A study on engine health monitoring in the frequency domain

Borguet, Sébastien; Henriksson, Mattias; Mc Kelvey, Tomas; Léonard, Olivier

doi:10.1115/GT2010-22635

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A study on engine health monitoring in the frequency domain

Borguet, Sébastien; Henriksson, Mattias; Mc Kelvey, Tomas et al.

2010 • In Proceedings of the ASME Turbo Expo 2010

Peer reviewed

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https://hdl.handle.net/2268/40611

DOI
10.1115/GT2010-22635

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Keywords :

gas path analysis; frequency domain; least-squares

Abstract :

[en] Most of the techniques developed to date for module performance analysis rely on steady-state measurements from a single operating point to evaluate the level of deterioration of an engine. One of the major difficulties associated with this estimation problem comes from its underdetermined nature. It results from the fact that the number of health parameters exceeds the number of available sensors. Among the panel of remedies to this issue, a few authors have investigated the potential of using data collected during a transient operation of the engine. A major outcome of these studies is an Improvement in the assessed health condition. The present contribution proposes a framework that formalises this observation for a given class of input signals. The analysis is performed in the frequency domain, following the lines of system identification theory. More specifically, the meansquared estimation error is shown to drastically decrease when using transient input signals. The study is conducted with an engine model representative of a commercial turbofan.

Disciplines :

Aerospace & aeronautics engineering
Mechanical engineering

Author, co-author :

Borguet, Sébastien ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Turbomachines et propulsion aérospatiale

Henriksson, Mattias; Volvo Aero Corporation AB > Performance and Control Systems

Mc Kelvey, Tomas; Chalmers University of Technology > Signals and Systems

Léonard, Olivier ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Turbomachines et propulsion aérospatiale

Language :

English

Title :

A study on engine health monitoring in the frequency domain

Publication date :

June 2010

Event name :

ASME Turbo Expo 2010: Power for Land, Sea and Air

Event place :

Glasgow, United Kingdom

Event date :

June 14-18, 2010

Audience :

International

Main work title :

Proceedings of the ASME Turbo Expo 2010

Peer reviewed :

Peer reviewed

Commentary :

ASME Paper GT2010-22635

Available on ORBi :

since 31 March 2010

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