NDLI: Otve combustor wall condition monitoring

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Otve combustor wall condition monitoring

Content Provider	NASA Technical Reports Server (NTRS)
Author	Nelson, Robert S. Szemenyei, Brian Barkhoudarian, S.
Copyright Year	1989
Description	Conventional ultrasonics, eddy current, and electromagnetic acoustic transduction (EMAT) technologies were evaluated to determine their capability of measuring wall thickness/wear of individual cooling channels in test specimens simulating conditions in the throat region of an OTVE combustion chamber liner. Quantitative results are presented for the eddy current technology, which was shown to measure up to the optimum 20-mil wall thickness with near single channel resolution. Additional results demonstrate the capability of the conventional ultrasonics and EMAT technologies to detect a thinning or cracked wall. Recommendations for additional eddy current and EMAT development tests are presented.
File Size	1405298
Page Count	37
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890017528
Archival Resource Key	ark:/13960/t0xq1wt3r
Language	English
Publisher Date	1989-08-01
Access Restriction	Open
Subject Keyword	Spacecraft Propulsion And Power Thickness Nondestructive Tests Electromagnetism Wear Acoustics Combustion Chambers Ultrasonic Flaw Detection Eddy Currents Walls Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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