Method for fault diagnosis of a turbine engine
US7552005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2004 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Aug 6, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/024
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of diagnosing a turbine engine includes the steps of acquiring engine operating parameters; calculating corresponding engine residual values; computing the mean and the standard deviation of each engine residual value; normalizing dynamically each engine residual value to yield normalized engine residuals; mapping, via a cluster technique mapping, the normalized engine residuals as input vectors into an engine condition space having clusters representing either normal vector engine conditions or faulty vector engine conditions; and identifying a closest cluster within the engine condition space to determine whether the engine under analysis is normal or faulty. A belief factor may be obtained as a function of the distances between the input vectors and specific clusters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.