دورية أكاديمية
A parameter design method for multifrequency perfect sound-absorbing metasurface with critical coupled Helmholtz resonator
| العنوان: | A parameter design method for multifrequency perfect sound-absorbing metasurface with critical coupled Helmholtz resonator |
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| المؤلفون: | Sun Wei, Li Li, Chu Zhigang, Li Linyong, Fan Xiaopeng |
| المصدر: | Journal of Low Frequency Noise, Vibration and Active Control, Vol 40 (2021) |
| بيانات النشر: | SAGE Publishing, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Acoustics. Sound |
| مصطلحات موضوعية: | Control engineering systems. Automatic machinery (General), TJ212-225, Acoustics. Sound, QC221-246 |
| الوصف: | The low-frequency harmonic components of urban substation noise are easy to annoy the residents. Multi-frequency perfect sound-absorbing metasurface based on the Helmholtz resonator (HR) is an alternative solution to suppress the low-frequency harmonic noise. This paper proposes an efficient design method of structural parameter for the multi-frequency perfect sound-absorbing metasurface. Taking the perfect sound absorption at the target frequency as objective and the structural parameters of HR as optimization variables, the structural parameter optimization model of multi-frequency perfect sound-absorbing metasurface is established and solved by the sequential quadratic programming algorithm. The proposed design method effectively overcomes the deterioration of sound absorption performance caused by the combined design of multiple perfect sound absorption units. Utilizing the proposed method, we designed a multi-frequency perfect sound-absorbing metasurface to absorb the four harmonic components of an urban substation noise simultaneously. The finite element simulation results and the experimental results of the physical sample indicate that the designed multi-frequency perfect sound-absorbing metasurface can satisfy critical coupling to achieve perfect sound absorption at all target frequencies. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1461-3484 2048-4046 14613484 |
| Relation: | https://doaj.org/toc/1461-3484; https://doaj.org/toc/2048-4046 |
| DOI: | 10.1177/14613484211019610 |
| URL الوصول: | https://doaj.org/article/809b486451f94a7fb168ce43c55b97ed |
| رقم الأكسشن: | edsdoj.809b486451f94a7fb168ce43c55b97ed |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 14613484 20484046 |
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| DOI: | 10.1177/14613484211019610 |