Enhanced fano-type broadband acoustic ventilated silencer with arbitrary geometrical configurations
The introduction of Fano resonance into acoustic metamaterials provides the possibility for simultaneous airborne sound insulation and high-efficiency ventilation, while the ultranarrow Fano line shape and limited shape configurations restrict the expansion to practical applications. In this work, w...
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Frontiers Media S.A.
2025-05-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2025.1586858/full |
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| author | Zi-xiang Xu Yu Fang Xiao-ping Wang |
| author_facet | Zi-xiang Xu Yu Fang Xiao-ping Wang |
| author_sort | Zi-xiang Xu |
| collection | DOAJ |
| description | The introduction of Fano resonance into acoustic metamaterials provides the possibility for simultaneous airborne sound insulation and high-efficiency ventilation, while the ultranarrow Fano line shape and limited shape configurations restrict the expansion to practical applications. In this work, we theoretically propose and demonstrate a broadband low-frequency ventilation acoustic chiral barrier with arbitrary geometrical configurations, where consecutive multiple Fano resonances (CMFRs) generate destructive interference in the range of 479–1,032 Hz. The barrier unit with a binary planar design is composed of the chiral space-coiling tunnel and hollow pipe, providing the discrete resonant and continuum states for Fano resonant system. By means of judiciously tuning the coupling of the above-mentioned two states, multi-order Fano resonances manifest as low transmission in a wide frequency range. Good agreement between simulated, theoretical, and measured results validates the effectiveness of the proposed barrier in the broad low-frequency range, in which the laminar and turbulent flow models reveal the high air-permeability of our barrier. Thanks to the unit planar profile, we can flexibly customize the arbitrary geometrical configurations of the barrier to extend into three-dimensional (3D) space for practical noise reduction applications. Our research makes it possible to construct ventilation artificial metastructure with a flexible manner for broadband sound attenuation. |
| format | Article |
| id | doaj-art-f4d5f6a8da59471b8f4b4eacc788bb4f |
| institution | DOAJ |
| issn | 2296-424X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Physics |
| spelling | doaj-art-f4d5f6a8da59471b8f4b4eacc788bb4f2025-08-20T03:13:01ZengFrontiers Media S.A.Frontiers in Physics2296-424X2025-05-011310.3389/fphy.2025.15868581586858Enhanced fano-type broadband acoustic ventilated silencer with arbitrary geometrical configurationsZi-xiang Xu0Yu Fang1Xiao-ping Wang2Nanjing Research Institute of Electronics Technology, Nanjing, ChinaNanjing Research Institute of Electronics Technology, Nanjing, ChinaThe Unit 93209 of People’s Liberation Army, Beijing, ChinaThe introduction of Fano resonance into acoustic metamaterials provides the possibility for simultaneous airborne sound insulation and high-efficiency ventilation, while the ultranarrow Fano line shape and limited shape configurations restrict the expansion to practical applications. In this work, we theoretically propose and demonstrate a broadband low-frequency ventilation acoustic chiral barrier with arbitrary geometrical configurations, where consecutive multiple Fano resonances (CMFRs) generate destructive interference in the range of 479–1,032 Hz. The barrier unit with a binary planar design is composed of the chiral space-coiling tunnel and hollow pipe, providing the discrete resonant and continuum states for Fano resonant system. By means of judiciously tuning the coupling of the above-mentioned two states, multi-order Fano resonances manifest as low transmission in a wide frequency range. Good agreement between simulated, theoretical, and measured results validates the effectiveness of the proposed barrier in the broad low-frequency range, in which the laminar and turbulent flow models reveal the high air-permeability of our barrier. Thanks to the unit planar profile, we can flexibly customize the arbitrary geometrical configurations of the barrier to extend into three-dimensional (3D) space for practical noise reduction applications. Our research makes it possible to construct ventilation artificial metastructure with a flexible manner for broadband sound attenuation.https://www.frontiersin.org/articles/10.3389/fphy.2025.1586858/fullacousticmetamateialssilencerfano resonancebroadband insulating |
| spellingShingle | Zi-xiang Xu Yu Fang Xiao-ping Wang Enhanced fano-type broadband acoustic ventilated silencer with arbitrary geometrical configurations Frontiers in Physics acoustic metamateials silencer fano resonance broadband insulating |
| title | Enhanced fano-type broadband acoustic ventilated silencer with arbitrary geometrical configurations |
| title_full | Enhanced fano-type broadband acoustic ventilated silencer with arbitrary geometrical configurations |
| title_fullStr | Enhanced fano-type broadband acoustic ventilated silencer with arbitrary geometrical configurations |
| title_full_unstemmed | Enhanced fano-type broadband acoustic ventilated silencer with arbitrary geometrical configurations |
| title_short | Enhanced fano-type broadband acoustic ventilated silencer with arbitrary geometrical configurations |
| title_sort | enhanced fano type broadband acoustic ventilated silencer with arbitrary geometrical configurations |
| topic | acoustic metamateials silencer fano resonance broadband insulating |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2025.1586858/full |
| work_keys_str_mv | AT zixiangxu enhancedfanotypebroadbandacousticventilatedsilencerwitharbitrarygeometricalconfigurations AT yufang enhancedfanotypebroadbandacousticventilatedsilencerwitharbitrarygeometricalconfigurations AT xiaopingwang enhancedfanotypebroadbandacousticventilatedsilencerwitharbitrarygeometricalconfigurations |