Sideband energy ratio method for gear mesh fault detection
US8171797B2 · kind B2 · utility
4Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2010 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Dec 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a method for assessing deterioration in a gearbox. Data is obtained from an operating gearbox regarding harmonic frequencies and their related sidebands generated as a consequence of the gearbox operation. In a first embodiment, a Sideband Energy Ratio (SER) is calculated by dividing the amplitude of the sum of sideband signals associated with a harmonic to the amplitude of the harmonic. In a second embodiment, a SER is calculated based on sideband amplitudes associated with adjacent harmonics. The ratio may be monitored over time or compared to one or more values to provide an indication of deterioration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.