Acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography

Polymeric cellular structures based on triply periodic minimal surfaces (TPMS) have been widely studied for applications in multiple disciplines due to their multifunctionality. However, there is limited acoustic application by TPMS-based structures as their acoustic properties remain largely unknow...

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Main Authors: Yang, Wenjing, An, Jia, Chua, Chee Kai, Zhou, Kun
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/143430
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1434302023-03-04T17:22:03Z Acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography Yang, Wenjing An, Jia Chua, Chee Kai Zhou, Kun School of Mechanical and Aerospace Engineering Singapore Centre for 3D Printing Engineering Polymeric cellular structures based on triply periodic minimal surfaces (TPMS) have been widely studied for applications in multiple disciplines due to their multifunctionality. However, there is limited acoustic application by TPMS-based structures as their acoustic properties remain largely unknown. In this paper, TPMS-based structures are fabricated by additive manufacturing and investigated as a novel solution to sound absorption in the upper midrange frequency. Structures based on three typical surface types (Primitive, Gyroid and Diamond) with three geometry-related parameters (volume fraction, unit cell size and height) are manufactured by stereolithography and tested by two-microphone impedance method in the frequency range of 2000-6000 Hz. The results show that the structures based on Diamond surfaces exhibit excellent absorption abilities among the three types in a wide bandwidth. High absorption coefficients can be achieved by a large volume fraction or a small unit cell size while the effective frequency ranges can be adjusted by the height. This study extends the multifunctionality of TPMS-based cellular structures to include acoustic absorption and will facilitate the development of guidelines on designing the optimal acoustic absorbers by cellular structures in future. National Research Foundation (NRF) Accepted version This research is supported by the National Research Foundation, Prime Minister’s Office, Singapore under its Medium-Sized Centre funding scheme. 2020-09-01T05:02:58Z 2020-09-01T05:02:58Z 2020 Journal Article Yang, W., An, J., Chua, C. K., & Zhou, K. (2020). Acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography. Virtual and Physical Prototyping, 15(2), 242-249. doi:10.1080/17452759.2020.1740747 1745-2759 https://hdl.handle.net/10356/143430 10.1080/17452759.2020.1740747 2-s2.0-85082319778 2 15 242 249 en Virtual and Physical Prototyping This is an Accepted Manuscript of an article published by Informa UK Limited, trading as Taylor and Francis in Virtual and Physical Prototyping on 19 Mar 2020, available online: http://www.tandfonline.com/10.1080/17452759.2020.1740747 application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
spellingShingle Engineering
Yang, Wenjing
An, Jia
Chua, Chee Kai
Zhou, Kun
Acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography
description Polymeric cellular structures based on triply periodic minimal surfaces (TPMS) have been widely studied for applications in multiple disciplines due to their multifunctionality. However, there is limited acoustic application by TPMS-based structures as their acoustic properties remain largely unknown. In this paper, TPMS-based structures are fabricated by additive manufacturing and investigated as a novel solution to sound absorption in the upper midrange frequency. Structures based on three typical surface types (Primitive, Gyroid and Diamond) with three geometry-related parameters (volume fraction, unit cell size and height) are manufactured by stereolithography and tested by two-microphone impedance method in the frequency range of 2000-6000 Hz. The results show that the structures based on Diamond surfaces exhibit excellent absorption abilities among the three types in a wide bandwidth. High absorption coefficients can be achieved by a large volume fraction or a small unit cell size while the effective frequency ranges can be adjusted by the height. This study extends the multifunctionality of TPMS-based cellular structures to include acoustic absorption and will facilitate the development of guidelines on designing the optimal acoustic absorbers by cellular structures in future.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Yang, Wenjing
An, Jia
Chua, Chee Kai
Zhou, Kun
format Article
author Yang, Wenjing
An, Jia
Chua, Chee Kai
Zhou, Kun
author_sort Yang, Wenjing
title Acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography
title_short Acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography
title_full Acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography
title_fullStr Acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography
title_full_unstemmed Acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography
title_sort acoustic absorptions of multifunctional polymeric cellular structures based on triply periodic minimal surfaces fabricated by stereolithography
publishDate 2020
url https://hdl.handle.net/10356/143430
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