Wideband sound absorption of 3D printed multi-layer micro-perforated panels
Micro-perforated panel (MPP) absorbers have been applied widely in noise reduction and sound damping. In order to obtain wideband sound absorption, novel structures of MPPs with various numbers of panel layers and spacing distances between them were designed. The structures were manufactured by s...
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sg-ntu-dr.10356-885012020-09-24T20:11:43Z Wideband sound absorption of 3D printed multi-layer micro-perforated panels Yang, Wenjing Yuan, Shangqin Zhou, Kun Chua, Chee Kai School of Mechanical and Aerospace Engineering Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018) Singapore Centre for 3D Printing 3D Printing Additive Manufacturing DRNTU::Engineering::Mechanical engineering::Prototyping Micro-perforated panel (MPP) absorbers have been applied widely in noise reduction and sound damping. In order to obtain wideband sound absorption, novel structures of MPPs with various numbers of panel layers and spacing distances between them were designed. The structures were manufactured by selective laser sintering, which is an advanced 3D printing technique producing complex structures effectively. The sound absorption coefficients of MPPs were measured by the impedance tube method. The results suggested that the multi-layer structures significantly increased the bandwidths of the absorption compared to the single-layer MPPs. This research work demonstrates the large potential of artificial acoustic designs of MPP via 3D printing for wideband absorption through controlling the layer number and the spacing distance. Published version 2018-09-06T03:10:50Z 2019-12-06T17:04:38Z 2018-09-06T03:10:50Z 2019-12-06T17:04:38Z 2018 Conference Paper Yang, W., Yuan, S., Chua, C. K., & Zhou, K. (2018). Wideband sound absorption of 3D printed multi-layer micro-perforated panels. Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018), 370-375. doi:10.25341/D4C307 https://hdl.handle.net/10356/88501 http://hdl.handle.net/10220/45851 10.25341/D4C307 en © 2018 Nanyang Technological University. Published by Nanyang Technological University, Singapore. 6 p. application/pdf |
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3D Printing Additive Manufacturing DRNTU::Engineering::Mechanical engineering::Prototyping Yang, Wenjing Yuan, Shangqin Zhou, Kun Chua, Chee Kai Wideband sound absorption of 3D printed multi-layer micro-perforated panels |
description |
Micro-perforated panel (MPP) absorbers have been applied widely in noise
reduction and sound damping. In order to obtain wideband sound absorption, novel structures of
MPPs with various numbers of panel layers and spacing distances between them were designed.
The structures were manufactured by selective laser sintering, which is an advanced 3D printing
technique producing complex structures effectively. The sound absorption coefficients of MPPs
were measured by the impedance tube method. The results suggested that the multi-layer
structures significantly increased the bandwidths of the absorption compared to the single-layer
MPPs. This research work demonstrates the large potential of artificial acoustic designs of MPP
via 3D printing for wideband absorption through controlling the layer number and the spacing
distance. |
author2 |
School of Mechanical and Aerospace Engineering |
author_facet |
School of Mechanical and Aerospace Engineering Yang, Wenjing Yuan, Shangqin Zhou, Kun Chua, Chee Kai |
format |
Conference or Workshop Item |
author |
Yang, Wenjing Yuan, Shangqin Zhou, Kun Chua, Chee Kai |
author_sort |
Yang, Wenjing |
title |
Wideband sound absorption of 3D printed multi-layer micro-perforated panels |
title_short |
Wideband sound absorption of 3D printed multi-layer micro-perforated panels |
title_full |
Wideband sound absorption of 3D printed multi-layer micro-perforated panels |
title_fullStr |
Wideband sound absorption of 3D printed multi-layer micro-perforated panels |
title_full_unstemmed |
Wideband sound absorption of 3D printed multi-layer micro-perforated panels |
title_sort |
wideband sound absorption of 3d printed multi-layer micro-perforated panels |
publishDate |
2018 |
url |
https://hdl.handle.net/10356/88501 http://hdl.handle.net/10220/45851 |
_version_ |
1681057181195042816 |