关键词: 航空发动机, 故障彩色图谱, 模式识别, 故障诊断

Abstract: To identify the suspicious components of aero engines massive monitoring data quickly,a new kind of fault model identification method based on fault color picture was put forward.Aiming at the characteristics of aero engines monitoring data and fault mechanism,the monitoring data were mapped to the corresponding threshold spaces,and the fault color picture was built.Then the property extraction method for fault color picture and the construction of standard fault color picture database were researched.By computing the similar degree between the fault color picture and each element of the standard fault color picture database,the fault model of aero engines was identified.The application results showed that the proposed method could identify the fault model of aero engines effectively and feasibly.

Key words: aero-engines, fault color picture, mode identification, fault diagnosis