A Numerical and Experimental Study on an Interconnected Metamaterial for Flexural Vibration Control Based on Modal Strain Energy
In this study, an interconnected metamaterial was proposed to suppress flexural vibration. The interconnected metamaterial can improve the manufacturing and installation processes in terms of convenience because it can be fabricated in the form of a modular multi-celled structure with a single-phase...
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| Format: | Article |
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MDPI AG
2021-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/10/4530 |
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| author | Hyun-Guk Kim Onyu Jeon Semyung Wang |
| author_facet | Hyun-Guk Kim Onyu Jeon Semyung Wang |
| author_sort | Hyun-Guk Kim |
| collection | DOAJ |
| description | In this study, an interconnected metamaterial was proposed to suppress flexural vibration. The interconnected metamaterial can improve the manufacturing and installation processes in terms of convenience because it can be fabricated in the form of a modular multi-celled structure with a single-phase material. To evaluate the vibration reduction performance of the metamaterial, stopband analysis was performed, as it solves an iterative eigenvalue problem for the wave vector domain. In order to identify the Bloch mode that contributes to flexural vibration, a concept to extract the Bloch mode based on the modal strain energy was proposed. The vibration-reduction performance of the interconnected metamaterial was numerically verified by using a frequency-response analysis of the multi-celled structure. The interconnected metamaterial proposed in this study was fabricated by using a 3D printer. Finally, the vibration-reduction performance of the multi-celled structure was experimentally verified by using impact testing. |
| first_indexed | 2024-03-10T11:22:22Z |
| format | Article |
| id | doaj.art-ce0ffe06aab54916b1600da24e64c4cd |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T11:22:22Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ce0ffe06aab54916b1600da24e64c4cd2023-11-21T19:56:45ZengMDPI AGApplied Sciences2076-34172021-05-011110453010.3390/app11104530A Numerical and Experimental Study on an Interconnected Metamaterial for Flexural Vibration Control Based on Modal Strain EnergyHyun-Guk Kim0Onyu Jeon1Semyung Wang2School of Mechanical Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, KoreaSchool of Mechanical Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, KoreaSchool of Mechanical Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, KoreaIn this study, an interconnected metamaterial was proposed to suppress flexural vibration. The interconnected metamaterial can improve the manufacturing and installation processes in terms of convenience because it can be fabricated in the form of a modular multi-celled structure with a single-phase material. To evaluate the vibration reduction performance of the metamaterial, stopband analysis was performed, as it solves an iterative eigenvalue problem for the wave vector domain. In order to identify the Bloch mode that contributes to flexural vibration, a concept to extract the Bloch mode based on the modal strain energy was proposed. The vibration-reduction performance of the interconnected metamaterial was numerically verified by using a frequency-response analysis of the multi-celled structure. The interconnected metamaterial proposed in this study was fabricated by using a 3D printer. Finally, the vibration-reduction performance of the multi-celled structure was experimentally verified by using impact testing.https://www.mdpi.com/2076-3417/11/10/4530interconnected metamaterialstopband3D printingvibration reduction |
| spellingShingle | Hyun-Guk Kim Onyu Jeon Semyung Wang A Numerical and Experimental Study on an Interconnected Metamaterial for Flexural Vibration Control Based on Modal Strain Energy Applied Sciences interconnected metamaterial stopband 3D printing vibration reduction |
| title | A Numerical and Experimental Study on an Interconnected Metamaterial for Flexural Vibration Control Based on Modal Strain Energy |
| title_full | A Numerical and Experimental Study on an Interconnected Metamaterial for Flexural Vibration Control Based on Modal Strain Energy |
| title_fullStr | A Numerical and Experimental Study on an Interconnected Metamaterial for Flexural Vibration Control Based on Modal Strain Energy |
| title_full_unstemmed | A Numerical and Experimental Study on an Interconnected Metamaterial for Flexural Vibration Control Based on Modal Strain Energy |
| title_short | A Numerical and Experimental Study on an Interconnected Metamaterial for Flexural Vibration Control Based on Modal Strain Energy |
| title_sort | numerical and experimental study on an interconnected metamaterial for flexural vibration control based on modal strain energy |
| topic | interconnected metamaterial stopband 3D printing vibration reduction |
| url | https://www.mdpi.com/2076-3417/11/10/4530 |
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