Early Research on Additively Manufactured Sound Absorbers

Weiyun Liu, David Herrin

Research output: Contribution to journalConference articlepeer-review


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.

Original languageEnglish
JournalSAE Technical Papers
Issue numberJune
StatePublished - Jun 5 2019
Event2019 SAE Noise and Vibration Conference and Exhibition, NVC 2019 - Grand Rapids, United States
Duration: Jun 10 2019Jun 13 2019

Bibliographical note

Funding Information:
The authors gratefully acknowledge the support of the Vibro-Acoustics Consortium for this work.

Publisher Copyright:
© 2019 SAE International. All Rights Reserved.

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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