Aero engine is a complex equipment operating under extreme conditions like very cold to very hot temperatures, fast rotating components, high and low pressure, and disturbances in the inlet pressures due the environmental or maneuvers and coordination of different systems based on throttle position and altitude.
One of the most widely used technique of rotating components is fluid monitoring, as fluid is the medium passing all over the stressed parts it is more likely that it carries evidence of faults from all the parts it comes in contact with. This necessitated the development of various condition monitoring technologies to monitor highly rotating stressed parts. The paper presents an overview of wear debris condition monitoring equipment developed over a period of time from the end user perspective i.e. pilot and the maintenance communities.
Excerpts from the Paper
This new sensor development involves in-depth knowledge of materials, conditions inside engine, types of failures, along with the extensive use of electromagnetic,electrical circuit analysis and Matlab tools is helping the time to market along with the prototype testing and realtime testing on engine is essential.
The initial sensors developed to understand the type of failure or safe guard the other components from this debris becoming abrasive went through lot of technological changes primarily based on the changes of maintenance philosophies and also on the developments in materials for the rotating components.The challenge is to integrate the new technologies on the engine so that they can be utilized to monitor the system online and corrective actions can be planned by maintenance crew present on ground.