Method for predicting life span of rotary machine used in manufacturing apparatus and life predicting system
US6885972B2 · kind B2 · utility
12Cited by
19References
8Claims
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Key dates
| Filing date | Aug 28, 2002 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Aug 28, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/80
- WIPO fieldControl
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.