|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
|A study on engine health monitoring in the frequency domain|
|Borguet, Sébastien [Université de Liège - ULg > 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 - ULg > Département d'aérospatiale et mécanique > Turbomachines et propulsion aérospatiale >]|
|Proceedings of the ASME Turbo Expo 2010|
|ASME Turbo Expo 2010: Power for Land, Sea and Air|
|June 14-18, 2010|
|[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|
|ASME Paper GT2010-22635|
|File(s) associated to this reference|
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