Method for fault diagnosis of a turbine engine

Details Method for fault diagnosis of a turbine engine Method for fault diagnosis of a turbine engine

2004-03-16

2009-06-23

Tran, Khoi (Department: 3664)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S029000, C701S035000, C701S033000, C701S009000, C701S034000, C701S008000, C701S099000, C701S010000, C701S106000, C706S052000, C706S050000, C706S045000, C340S438000, C340S439000, C073S112010

Reexamination Certificate

active

07552005

ABSTRACT:
A method of diagnosing a turbine engine includes the steps of acquiring engine operating parameters; calculating corresponding engine residual values; computing the mean and the standard deviation of each engine residual value; normalizing dynamically each engine residual value to yield normalized engine residuals; mapping, via a cluster technique mapping, the normalized engine residuals as input vectors into an engine condition space having clusters representing either normal vector engine conditions or faulty vector engine conditions; and identifying a closest cluster within the engine condition space to determine whether the engine under analysis is normal or faulty. A belief factor may be obtained as a function of the distances between the input vectors and specific clusters.

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