This communication deals with the modelling and simulation of a fixed-displacement axial-piston pump used in aerospace electro-hydrostatic actuators. The pump model is developed in the LMS-AMESim simulation environment to support the development of fault detection and identification features. The model-based fault diagnosis method is introduced first and the modelling needs are addressed. Then, a system-level pump model is proposed with special considerations to model architecture. The different ways to improve the model’s realism are reviewed, in particular concerning energy losses (bearing friction, leakages in gaps), barrel force balance, piston back pumping, piston eccentricity and pump loading for tests. Finally, directions of research in system-level modelling of hydraulic effects are suggested.
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ASME/BATH 2014 Symposium on Fluid Power and Motion Control
September 10–12, 2014
Bath, United Kingdom
Conference Sponsors:
- Fluid Power Systems and Technology Division
ISBN:
978-0-7918-4597-4
PROCEEDINGS PAPER
Modelling and Simulating the Pump of an Aerospace Electro-Hydrostatic Module for Fault Detection and Identification Purposes
Jean-Charles Mare,
Jean-Charles Mare
INSA, Université de Toulouse, Toulouse, France
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Garance Vinson,
Garance Vinson
Messier-Bugatti-Dowty, SAFRAN, Vélizy-Villacoublay, France
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Thomas Prado,
Thomas Prado
Messier-Bugatti-Dowty, SAFRAN, Vélizy-Villacoublay, France
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Michel Combacau
Michel Combacau
CNRS LAAS, Université de Toulouse, Toulouse, France
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Jean-Charles Mare
INSA, Université de Toulouse, Toulouse, France
Garance Vinson
Messier-Bugatti-Dowty, SAFRAN, Vélizy-Villacoublay, France
Thomas Prado
Messier-Bugatti-Dowty, SAFRAN, Vélizy-Villacoublay, France
Michel Combacau
CNRS LAAS, Université de Toulouse, Toulouse, France
Paper No:
FPMC2014-7803, V001T01A002; 10 pages
Published Online:
November 20, 2014
Citation
Mare, J, Vinson, G, Prado, T, & Combacau, M. "Modelling and Simulating the Pump of an Aerospace Electro-Hydrostatic Module for Fault Detection and Identification Purposes." Proceedings of the ASME/BATH 2014 Symposium on Fluid Power and Motion Control. ASME/BATH 2014 Symposium on Fluid Power and Motion Control. Bath, United Kingdom. September 10–12, 2014. V001T01A002. ASME. https://doi.org/10.1115/FPMC2014-7803
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