Design of Honeycomb Microperforated Structure with Adjustable Sound Absorption Performance
In this work, a double-layer honeycomb microperforated structure with adjustable back-cavity’s height is designed based on cylinder honeycomb structure and microperforated panel (MPP). The sound absorption performance can be changed by adjusting the height of back-cavity. Thus, a better absorption p...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/6613701 |
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| _version_ | 1832548690931220480 |
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| author | Shanlin Yan Jinwu Wu Jie Chen Qibo Mao Xiang Zhang |
| author_facet | Shanlin Yan Jinwu Wu Jie Chen Qibo Mao Xiang Zhang |
| author_sort | Shanlin Yan |
| collection | DOAJ |
| description | In this work, a double-layer honeycomb microperforated structure with adjustable back-cavity’s height is designed based on cylinder honeycomb structure and microperforated panel (MPP). The sound absorption performance can be changed by adjusting the height of back-cavity. Thus, a better absorption performance is achieved by changing the position of the inner MPP. Acoustic impedance of the structure was calculated based on transfer matrix method. The sound absorption coefficient of the structure was obtained by finite element method (FEM). Meanwhile, the 3D printing technology was used to produce the experimental samples. The experimental results demonstrate that the sound absorption coefficient of the structure is greater than 0.8 in the range of 750–1250 Hz, greater than 0.9 in the range of 2297–3592 Hz, and above 0.5 in the range of 500–4000 Hz. In addition, the feasibility of achieving adjustable sound absorption by means of changing the height of the back-cavity is verified by theoretical, simulation, and experimental results. The structure proposed in this work can realize the function of wide-band and better sound absorption performance by changing the position of the inner MPP, which can be applied to effectively reduce different frequencies noise. |
| format | Article |
| id | doaj-art-97292b423ff84bfcbda4fccc967032f1 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-97292b423ff84bfcbda4fccc967032f12025-02-03T06:13:18ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/66137016613701Design of Honeycomb Microperforated Structure with Adjustable Sound Absorption PerformanceShanlin Yan0Jinwu Wu1Jie Chen2Qibo Mao3Xiang Zhang4School of Aircraft Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaSchool of Aircraft Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaSchool of Aircraft Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaSchool of Aircraft Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaSchool of Mechanical and Electrical Engineering, Harbin Institute of Technology, Harbin 150006, ChinaIn this work, a double-layer honeycomb microperforated structure with adjustable back-cavity’s height is designed based on cylinder honeycomb structure and microperforated panel (MPP). The sound absorption performance can be changed by adjusting the height of back-cavity. Thus, a better absorption performance is achieved by changing the position of the inner MPP. Acoustic impedance of the structure was calculated based on transfer matrix method. The sound absorption coefficient of the structure was obtained by finite element method (FEM). Meanwhile, the 3D printing technology was used to produce the experimental samples. The experimental results demonstrate that the sound absorption coefficient of the structure is greater than 0.8 in the range of 750–1250 Hz, greater than 0.9 in the range of 2297–3592 Hz, and above 0.5 in the range of 500–4000 Hz. In addition, the feasibility of achieving adjustable sound absorption by means of changing the height of the back-cavity is verified by theoretical, simulation, and experimental results. The structure proposed in this work can realize the function of wide-band and better sound absorption performance by changing the position of the inner MPP, which can be applied to effectively reduce different frequencies noise.http://dx.doi.org/10.1155/2021/6613701 |
| spellingShingle | Shanlin Yan Jinwu Wu Jie Chen Qibo Mao Xiang Zhang Design of Honeycomb Microperforated Structure with Adjustable Sound Absorption Performance Shock and Vibration |
| title | Design of Honeycomb Microperforated Structure with Adjustable Sound Absorption Performance |
| title_full | Design of Honeycomb Microperforated Structure with Adjustable Sound Absorption Performance |
| title_fullStr | Design of Honeycomb Microperforated Structure with Adjustable Sound Absorption Performance |
| title_full_unstemmed | Design of Honeycomb Microperforated Structure with Adjustable Sound Absorption Performance |
| title_short | Design of Honeycomb Microperforated Structure with Adjustable Sound Absorption Performance |
| title_sort | design of honeycomb microperforated structure with adjustable sound absorption performance |
| url | http://dx.doi.org/10.1155/2021/6613701 |
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