Automatic fault graph developing method based on FEMA
                                                                                 LV Xiao juan
                              （School of Electromechanical Engineering, Zhongshan PolyTechnic, Zhongshan 528404, China）


Abstract: Aiming at the problem of building automatically fault graph（FG ）model of complex electromechanical system, the method of failure mode and effects analysis was studied, the failure mode correlation effects and logical relationship based on FMEA were analyzed, the relationship between fault associate matrix and formalized expression was established. A method was presented to accomplish from fault associate matrix to building FG model automatically on the base of FMEA. The hierarchical decomposition and FMEA were evaluated on the large air compressor unit, building FG model automatically based on FMEA were tested. The results indicate that the proposed method can improve the accuracy and the efficiency of building FG model, and by which can achieve the accurate FG model for the complex electromechanical system.
Key words: complex electromechanical system; fault diagnosis; fault graph; failure mode and offects analysis(FMEA)