Estimation of multiple faults in aircraft gas-turbine engines

Authors:
Soumik Sarkar;Chinmay Rao;Asok Ray
Affiliations:
Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA;Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA;Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA
Venue:
ACC'09 Proceedings of the 2009 conference on American Control Conference
Year:
2009

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Abstract

This paper presents estimation of multiple faults in aircraft gas-turbine engines, based on a statistical pattern recognition tool called Symbolic Dynamic Filtering (SDF). The underlying concept is built upon statistical analysis of evidences to estimate anomalies in multiple critical parameters of the engine system; it also presents a framework for sensor information fusion. The fault estimation algorithm is validated by numerical simulation on the NASA C-MAPSS test-bed of commercial aircraft engines.