3D Printed multilayer overlapping resonators for low-frequency broadband sound absorption: mechanism analysis and corresponding modified theoretical method
Broadband low-frequency sound absorption is highly sought in engineering applications, but the size of sound-absorbing metamaterials still poses challenges. By revisiting the Helmholtz resonator, we propose a multi-layer overlapping structure. This structure adopts a simple design of nested multiple...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-12-01
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| Series: | Virtual and Physical Prototyping |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/17452759.2025.2455540 |
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| author | Yiming Zhao Zichao Guo Jie Ye Junjie Deng Xinying Lu Kexin Zeng Zhonggang Wang Zhendong Li |
| author_facet | Yiming Zhao Zichao Guo Jie Ye Junjie Deng Xinying Lu Kexin Zeng Zhonggang Wang Zhendong Li |
| author_sort | Yiming Zhao |
| collection | DOAJ |
| description | Broadband low-frequency sound absorption is highly sought in engineering applications, but the size of sound-absorbing metamaterials still poses challenges. By revisiting the Helmholtz resonator, we propose a multi-layer overlapping structure. This structure adopts a simple design of nested multiple Helmholtz resonators, creating a composite effect of coupling a three-dimensional buckling acoustic cavity with discontinuous cross-sectional effects, significantly improving the effective depth of the external cavity within a finite dimension. To reveal its complex characteristics, a high-fidelity correction method was proposed to calculate the increase in the effective depth of the cavity structure. Experimental validation has been conducted to evaluate the accuracy of the current model. This structure significantly increases the effective depth by about 38% with a total thickness of 63 mm, achieving broadband absorption from 320 to 690 Hz using non-parallel units. This work provides new and unique insights for designing acoustic metamaterials. |
| format | Article |
| id | doaj-art-8e28e204f15243dea9cb72de52ed5ebb |
| institution | DOAJ |
| issn | 1745-2759 1745-2767 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Virtual and Physical Prototyping |
| spelling | doaj-art-8e28e204f15243dea9cb72de52ed5ebb2025-08-20T03:12:11ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672025-12-0120110.1080/17452759.2025.24555403D Printed multilayer overlapping resonators for low-frequency broadband sound absorption: mechanism analysis and corresponding modified theoretical methodYiming Zhao0Zichao Guo1Jie Ye2Junjie Deng3Xinying Lu4Kexin Zeng5Zhonggang Wang6Zhendong Li7School of Traffic & Transportation Engineering, Central South University, Changsha, People’s Republic of ChinaSchool of Traffic & Transportation Engineering, Central South University, Changsha, People’s Republic of ChinaSchool of Traffic & Transportation Engineering, Central South University, Changsha, People’s Republic of ChinaSchool of Traffic & Transportation Engineering, Central South University, Changsha, People’s Republic of ChinaSchool of Traffic & Transportation Engineering, Central South University, Changsha, People’s Republic of ChinaSchool of Traffic & Transportation Engineering, Central South University, Changsha, People’s Republic of ChinaSchool of Traffic & Transportation Engineering, Central South University, Changsha, People’s Republic of ChinaDepartment of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, People’s Republic of ChinaBroadband low-frequency sound absorption is highly sought in engineering applications, but the size of sound-absorbing metamaterials still poses challenges. By revisiting the Helmholtz resonator, we propose a multi-layer overlapping structure. This structure adopts a simple design of nested multiple Helmholtz resonators, creating a composite effect of coupling a three-dimensional buckling acoustic cavity with discontinuous cross-sectional effects, significantly improving the effective depth of the external cavity within a finite dimension. To reveal its complex characteristics, a high-fidelity correction method was proposed to calculate the increase in the effective depth of the cavity structure. Experimental validation has been conducted to evaluate the accuracy of the current model. This structure significantly increases the effective depth by about 38% with a total thickness of 63 mm, achieving broadband absorption from 320 to 690 Hz using non-parallel units. This work provides new and unique insights for designing acoustic metamaterials.https://www.tandfonline.com/doi/10.1080/17452759.2025.2455540Multi-layer overlapping structurebroadband sound absorptionlow-frequency sound absorptionHelmholtz resonatorsthe effective depth |
| spellingShingle | Yiming Zhao Zichao Guo Jie Ye Junjie Deng Xinying Lu Kexin Zeng Zhonggang Wang Zhendong Li 3D Printed multilayer overlapping resonators for low-frequency broadband sound absorption: mechanism analysis and corresponding modified theoretical method Virtual and Physical Prototyping Multi-layer overlapping structure broadband sound absorption low-frequency sound absorption Helmholtz resonators the effective depth |
| title | 3D Printed multilayer overlapping resonators for low-frequency broadband sound absorption: mechanism analysis and corresponding modified theoretical method |
| title_full | 3D Printed multilayer overlapping resonators for low-frequency broadband sound absorption: mechanism analysis and corresponding modified theoretical method |
| title_fullStr | 3D Printed multilayer overlapping resonators for low-frequency broadband sound absorption: mechanism analysis and corresponding modified theoretical method |
| title_full_unstemmed | 3D Printed multilayer overlapping resonators for low-frequency broadband sound absorption: mechanism analysis and corresponding modified theoretical method |
| title_short | 3D Printed multilayer overlapping resonators for low-frequency broadband sound absorption: mechanism analysis and corresponding modified theoretical method |
| title_sort | 3d printed multilayer overlapping resonators for low frequency broadband sound absorption mechanism analysis and corresponding modified theoretical method |
| topic | Multi-layer overlapping structure broadband sound absorption low-frequency sound absorption Helmholtz resonators the effective depth |
| url | https://www.tandfonline.com/doi/10.1080/17452759.2025.2455540 |
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