tb?#p?陈null 果南京航空航天大学,南京, 210016null nullK1:提出了航空发动机磨损故障的智能融合诊断方法b对油样分析中多种数据源信息的特点进行分析,根据不同的诊断目的对多种分析方法进行了相应的组合;利用基于规则的专家系统诊断技术,分别实现发动机磨损故障的定位a定性及定因的单项诊断;在此基础上,利用D null S证据理论,实现了发动机磨损故障的融合诊断;最后用算例验证了方法的正确性和有效性b1oM:tb?;Ed; D null Sms|: V23 null null nullcI|: 1004- 132( 2005) 04- 0299- 04Intelligent Fusion Diagnosis of Aeroengine Wear FaultsChen GuoNanjing University of Aeronautics and Astronautics, Nanjing, 210016Abstract:A imming at aeroengine wear faults diagnosis, a new method, intelligent fusion diagnosisof aeroengine wear faults was put forward. Firstly, the characteristics of manifold data sources fromoil analysis were analyzed, and they were combined according to various diagnosis objective. Secondnullly, they are used respectively to diagnose engine wear faultsnull parts, properties, and reasons by ExpertSystem ( ES) method based on knowledge rule. On these basis, fusion diagnosis of aeroengine wearfaultsnull parts and reasons was carried out by D- S evidence theory. Finally, an example is given toshow that the presented method is corrective and effective.Key words: aeroengine; wear; expert system ( ES) ; data fusion; D- S evidence theoryl: 2004- 04- 13:2tbt?v( S0293-071) ;2tbt?vtS( Y0202-M H)0 null 引言.0L/m.:Sa, 1995 3 nullL,iV.N!9.:bv, 1991 4 nullv5.!9m( 1- 5) .:, 1997(I null)?)Te:李醒飞3, 1967M3b?vk/#NSELiqapVb1Z_;2_a3d3TdbSES/B1b?V44b张晨阳,3, 1967M3b?qb张国雄,3, 1936M3b?vk/#NSELiqapV3=b郭敬滨,3, 1959M3b?vk/#NSELiqb(302:)|,BT#pxbsx+$,F,?5ZE,sY?#pa#ybV,ZE?4?yqbZE?8?k4VL7bID: 1 null6,biv,+,.!#p.:8, 2001 2 nulluZ,0.As/+., 1998, 18( 1) : 45 52 3 null,aq.#pD- S., 1999, 19( 2) :145 150 4 null Kai G. Archit ecture and Design of a Diagnost ic Innullformat ion Fusion System. Artificial Intelligence forEngineering Design, Analysis and Manufact uring,2001, 15: 335 338 5 null,oy.?#pEd.:S, 1997 6 null1*,b.!#pEd#Ll.:, 2000 7 null Anderson D P.m.3,r.:, 1987 8 null Dempster A P. Upper and Low er Probabilities Innullduced by a Multi - valued Mapping. Annals ofMathematical Stat istics, 1967, 38: 325 339 9 null Shafer G. A Mathematical Theory of Evidence.New Jersey: Princet on University Press, 1976 10 nullS.*-w.:S, 2002(I nullS)Te:陈null 果,3, 1972M3b2tbt?vtqapVbZ_tb?S#p?aa*L.Eam)#TMYb?V30b306S1642005M2/