Innovative High Temperature Acoustic Liner Development and Modeling

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNK04OA31C
Agency Tracking Number: 030209
Amount: $100,000.00
Phase: Phase I
Program: STTR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: T6.02
Solicitation Number: N/A
Small Business Information
12173 Montague St, Pacoima, CA, 91331-2210
DUNS: 052405867
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Edwin Stankiewicz
 Principal Investigator
 () -
Business Contact
 Craig Ward
Title: Engineering Administrative Mgr
Phone: (818) 899-0236
Research Institution
 Pennsylvania State University
 Not Available
 Graduate Program in Acoustics, 217 Applied Science Building
University Park, PA, 16804
 (814) 865-6364
 Domestic nonprofit research organization
The massive acoustic loads produced by launch vehicles can detrimentally affect the proper functioning of vehicle components, payloads, and launch support structures. The high-velocity and high temperature rocket engine exhaust stream mixes with ambient atmosphere to generate intense acoustic loads, which account for the majority of structural vibration during launch. Ultramet has developed a unique, high temperature material that has demonstrated passive broadband sound attenuation over a range of frequencies and can withstand temperatures in excess of 1650 C (3000 F). In this project, Ultramet proposes to team with the Graduate Program in Acoustics at Pennsylvania State University (PSU) to develop and test a scale model to validate the impedance of this novel high temperature acoustic liner. An innovative, porous acoustic material will be developed that has demonstrated thermal, corrosion, acoustic, and mechanical load resistance at high temperatures, and porosity, pore size, pore shape, and material of construction will be varied to optimize mechanical and acoustic performance over a wide range of frequencies, amplitudes, and gas flow velocities and temperatures. Ultramet and PSU will also develop a basic numerical model to aid in the design of an economical and efficient liner exhaust duct system.

* information listed above is at the time of submission.

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