Elastic Waves Excitation and Focusing by a Piezoelectric Transducer with Intermediate Layered Elastic Metamaterials with and without Periodic Arrays of Interfacial Voids
Optimization of the structure of piezoelectric transducers such as the proper design of matching layers can increase maximum wave energy transmission to the host structure and transducer sensitivity. A novel configuration of an ultrasonic transducer, where elastic metamaterial insertion is introduce...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/23/24/9747 |
| _version_ | 1827573557163458560 |
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| author | Mikhail V. Golub Sergey I. Fomenko Pavel E. Usov Artem A. Eremin |
| author_facet | Mikhail V. Golub Sergey I. Fomenko Pavel E. Usov Artem A. Eremin |
| author_sort | Mikhail V. Golub |
| collection | DOAJ |
| description | Optimization of the structure of piezoelectric transducers such as the proper design of matching layers can increase maximum wave energy transmission to the host structure and transducer sensitivity. A novel configuration of an ultrasonic transducer, where elastic metamaterial insertion is introduced to provide bulk wave mode conversion and to increase wave energy transfer into a substrate, is proposed. Configurations of layered elastic metamaterials with crack-like voids are examined theoretically since they can provide wide band gaps and strong wave localization and trapping. The analysis shows that the proposed metamaterial-based matching layers can sufficiently change wave energy transmission from a piezoelectric active element for various frequency ranges (relatively low frequencies as well as higher ones). The proposed configuration can also be useful for advanced sensing with higher sensitivity in certain frequency ranges or for demultiplexing different kinds of elastic waves. |
| first_indexed | 2024-03-08T20:22:56Z |
| format | Article |
| id | doaj.art-493b7b02ea714ac7a29100560ddbc246 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-08T20:22:56Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-493b7b02ea714ac7a29100560ddbc2462023-12-22T14:40:30ZengMDPI AGSensors1424-82202023-12-012324974710.3390/s23249747Elastic Waves Excitation and Focusing by a Piezoelectric Transducer with Intermediate Layered Elastic Metamaterials with and without Periodic Arrays of Interfacial VoidsMikhail V. Golub0Sergey I. Fomenko1Pavel E. Usov2Artem A. Eremin3Institute for Mathematics, Mechanics and Informatics, Kuban State University, 350040 Krasnodar, RussiaInstitute for Mathematics, Mechanics and Informatics, Kuban State University, 350040 Krasnodar, RussiaInstitute for Mathematics, Mechanics and Informatics, Kuban State University, 350040 Krasnodar, RussiaInstitute for Mathematics, Mechanics and Informatics, Kuban State University, 350040 Krasnodar, RussiaOptimization of the structure of piezoelectric transducers such as the proper design of matching layers can increase maximum wave energy transmission to the host structure and transducer sensitivity. A novel configuration of an ultrasonic transducer, where elastic metamaterial insertion is introduced to provide bulk wave mode conversion and to increase wave energy transfer into a substrate, is proposed. Configurations of layered elastic metamaterials with crack-like voids are examined theoretically since they can provide wide band gaps and strong wave localization and trapping. The analysis shows that the proposed metamaterial-based matching layers can sufficiently change wave energy transmission from a piezoelectric active element for various frequency ranges (relatively low frequencies as well as higher ones). The proposed configuration can also be useful for advanced sensing with higher sensitivity in certain frequency ranges or for demultiplexing different kinds of elastic waves.https://www.mdpi.com/1424-8220/23/24/9747elastic metamaterialpiezoelectric transducerelastic wavesvoidsperiodic arraymode conversion |
| spellingShingle | Mikhail V. Golub Sergey I. Fomenko Pavel E. Usov Artem A. Eremin Elastic Waves Excitation and Focusing by a Piezoelectric Transducer with Intermediate Layered Elastic Metamaterials with and without Periodic Arrays of Interfacial Voids Sensors elastic metamaterial piezoelectric transducer elastic waves voids periodic array mode conversion |
| title | Elastic Waves Excitation and Focusing by a Piezoelectric Transducer with Intermediate Layered Elastic Metamaterials with and without Periodic Arrays of Interfacial Voids |
| title_full | Elastic Waves Excitation and Focusing by a Piezoelectric Transducer with Intermediate Layered Elastic Metamaterials with and without Periodic Arrays of Interfacial Voids |
| title_fullStr | Elastic Waves Excitation and Focusing by a Piezoelectric Transducer with Intermediate Layered Elastic Metamaterials with and without Periodic Arrays of Interfacial Voids |
| title_full_unstemmed | Elastic Waves Excitation and Focusing by a Piezoelectric Transducer with Intermediate Layered Elastic Metamaterials with and without Periodic Arrays of Interfacial Voids |
| title_short | Elastic Waves Excitation and Focusing by a Piezoelectric Transducer with Intermediate Layered Elastic Metamaterials with and without Periodic Arrays of Interfacial Voids |
| title_sort | elastic waves excitation and focusing by a piezoelectric transducer with intermediate layered elastic metamaterials with and without periodic arrays of interfacial voids |
| topic | elastic metamaterial piezoelectric transducer elastic waves voids periodic array mode conversion |
| url | https://www.mdpi.com/1424-8220/23/24/9747 |
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