IN THIS PROJECT OUR CENTRAL OBJECTIVE IS TO DEVELOP NEXT-GENERATION ACOUSTIC LINERS TO HELP QUIETEN AIRCRAF…
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ASST_NON_80NSSC19M0153_080 · WICHITA STATE UNIVERSITY · National Aeronautics and Space Administration
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- Assistance award identifier
- ASST_NON_80NSSC19M0153_080
- FAIN
- 80NSSC19M0153
- Recipient
- WICHITA STATE UNIVERSITY
- Awarding agency
- National Aeronautics and Space Administration
- Funding agency
- National Aeronautics and Space Administration
- Assistance listing (CFDA)
- 43.008
- Total obligated
- $722,085
- Period
- Jun 1, 2019 – May 31, 2022
- Fiscal year
- 2019
- Place of performance state
- KS
- Source file
- FY2019_All_Assistance_Full_20261006.zip
Description
IN THIS PROJECT OUR CENTRAL OBJECTIVE IS TO DEVELOP NEXT-GENERATION ACOUSTIC LINERS TO HELP QUIETEN AIRCRAFT ENGINES. TO THIS END WE WILL DEVELOP LIGHTWEIGHT MINIMAL THICKNESS LINERS USING ADVANCED CELLULAR POROUS MATERIALS ENGINEERED TO PROVIDE HIGH SOUND ABSORPTION OVER A WIDE FREQUENCY RANGE AND CAPABLE OF WITHSTANDING EXTREME ENGINE ENVIRONMENTS. CELLULAR MATERIALS OFFER A DISTINCT ADVANTAGE OVER TRADITIONAL LINER MATERIALS: THEIR STRUCTURAL AND FUNCTIONAL PROPERTIES ARE DIRECTLY CONTROLLED BY THEIR LOCAL MICROSTRUCTURAL ARCHITECTURE. THUS BY ENGINEERING THEIR MICROSTRUCTURE THEY CAN BE TAILORED TO PROVIDE SIGNIFICANTLY ENHANCED PROPERTIES WITHOUT PARASITIC MASS ADDITION. HERE OUR FOCUS WILL BE ON THREE CELLULAR MATERIAL SYSTEMS: (A) OPEN-CELLED METAL FOAMS; (B) 3D PRINTED POLYMERIC BULK ABSORBERS; AND (C) AEROGEL-BASED STRUCTURES. THE KEY RESEARCH OBJECTIVES ARE: (1) DESIGN FABRICATE AND TEST OPENCELLED FOAM-METAL LINERS WITH VARIABLE THROUGH-THICKNESS PROPERTIES; (2) LEVERAGE 3D PRINTING TECHNIQUES TO DESIGN NEW BULK ABSORBERS WITH NOVEL LOCAL TOPOLOGICAL SURFACES; AND (3) DESIGN AND FABRICATE ULTRA-LIGHTWEIGHT AEROGEL-BASED BULK ABSORBERS FOR AIRCRAFT LINER APPLICATIONS. THESE OBJECTIVES WILL BE ACHIEVED BY COMBINING EXPERIMENTAL AND QUANTITATIVE TECHNIQUES TO UNDERSTAND THE ROLE PLAYED BY THE ABSORBER S CELLULAR TOPOLOGY ON ITS ACOUSTIC PROPERTIES. THE INSIGHTS GAINED WILL BE USED TO DESIGN MINIMAL THICKNESS ACOUSTIC LINERS WITH EXCEPTIONAL NOISE ATTENUATION CAPABILITIES.