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Benchmarking Gas Path Diagnostic Methods: A Public ApproachRecent technology reviews have identified the need for objective assessments of engine health management (EHM) technology. The need is two-fold: technology developers require relevant data and problems to design and validate new algorithms and techniques while engine system integrators and operators need practical tools to direct development and then evaluate the effectiveness of proposed solutions. This paper presents a publicly available gas path diagnostic benchmark problem that has been developed by the Propulsion and Power Systems Panel of The Technical Cooperation Program (TTCP) to help address these needs. The problem is coded in MATLAB (The MathWorks, Inc.) and coupled with a non-linear turbofan engine simulation to produce "snap-shot" measurements, with relevant noise levels, as if collected from a fleet of engines over their lifetime of use. Each engine within the fleet will experience unique operating and deterioration profiles, and may encounter randomly occurring relevant gas path faults including sensor, actuator and component faults. The challenge to the EHM community is to develop gas path diagnostic algorithms to reliably perform fault detection and isolation. An example solution to the benchmark problem is provided along with associated evaluation metrics. A plan is presented to disseminate this benchmark problem to the engine health management technical community and invite technology solutions.
Document ID
20080032563
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Simon, Donald L. (Army Research Lab. Cleveland, OH, United States)
Bird, Jeff (National Research Council of Canada Ottawa, Ontario, Canada)
Davison, Craig (National Research Council of Canada Ottawa, Ontario, Canada)
Volponi, Al (Pratt and Whitney Aircraft East Hartford, CT, United States)
Iverson, R. Eugene (Boeing Co. Seattle, WA, United States)
Date Acquired
August 24, 2013
Publication Date
July 1, 2008
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
E-16542
NASA/TM-2008-215271
GT2008-51360
Meeting Information
Meeting: Turbo Expo 2008 Gas Turbine Technical Congress and Exposition
Location: Berlin
Country: Germany
Start Date: June 9, 2008
End Date: June 13, 2008
Sponsors: American Society of Mechanical Engineers
Funding Number(s)
WBS: WBS 645846.02.07.03.03.01
Distribution Limits
Public
Copyright
Public Use Permitted.

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