System for detecting an impact on an aircraft engine impeller wheel
AssigneeSnecma
InventorsDavid Tourin, Valerio Gerez, Geoffroy Nicq
Life of this patent
Estimating the term…
Abstract
A method and a system for detecting an impact on an impeller wheel of an aircraft engine. A device acquires a revolutions per minute of the engine and a series of deflection signals representative of the deflections on the blades of the impeller wheel at the revolutions per minute. A device constructs signals for detecting impact on the impeller wheel by correlating each of the deflection signals with a predetermined signature of a shock on a blade at the revolutions per minute.
Claims10
A system for detecting an impact on an impeller wheel of an aircraft engine, comprising:
- acquisition means for acquiring a revolutions per minute of said engine and a series of deflection signals representative of the deflections on the blades of said impeller wheel at said revolutions per minute, a deflection signal being defined by a modification of the position of a blade at the moment when it passes in front of a sensor in relation to its reference position, and
- correlation means for constructing signals for detecting impact on said impeller wheel by correlating each of the deflection signals with a predetermined signature of a shock on a blade at said revolutions per minute.
A method for detecting an impact on an impeller wheel of an aircraft engine, comprising:
- acquiring a revolutions per minute of said engine and a series of deflection signals representative of the deflections on said blades at said revolutions per minute, a deflection signal being defined by a modification of the position of a blade at the moment when it passes in front of a sensor in relation to its reference position, and
- constructing signals for detecting impact on said impeller wheel by correlating each of the deflection signals with a predetermined signature of a shock on a blade at said revolutions per minute.
Dependencies are inferred from the claim text.