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Smart maintenance of Aviation Hydraulic Fluid using an onboard monitoring and reconditioning System

Objective

Aviation hydraulic fluids are hygroscopic and, as a result, their lifetime is highly unpredictable. The performance of the entire aircraft hydraulic system is affected by the condition of the hydraulic fluid and if degradation goes undetected, it may cause damages with serious consequences. These may be economic at best or catastrophic at worst. At present, assessing the condition of the hydraulic fluid in an aircraft is laborious, time-consuming and expensive. Therefore the fluid is typically tested less than once a year, with the risk of unscheduled maintenance if the fluid has exceeded its limits of usage. Consequential interruption of the airline service bears a huge economic cost.

This project proposes the development of an optimised maintenance concept based on an autonomous onboard system capable of monitoring the fluid condition and restoring it when required. This will increase the lifetime of the fluid yet prevent damage caused by degraded fluid. If external reconditioning or change of the fluid should prove to be unavoidable, this could be scheduled to coincide with regular service and maintenance operations, thanks to the predictive capability of the monitoring system. Fibre-optic sensors using luminescent indicators as well as alternative optical and electrochemical sensors will be developed for fluid monitoring. Similarly, different water separation and elimination techniques will be investigated and selected.

The chosen approach yields a balanced-risk strategy in which established techniques are combined with cutting-edge research, the outcome of which results in concurrent individual deliverables of high intrinsic value, thereby enhancing the combined benefits expected from the project. The impact of this system would extend far beyond the consortium partners: the cost savings to airlines due to the optimised maintenance strategy will give European constructors such a competitive advantage that the entire industry will be strengthened.

Call for proposal

FP6-2005-AERO-1
See other projects for this call

Coordinator

INTERLAB INGENIERIA ELECTRONICA Y DE CONTROL S.A.U
Address
C/ Maria Tubau, 4 - 2
Madrid
Spain

Participants (12)

AIRBUS OPERATIONS SAS
France
Address
316, Route De Bayone
Toulouse
EADS DEUTSCHLAND GMBH
Germany
Address
Willy-messerschmitt-strasse
Munich
LUFTHANSA TECHNIK BUDAPEST KFT
Hungary
Address
Ferihegy Airport
Budapest
LOUGHBOROUGH UNIVERSITY
United Kingdom
Address
Ashby Road
Loughborough
INSTYTUT LOTNICTWA - INSTITUTE OF AVIATION
Poland
Address
Al. Krakowska 110/114
Warsaw (Warszawa)
SOFRANCE SA
France
Address
6 Et 8, Rue Maryse Bastie - Z.i. Des Gannes
BP 3 Nexon
UNIVERSIDAD COMPLUTENSE DE MADRID
Spain
Address
Avda. De Seneca, 2
Madrid
EUROPEAN AERONAUTIC AND DEFENCE AND SPACE COMPANY EADS FRANCE
France
Address
37, Boulevard De Montmorcy
Paris
FUNDACION INASMET
Spain
Address
Mikeletegi Pasealekua, 2- Parque Tecnologico
Donostia - San Sebastian
CENTRE DE TRANSFERT DE TECHNOLOGIES CERAMIQUES
France
Address
Rue Soyouz-parc D'ester
BP 36823 Limoges
COMPAÑIA ESPAÑOLA DE SISTEMAS AERONAUTICOS, S.A.
Spain
Address
Paseo De John Lennon, S/n
214 Madrid
GROUPE D'ETUDES EN PROCÉDÉS DE SÉPARATION
France
Address
Parc Scientifique Unitec 1, 2 Allée Du Doyen Georges Brus
Pessac