar Saffari Hossein Pourbashash Sayan Sirimontree Suraparb Keawsawasvong An analytical study of sound transmission loss of functionally graded sandwich cylindrical nanoshell integrated with piezoelectric layers Scientific Reports |
| title | An analytical study of sound transmission loss of functionally graded sandwich cylindrical nanoshell integrated with piezoelectric layers |
| title_full | An analytical study of sound transmission loss of functionally graded sandwich cylindrical nanoshell integrated with piezoelectric layers |
| title_fullStr | An analytical study of sound transmission loss of functionally graded sandwich cylindrical nanoshell integrated with piezoelectric layers |
| title_full_unstemmed | An analytical study of sound transmission loss of functionally graded sandwich cylindrical nanoshell integrated with piezoelectric layers |
| title_short | An analytical study of sound transmission loss of functionally graded sandwich cylindrical nanoshell integrated with piezoelectric layers |
| title_sort | analytical study of sound transmission loss of functionally graded sandwich cylindrical nanoshell integrated with piezoelectric layers |
| url | https://doi.org/10.1038/s41598-022-06905-1 |
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