Data processing: generic control systems or specific application – Specific application – apparatus or process – Mechanical control system
Reexamination Certificate
2008-07-15
2008-07-15
Williams, Hezron E. (Department: 2856)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Mechanical control system
C073S066000, C700S280000, C706S023000
Reexamination Certificate
active
11708208
ABSTRACT:
Methods and systems for analyzing engine unbalance conditions are disclosed. In one embodiment, a method includes receiving vibrational data from a plurality of locations distributed over an engine and a surrounding engine support structure, and inputting the vibrational data into a neural network inverse model. The neural network inverse model establishes a relationship between the vibrational data and an unbalance condition of the engine, and outputs diagnostic information indicating the unbalance condition of the engine. In a further embodiment, a method further includes subjecting the vibrational data to a Fast Fourier Transformation to extract a desired once per revolution vibrational data prior to input to the neural network inverse model.
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Travis Matt H.
Vian John L.
Richardson, P.S. Robert R.
Shah Samir M.
The Boeing Company
Williams Hezron E.
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