Method for predicting life span of rotary machine used in manufacturing apparatus and life predicting system
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United States of America Patent
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Apr 26, 2005
Grant Date -
Aug 14, 2003
app pub date -
Aug 28, 2002
filing date -
Aug 31, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for predicting life span of a rotary machine used in a manufacturing apparatus, includes: measuring rotary machine acceleration evaluation time series data with a sampling interval being less than a half the cycle of an analysis target frequency, a number of samplings being at least four times the analysis target frequency; generating evaluation diagnosis data based on variations in characteristics corresponding to the analysis target frequency by subjecting the evaluation time series data to frequency analysis; and determining the life span of the rotary machine using the evaluation diagnosis data.
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