| タイトル | Method and apparatus for in-situ detection and isolation of aircraft engine faults |
| 本文（外部サイト） | http://hdl.handle.net/2060/20080009636 |
| 著者（英） | Bonanni, Pierino Gianni; Brunell, Brent Jerome |
| 著者所属（英） | General Electric Co. |
| 発行日 | 2007-10-09 |
| 言語 | eng |
| 内容記述 | A method for performing a fault estimation based on residuals of detected signals includes determining an operating regime based on a plurality of parameters, extracting predetermined noise standard deviations of the residuals corresponding to the operating regime and scaling the residuals, calculating a magnitude of a measurement vector of the scaled residuals and comparing the magnitude to a decision threshold value, extracting an average, or mean direction and a fault level mapping for each of a plurality of fault types, based on the operating regime, calculating a projection of the measurement vector onto the average direction of each of the plurality of fault types, determining a fault type based on which projection is maximum, and mapping the projection to a continuous-valued fault level using a lookup table. |
| NASA分類 | Quality Assurance and Reliability |
| 権利 | No Copyright |
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