YANG Jian-ping, HUANG Hong-zhong, MIAO Qiang, et al. Diagnosis method of aeroengine early fault based on the Dempster-Shafer evidence theory[J]. 2008, 23(12).
YANG Jian-ping, HUANG Hong-zhong, MIAO Qiang, et al. Diagnosis method of aeroengine early fault based on the Dempster-Shafer evidence theory[J]. 2008, 23(12).DOI:
Based on the analysis of the characteristic of aeroengine early fault and information fusion
a method of forming the basic belief function was proposed when evidence theory was applied to information fusion of aeroengine fault symptom level.Thus
more precise early fault symptom could be attained.Moreover
the acquired fault symptom was applied to fuzzy cluster analysis to obtain aeroengine fault sources.Furthermore
the proposed method used fuzzy measure to express fault symptom
and considered the characteristics of imprecision
uncertainty and ambiguity of aeroengine early fault symptom.This is more suitable for the practical situation of aeroengine early fault.