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Early Research on Additively Manufactured Sound Absorbers
Technical Paper
2019-01-1576
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Additive manufacturing is slowly changing how components are developed and manufactured. As the technology develops over time, it is anticipated that industry will 3D print sound absorbers in production. Configurations may be considered that would be difficult to manufacture in another way. For exploratory purposes, several designs were 3D printed and positioned in an impedance tube for testing. Though the absorbers developed are based on well-established strategies, the absorbers considered are either difficult to manufacture by another means or take advantage of the unique features of 3D printed parts. The samples measured include long perforations, lightweight panels, and Helmholtz resonators with spiral wound necks. Selected results are compared with acoustic finite element analysis.
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Citation
Liu, W. and Herrin, D., "Early Research on Additively Manufactured Sound Absorbers," SAE Technical Paper 2019-01-1576, 2019, https://doi.org/10.4271/2019-01-1576.Also In
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