Reference : A study on engine health monitoring in the frequency domain
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/40611
A study on engine health monitoring in the frequency domain
English
Borguet, Sébastien mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Turbomachines et propulsion aérospatiale >]
Henriksson, Mattias mailto [Volvo Aero Corporation AB > Performance and Control Systems > > >]
Mc Kelvey, Tomas mailto [Chalmers University of Technology > Signals and Systems > > >]
Léonard, Olivier mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Turbomachines et propulsion aérospatiale >]
Jun-2010
Proceedings of the ASME Turbo Expo 2010
Yes
International
ASME Turbo Expo 2010: Power for Land, Sea and Air
June 14-18, 2010
Glasgow
United Kingdom
[en] gas path analysis ; frequency domain ; least-squares
[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.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/40611
ASME Paper GT2010-22635

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