Shaft shear detection through shaft oscillation
US10228304B2 · kind B2 · utility
5Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2016 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Jan 10, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/80
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is described a shaft shear event detection method. The method comprises storing in memory a shaft oscillation signature determined as a function of known characteristics of the shaft and associated with a shaft shear event; monitoring a rotational speed of the shaft; detecting from the rotational speed an oscillation wave superimposed on the rotational speed, the oscillation wave having a wave modulation frequency and a wave modulation amplitude; comparing the oscillation signature to the oscillation wave; and detecting the shaft shear event when the oscillation wave corresponds to the oscillation signature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.