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https://hdl.handle.net/20.500.14094/90007372
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2024-04-19
01:38 集計
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90007372 (fulltext)
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2.36 MB
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メタデータID
90007372
アクセス権
open access
出版タイプ
Version of Record
タイトル
The Effect of Deviation Due to the Manufacturing Accuracy in the Parameters of an MPP on Its Acoustic Properties: Trial Production of MPPs of Different Hole Shapes Using 3D Printing
著者
Sakagami, Kimihiro ; Kusaka, Midori ; Okuzono, Takeshi ; Nakanishi, Shinsuke
著者ID
A0907
研究者ID
1000090231331
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=742d13b49a67e4a0520e17560c007669
著者名
Sakagami, Kimihiro
阪上, 公博
サカガミ, キミヒロ
所属機関名
工学研究科
著者名
Kusaka, Midori
著者ID
A0989
研究者ID
1000040727707
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=b74ca4a1d35d0354520e17560c007669
著者名
Okuzono, Takeshi
奥園, 健
オクゾノ, タケシ
所属機関名
工学研究科
著者名
Nakanishi, Shinsuke
収録物名
Acoustics
巻(号)
2(3)
ページ
605-616
出版者
MDPI
刊行日
2020-09
公開日
2020-08-18
抄録
In this study, we discuss the effect of the manufacturing accuracy of a microperforated panel (MPP) produced by 3D printers on acoustic properties through measured and calculated results as a pilot study. The manufacturing costs of MPPs have long been one of their shortcomings; however, with recent developments in the manufacturing process, low-cost MPPs are now available. In a further attempt at reducing the cost, 3D printing techniques have recently been considered. Cases of trial production of MPPs manufactured by 3D printing have been reported. When introducing such new techniques, despite the conventional microdrill procedure, manufacturing accuracy can often become an issue. However, there are few studies reporting the effect of manufacturing accuracy on the acoustic properties in the case of 3D-printed MPPs. Considering this situation, in this pilot study, we attempted to produce MPPs with circular and rectangular perforations using a consumer 3D printer of the additive manufacturing type. The hole sizes of the specimens were measured, and the accuracy was evaluated. The normal incidence absorption coefficient and specific impedance were measured using an impedance tube. The measured results were compared with the theoretical values using Guo's model. Through these basic studies, the MPPs produced by an additive manufacturing 3D printer demonstrated good sound absorption performance; however, due to the large deviations of parameters, the agreement with the theoretical values was not good, which suggests that it is difficult to predict the acoustic properties of MPPs made by a consumer-grade additive manufacturing 3D printer.
キーワード
microperforated panel
3D printer
additive manufacturing
sound absorption
manufacturing accuracy
theoretical prediction
カテゴリ
工学研究科
学術雑誌論文
権利
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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資源タイプ
journal article
言語
English (英語)
eISSN
2624-599X
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関連情報
DOI
https://doi.org/10.3390/acoustics2030032
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