Investigation on Minute Holes of Woven Fabrics for Wide-Band Micro-Perforated Sound Absorbers
Woven fabric perforation is helpful to be adopted to meet the microstructure requirement of a micro-perforated panel (MPP) absorber. Unlike conventional MPP, the woven fabric micro-perforations are formed by yarn in the <i>x</i> (weft) and <i>y</i> (warp)-directions. Hence, m...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/13/3/663 |
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| author | Gunawan Iwan Prasetiyo Brian Yuliarto Azma Putra Irianto |
| author_facet | Gunawan Iwan Prasetiyo Brian Yuliarto Azma Putra Irianto |
| author_sort | Gunawan |
| collection | DOAJ |
| description | Woven fabric perforation is helpful to be adopted to meet the microstructure requirement of a micro-perforated panel (MPP) absorber. Unlike conventional MPP, the woven fabric micro-perforations are formed by yarn in the <i>x</i> (weft) and <i>y</i> (warp)-directions. Hence, minute holes of the MPP with a diameter of 0.1–0.3 mm or a high perforation ratio are expected to be easily fabricated, while such a specification is difficult to realize on a solid surface, as found in some studies. The study presented here focuses on the use of minute holes in MPP absorbers by woven fabrics and discusses the minute hole properties of woven fabrics and their associated absorption characteristics. Theoretical results by Maa’s model are also used to validate resulting characteristics found from the experimental investigations. It is found that minute holes with around 0.10–0.20 mm diameter have been successfully fabricated by controlling weft yarn density. The woven fabrics are capable of producing half-absorption bandwidth of up to 5000 Hz (>3 octaves), while the peak of the absorption coefficient can be more than 0.8. In addition, varying hole diameter with the order of 10<sup>−2</sup> mm can change the absorption behavior for both peak absorption and absorption bandwidth. Such behavior is confirmed by comparing the results with the theoretical model. This study also indicates that Maa’s model is still applicable for predicting absorption of MPP developed based on woven fabric material. |
| first_indexed | 2024-03-11T06:49:19Z |
| format | Article |
| id | doaj.art-1e1550e4394d47bebef2e8416108b32b |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T06:49:19Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-1e1550e4394d47bebef2e8416108b32b2023-11-17T10:02:25ZengMDPI AGBuildings2075-53092023-03-0113366310.3390/buildings13030663Investigation on Minute Holes of Woven Fabrics for Wide-Band Micro-Perforated Sound AbsorbersGunawan0Iwan Prasetiyo1Brian Yuliarto2Azma Putra3Irianto4Engineering Physics, Faculty of Industrial Technology, Institut Teknologi Bandung, Bandung 40132, IndonesiaEngineering Physics, Faculty of Industrial Technology, Institut Teknologi Bandung, Bandung 40132, IndonesiaEngineering Physics, Faculty of Industrial Technology, Institut Teknologi Bandung, Bandung 40132, IndonesiaFakulti Kejuruteraan Mekanikal, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, Durian Tunggal, Melaka 76100, MalaysiaFaculty of Resilience, Rabdan Academy, Abu Dhabi P.O. Box 40132, United Arab EmiratesWoven fabric perforation is helpful to be adopted to meet the microstructure requirement of a micro-perforated panel (MPP) absorber. Unlike conventional MPP, the woven fabric micro-perforations are formed by yarn in the <i>x</i> (weft) and <i>y</i> (warp)-directions. Hence, minute holes of the MPP with a diameter of 0.1–0.3 mm or a high perforation ratio are expected to be easily fabricated, while such a specification is difficult to realize on a solid surface, as found in some studies. The study presented here focuses on the use of minute holes in MPP absorbers by woven fabrics and discusses the minute hole properties of woven fabrics and their associated absorption characteristics. Theoretical results by Maa’s model are also used to validate resulting characteristics found from the experimental investigations. It is found that minute holes with around 0.10–0.20 mm diameter have been successfully fabricated by controlling weft yarn density. The woven fabrics are capable of producing half-absorption bandwidth of up to 5000 Hz (>3 octaves), while the peak of the absorption coefficient can be more than 0.8. In addition, varying hole diameter with the order of 10<sup>−2</sup> mm can change the absorption behavior for both peak absorption and absorption bandwidth. Such behavior is confirmed by comparing the results with the theoretical model. This study also indicates that Maa’s model is still applicable for predicting absorption of MPP developed based on woven fabric material.https://www.mdpi.com/2075-5309/13/3/663woven fabricmicro-perforation panel absorberminute holeswideband sound absorption |
| spellingShingle | Gunawan Iwan Prasetiyo Brian Yuliarto Azma Putra Irianto Investigation on Minute Holes of Woven Fabrics for Wide-Band Micro-Perforated Sound Absorbers Buildings woven fabric micro-perforation panel absorber minute holes wideband sound absorption |
| title | Investigation on Minute Holes of Woven Fabrics for Wide-Band Micro-Perforated Sound Absorbers |
| title_full | Investigation on Minute Holes of Woven Fabrics for Wide-Band Micro-Perforated Sound Absorbers |
| title_fullStr | Investigation on Minute Holes of Woven Fabrics for Wide-Band Micro-Perforated Sound Absorbers |
| title_full_unstemmed | Investigation on Minute Holes of Woven Fabrics for Wide-Band Micro-Perforated Sound Absorbers |
| title_short | Investigation on Minute Holes of Woven Fabrics for Wide-Band Micro-Perforated Sound Absorbers |
| title_sort | investigation on minute holes of woven fabrics for wide band micro perforated sound absorbers |
| topic | woven fabric micro-perforation panel absorber minute holes wideband sound absorption |
| url | https://www.mdpi.com/2075-5309/13/3/663 |
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