System and method for gearbox health monitoring
US7945397B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 2009 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Apr 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system includes a plurality of sensors configured to measure one or more characteristics of a gearbox. The system also includes a gearbox condition indicator device, which includes a plurality of sensor interfaces configured to receive input signals associated with at least one stage of the gearbox from the sensors. The gearbox condition indicator device also includes a processor configured to identify a fault in the gearbox using the input signals and an output interface configured to provide an indicator identifying the fault. The processor is configured to identify the fault by determining a family of frequencies related to at least one failure mode of the gearbox, decomposing the input signals using the family of frequencies, reconstructing a gear signal using the deconstructed input signals, and comparing the reconstructed gear signal to a baseline signal. The family of frequencies includes a gear mesh frequency and its harmonics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.