NDLI: Remaining engine life estimation for a sensor-based aircraft engine

Content Provider	IEEE Xplore Digital Library
Author	Ten-Huei Guo Chen, P. Huang, Y.
Copyright Year	2005
Description	Author affiliation: NASA Glenn Res. Center, Cleveland, OH, USA (Ten-Huei Guo)
Abstract	It is generally known that an engine component will accumulate damage (life usage) during its lifetime of use in a harsh operating environment. The commonly used cycle count for engine component usage monitoring has an inherent range of uncertainty that can be overly costly or potentially less safe from an operational standpoint. This paper describes an approach to quantify the effects of engine operating parameter uncertainties on the thermomechanical fatigue (TMF) life of a selected engine part. A closed-loop engine simulation with a TMF life model is used to calculate the life consumption of different mission cycles. A Monte Carlo simulation approach is used to generate the statistical life usage profile for different operating assumptions. The probabilities of failure of different operating conditions are compared to illustrate the importance of the engine component life calculation using sensor information. The results of this study clearly show that a sensor-based life cycle calculation can greatly reduce the risk of component failure as well as extend on-wing component life by avoiding unnecessary maintenance actions.
Starting Page	387
Ending Page	392
File Size	233751
Page Count	6
File Format	PDF
ISBN	0780392981
DOI	10.1109/ICSMC.2005.1571177
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Engines Life estimation Aircraft propulsion Probability Fatigue Failure analysis Uncertain systems Thermomechanical processes Turbines Certification
Content Type	Text
Resource Type	Article

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