Monitoring of an aircraft engine for anticipating maintenance operations

A system for monitoring an aircraft engine, comprising:

• circuitry configured to
• electronically collect time history measurements of variables related to a current engine and its environment including a first set of measurements on endogenic variables describing behavior of the engine and a second set of measurements on exogenic variables describing acquisition context, during each acquisition;
• standardize measurements related to the endogenic variables taking account of measurements related to the exogenic variables to form an entry point representing a condition of the current engine in a multi-dimensional space;
• project each entry point in the multi-dimensional space onto an image point of a previously constructed map, using a determined compression technique, to form a sequence of image points on the map reflecting a distribution of entry points in the multi-dimensional space, the image points forming a current trajectory representative of a change to the condition of the current engine;
• compare a portion of an end of the current trajectory with previously recorded portions of trajectories of other aircraft engines, kept in a database to search for similar trajectories;
• analyze statistical variation of the end of current trajectory as a function of the similar trajectories;
• and
• forecast maintenance operations on the current engine.

A non-transitory computer-readable storage medium storing computer-readable instructions that, when executed by a computer, cause the computer to perform a method comprising:

• electronically collecting time history measurements regarding variables related to a current engine and its environment, including a first set of measurements regarding endogenic variables describing behavior of the engine and a second set of measurements regarding exogenic variables describing acquisition context, during each acquisition;
• standardizing measurements related to the endogenic variables taking account of measurements related to the exogenic variables to form an entry point corresponding to a condition of the current engine in a multi-dimensional space, for each acquisition;
• projecting, using a determined compression technique, each entry point in the multi-dimensional space onto an image point on a previously constructed map, to form a sequence of image points on the map reflecting a distribution of entry points in the multi-dimensional space, the image points forming a current trajectory representative of a change to the conditions of the current engine;
• comparing a portion of an end of the current trajectory with previously recorded portions of trajectories of aircraft engines kept in a database to search for similar trajectories;
• analyzing statistical variation of the end of current trajectory as a function of the similar trajectories;
• and
• forecasting maintenance operations on the current engine.