A Parametric Study of the Acoustic Performance of Resonant Absorbers Made of Micro-perforated Membranes and Perforated Panels
Sound absorbing surfaces are being increasingly requested for the acoustical treatment of spaces, like offices and restaurants, where high aesthetic standards are requested. In these cases, perforated and micro-perforated panels may represent the ideal solution in terms of low maintenance, durabilit...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-02-01
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| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/10/5/1581 |
| _version_ | 1818594911588450304 |
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| author | Lili Pan Francesco Martellotta |
| author_facet | Lili Pan Francesco Martellotta |
| author_sort | Lili Pan |
| collection | DOAJ |
| description | Sound absorbing surfaces are being increasingly requested for the acoustical treatment of spaces, like offices and restaurants, where high aesthetic standards are requested. In these cases, perforated and micro-perforated panels may represent the ideal solution in terms of low maintenance, durability, and mechanical resistance. In addition, such a solution might be conveniently realized while using optically transparent panels, which might offer extra value, as they could ensure visual contact, while remaining neutral in terms of design. The paper first investigates the reliability of prediction models by comparison with measured data. Subsequently, while taking advantage of a parametric optimization algorithm, it is shown how to design an absorber covering three octave bands, from 500 Hz to 2 kHz, with an average sound absorption coefficient of about 0.8. |
| first_indexed | 2024-12-16T11:07:39Z |
| format | Article |
| id | doaj.art-9a058974f532430a987d2cfc2ff1d79a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-16T11:07:39Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-9a058974f532430a987d2cfc2ff1d79a2022-12-21T22:33:49ZengMDPI AGApplied Sciences2076-34172020-02-01105158110.3390/app10051581app10051581A Parametric Study of the Acoustic Performance of Resonant Absorbers Made of Micro-perforated Membranes and Perforated PanelsLili Pan0Francesco Martellotta1School of Architecture, South China University of Technology, Guangzhou 510640, ChinaDipartimento di Scienze dell’Ingegneria Civile e dell’Architettura, Politecnico di Bari, Via Orabona 4, 70125 Bari, ItalySound absorbing surfaces are being increasingly requested for the acoustical treatment of spaces, like offices and restaurants, where high aesthetic standards are requested. In these cases, perforated and micro-perforated panels may represent the ideal solution in terms of low maintenance, durability, and mechanical resistance. In addition, such a solution might be conveniently realized while using optically transparent panels, which might offer extra value, as they could ensure visual contact, while remaining neutral in terms of design. The paper first investigates the reliability of prediction models by comparison with measured data. Subsequently, while taking advantage of a parametric optimization algorithm, it is shown how to design an absorber covering three octave bands, from 500 Hz to 2 kHz, with an average sound absorption coefficient of about 0.8.https://www.mdpi.com/2076-3417/10/5/1581sound absorptionperforated panelsmicro-perforated panelsresonant absorbers |
| spellingShingle | Lili Pan Francesco Martellotta A Parametric Study of the Acoustic Performance of Resonant Absorbers Made of Micro-perforated Membranes and Perforated Panels Applied Sciences sound absorption perforated panels micro-perforated panels resonant absorbers |
| title | A Parametric Study of the Acoustic Performance of Resonant Absorbers Made of Micro-perforated Membranes and Perforated Panels |
| title_full | A Parametric Study of the Acoustic Performance of Resonant Absorbers Made of Micro-perforated Membranes and Perforated Panels |
| title_fullStr | A Parametric Study of the Acoustic Performance of Resonant Absorbers Made of Micro-perforated Membranes and Perforated Panels |
| title_full_unstemmed | A Parametric Study of the Acoustic Performance of Resonant Absorbers Made of Micro-perforated Membranes and Perforated Panels |
| title_short | A Parametric Study of the Acoustic Performance of Resonant Absorbers Made of Micro-perforated Membranes and Perforated Panels |
| title_sort | parametric study of the acoustic performance of resonant absorbers made of micro perforated membranes and perforated panels |
| topic | sound absorption perforated panels micro-perforated panels resonant absorbers |
| url | https://www.mdpi.com/2076-3417/10/5/1581 |
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