Synergy enhancement in low-frequency sound absorption by a nanofibre coating for the microperforated panels
The sound absorption coefficient of polyvinylidene fluoride (PVDF) and carbon nanotube (CNT) composite nanofibre-coated micro-perforated plate (MPP) is investigated. The MPP material is steel and is laser-drilled. The nanofibres are fabricated by electrospinning and directly coated onto the steel MP...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127524008359 |
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| author | Jingze Liu R. Hugh Gong Enza Migliore |
| author_facet | Jingze Liu R. Hugh Gong Enza Migliore |
| author_sort | Jingze Liu |
| collection | DOAJ |
| description | The sound absorption coefficient of polyvinylidene fluoride (PVDF) and carbon nanotube (CNT) composite nanofibre-coated micro-perforated plate (MPP) is investigated. The MPP material is steel and is laser-drilled. The nanofibres are fabricated by electrospinning and directly coated onto the steel MPP collector. This makes it possible to attach extremely thin coatings of nanofibres. The sound absorption coefficient was measured using the impedance tube method. The results show that MPP absorbers with nanofibre coatings significantly widen the absorption bandwidth and increase the absorption coefficient. Because of the synergy enhancement effect, the performance of the absorber is much exceed the expect of the transfer matrix method (TMM) model. A very thin coating of nanofibres enables a significant increase in MPP performance. The effects of the nanofibre coatings were analyzed by finite element method (FEM) simulations. The coating enhances the end effect of MPP and extends along the MPP surface. In addition, different nanofibre coating thickness and impedance also have different effects on the sound absorption performance. This study provides a new method to enhance the performance of MPP with negligible increase in thickness and costs. |
| format | Article |
| id | doaj-art-922fe63ad0c84740954cfa99ddcf3fa2 |
| institution | DOAJ |
| issn | 0264-1275 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-922fe63ad0c84740954cfa99ddcf3fa22025-08-20T02:52:35ZengElsevierMaterials & Design0264-12752024-12-0124811346010.1016/j.matdes.2024.113460Synergy enhancement in low-frequency sound absorption by a nanofibre coating for the microperforated panelsJingze Liu0R. Hugh Gong1Enza Migliore2The School of Materials, The University of Manchester, Manchester M13 9PL, UK; School of Design, Southern University of Science and Technology, Shenzhen 518055, China; Corresponding author at: The School of Materials, The University of Manchester, Manchester M13 9PL, UK.The School of Materials, The University of Manchester, Manchester M13 9PL, UKSchool of Design, Southern University of Science and Technology, Shenzhen 518055, ChinaThe sound absorption coefficient of polyvinylidene fluoride (PVDF) and carbon nanotube (CNT) composite nanofibre-coated micro-perforated plate (MPP) is investigated. The MPP material is steel and is laser-drilled. The nanofibres are fabricated by electrospinning and directly coated onto the steel MPP collector. This makes it possible to attach extremely thin coatings of nanofibres. The sound absorption coefficient was measured using the impedance tube method. The results show that MPP absorbers with nanofibre coatings significantly widen the absorption bandwidth and increase the absorption coefficient. Because of the synergy enhancement effect, the performance of the absorber is much exceed the expect of the transfer matrix method (TMM) model. A very thin coating of nanofibres enables a significant increase in MPP performance. The effects of the nanofibre coatings were analyzed by finite element method (FEM) simulations. The coating enhances the end effect of MPP and extends along the MPP surface. In addition, different nanofibre coating thickness and impedance also have different effects on the sound absorption performance. This study provides a new method to enhance the performance of MPP with negligible increase in thickness and costs.http://www.sciencedirect.com/science/article/pii/S0264127524008359Sound absorptionNoise controlNanofibreMicroperforated panel (MPP)Finite element method (FEM) |
| spellingShingle | Jingze Liu R. Hugh Gong Enza Migliore Synergy enhancement in low-frequency sound absorption by a nanofibre coating for the microperforated panels Materials & Design Sound absorption Noise control Nanofibre Microperforated panel (MPP) Finite element method (FEM) |
| title | Synergy enhancement in low-frequency sound absorption by a nanofibre coating for the microperforated panels |
| title_full | Synergy enhancement in low-frequency sound absorption by a nanofibre coating for the microperforated panels |
| title_fullStr | Synergy enhancement in low-frequency sound absorption by a nanofibre coating for the microperforated panels |
| title_full_unstemmed | Synergy enhancement in low-frequency sound absorption by a nanofibre coating for the microperforated panels |
| title_short | Synergy enhancement in low-frequency sound absorption by a nanofibre coating for the microperforated panels |
| title_sort | synergy enhancement in low frequency sound absorption by a nanofibre coating for the microperforated panels |
| topic | Sound absorption Noise control Nanofibre Microperforated panel (MPP) Finite element method (FEM) |
| url | http://www.sciencedirect.com/science/article/pii/S0264127524008359 |
| work_keys_str_mv | AT jingzeliu synergyenhancementinlowfrequencysoundabsorptionbyananofibrecoatingforthemicroperforatedpanels AT rhughgong synergyenhancementinlowfrequencysoundabsorptionbyananofibrecoatingforthemicroperforatedpanels AT enzamigliore synergyenhancementinlowfrequencysoundabsorptionbyananofibrecoatingforthemicroperforatedpanels |