Evaluating the Performance of Novel TPMS-Based Acoustic Liner Designs Suitable for Additive Manufacturing

Details

• Creators:
  Packer, Alden ; Reimann, C. Aaron ; Winkler, Julian ; Homma, Kenji ; Mendoza, Jeffrey ; Greenwood, Eric ; Manahan, Michael ; Meisel, Nicholas
• Corporate Creators:
  United States. Department of Transportation. Federal Aviation Administration. Center of Excellence for Alternative Jet Fuels and Environment ; Pennsylvania State University
• Corporate Contributors:
  United States. Department of Transportation. Federal Aviation Administration. Office of Environment and Energy
• Subject/TRT Terms:
  • Acoustics
  • Three dimensional printing
  • Noise control
  • Aviation
  • Manufacturing
  • ASCENT
  • Additive manufacturing
• Publication/ Report Number:
  Packer_SFF_2025
• Resource Type:
  Proceedings
• Right Statement:
  Open Access; https://creativecommons.org/licenses/by/4.0/
• Geographical Coverage:
  United States
• Corporate Publisher:
  The Minerals, Metals & Materials Society (TMS)
• Abstract:
  Acoustic liners are integral to the noise management of aircraft engines. As such, acoustic liner designs and configurations are the subject of research and development to address the acoustic requirements of novel engine layouts. Perforate sheet over honeycomb core, or single degree of freedom (SDOF), liners are the traditional system that has been used in the past, while more advanced double degree of freedom (DDOF) liners are the state-of-the-art liners currently implemented in aircraft engines. Leveraging the design freedom of additive manufacturing, our current research explores the use of TPMS lattice structures as an advanced core structure for acoustic liners. In this study, previously developed design exploration methods have been implemented to compare the performance of novel TPMS acoustic liners with the SDOF and DDOF liners. Performance comparisons between the acoustic liner types demonstrate the viability of the TPMS lattice liner as a viable alternative to standard designs, meriting further refinement and exploration.
• Format:
  PDF
• Funding:
  13-C-AJFE-PSU-113
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/89716/dot_89716_DS1.pdf
• File Type:
  [PDF - 1.44 MB]
• Collection(s):
  Federal Aviation Administration
• Main Document Checksum:
  urn:sha-512:651906de495bc103bd9ee082f674578301b98635e0c4da20caa478a52fd3f4a8d6c6b9345408e59349c4dd6b0f007881e65cd562d93de6cd5735b0968c09f515