Method for acoustic detection of malfunction of gas turbine engine in aircraft, involves utilizing active noise control device, and acoustic detector for analyzing temporal signal, and sending malfunction detection message if necessary

作者: Gerez Valerio , Blanchard Serge

DOI:

关键词: Operating frequencySignalActive noise controlFrequency bandRange (aeronautics)AcousticsGas turbinesComputer scienceDetector

摘要: The method involves providing an active noise control device (2), which is utilized for processing raw acoustic timing signal (S-t) from engine at a determined operating frequency range that outside predetermined band associated with malfunction of gas turbine engine. An detector (4) analyzing temporal event (Z-t), and sending detection message if necessary. independent claim also included system

参考文章(2)
Takayuki Okada, Fan noise canceller ,(1997)
Julien Griffaton, Serge Blanchard, Method of detecting damage to an engine bearing ,(2008)