The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2026
Filed:
Apr. 20, 2023
Safran, Paris, FR;
Safran Aircraft Engines, Paris, FR;
Dany Abboud, Moissy Cramayel, FR;
Julien Christian Pascal Griffaton, Moissy Cramayel, FR;
Mohammed El Badaoui, Moissy Cramayel, FR;
José-Luis Gomez Chirinos, Moissy Cramayel, FR;
Christian Courrech-Nielsen, Moissy Cramayel, FR;
SAFRAN, Paris, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
A method for monitoring a rotating machine in order to detect a fault in a bearing, the method including acquiring, from the rotating machine, a vibration signal measured by a vibration sensor; determining a first-order spectrogram by first-order cyclostationary analysis of the vibration signal using a delta transform and spectral standardisation; determining a second-order spectrogram by second-order cyclostationary analysis of the vibration signal using averaged cyclic coherence, a delta transform and spectral standardisation; and detecting a vibration signature of the fault in the bearing on the basis of the first-order spectrogram and the second-order spectrogram.