Snecma

Safran Aircraft Engines

Guilhem Foiret

Benjamin Pierre Lamoureux

Francois Demaison

Fabien Segon

François Demaison

A method for monitoring an ignition sequence of an engine, in particular a turbomachine engine, including the following steps: (i) defining an ignition time of the engine for a defined starting parameter, (ii) comparing the ignition time of the engine defined in this way with a reference ignition time expected for a reference engine and for this starting parameter, (iii) deducing an indicator of the bringing into operation of the engine, (iv) repeating steps (i) to (iii) for this starting parameter, for each bringing into operation of the engine of the sequence, and (v) on the basis of the change in the indicator, generating a degradation alert for the ignition sequence of the engine.

Method for monitoring an ignition sequence of a turbomachine engine

A method of constructing a behavior model () of an airplane engine, in particular in order to track the operation of the engine, the method comprising a training step () of training at least one statistical regression function on the basis of a generic database () containing data from a plurality of airplane engines in order to establish a generic behavior model () of the airplane engines, and an additional step of resetting the generic behavior model from data in a database () specific to the above-mentioned airplane engine, in order to establish a behavior model () that takes account of features specific to that engine.

Method of constructing a behavior model of an airplane engine

A method and a system for monitoring a measuring chain arranged to collect over time measures relating to a turbojet engine of an aircraft, the system including a processor configured to build a health indicator of the measuring chain based on counting transitions between successive health words defining a validity score of corresponding successive measures.

System for monitoring a measurement chain of a turbojet engine

A method for monitoring at least two temperature sensors of a turbomachine that is aligned along a reference plane, the two temperature sensors being located in the same transverse plane of the turbomachine, the method including detecting the stoppage of the turbomachine; waiting for a period at least equal to a predetermined threshold period; measuring the temperature with each of the two temperature sensors; comparing the two temperatures measured.

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Paris, France

Guilhem Foiret