Method and a system for monitoring vibratory phenomena that occur in an aviation gas turbine engine in operation
US8831860B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2010 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Aug 30, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/708
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of monitoring vibratory phenomena that occur in an aviation gas turbine engine in operation includes establishing a frequency spectrum of a vibratory signal representative of the operating state of the engine and of its components; using a plurality of vibratory signatures, each corresponding to a vibratory phenomenon that occurs during operation of aeroengines of the same type as the engine being monitored and originating from a defect in or an abnormal operation of a component of the engines; identifying, in the spectrum, the points of curves that match mathematical functions, each defining a vibratory signature; and for each identified curve corresponding to a defect of engine components, analyzing the amplitude associated with the points of the curve relative to predefined amplitude values corresponding to a degree of severity of the defect; and as a result of an amplitude value being exceeded or an abnormal operation being detected, issuing a message associated with the vibratory signature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.