Methods and systems for analyzing engine unbalance conditions
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United States of America Patent
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Jul 15, 2008
Grant Date -
Nov 29, 2007
app pub date -
Feb 20, 2007
filing date -
Dec 30, 2003
priority date (Note) -
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status (Latency Note)
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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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