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Overview of NASA Glenn Seal ProgramThe Seal Team is divided into four primary areas. These areas include turbine engine seal development, structural seal development, acoustic seal development, and adaptive seal development. The turbine seal area focuses on high temperature, high speed shaft seals for secondary air system flow management. The structural seal area focuses on high temperature, resilient structural seals required to accommodate large structural distortions for both space- and aero-applications. Our goal in the acoustic seal project is to develop non-contacting, low leakage seals exploiting the principles of advanced acoustics. We are currently investigating a new acoustic field known as Resonant Macrosonic Synthesis (RMS) to see if we can harness the large acoustic standing pressure waves to form an effective air-barrier/seal. Our goal in the adaptive seal project is to develop advanced sealing approaches for minimizing blade-tip (shroud) or interstage seal leakage. We are planning on applying either rub-avoidance or regeneration clearance control concepts (including smart structures and materials) to promote higher turbine engine efficiency and longer service lives.
Document ID
20040000630
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Steinetz, Bruce M. (NASA Glenn Research Center Cleveland, OH, United States)
Proctor, Margaret P. (NASA Glenn Research Center Cleveland, OH, United States)
Dunlap, Patrick H., Jr. (NASA Glenn Research Center Cleveland, OH, United States)
Delgado, Irebert (Army Research Lab. Cleveland, OH, United States)
DeMange, Jeffrey J. (Ohio Aerospace Inst. Brook Park, OH, United States)
Daniels, Christopher C. (Ohio Aerospace Inst. Brook Park, OH, United States)
Lattime, Scott B. (Ohio Aerospace Inst. Brook Park, OH, United States)
Date Acquired
September 7, 2013
Publication Date
September 1, 2003
Publication Information
Publication: 2002 NASA Seal/Secondary Air System Workshop
Volume: 1
Subject Category
Research And Support Facilities (Air)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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