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《Journal of Yanshan University》 2011-06
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A method on analyzing feature information in mechanical system based on topological dynamical system

ZHANG Yu-cun,MA Rui,FU Xian-bin,KONG Tao(College of Electrical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China)  
Aiming at the problem of mechanical system feature information extraction,a new modeling and feature extraction method of mechanical system is putted forward.First,the state feature information topological space of mechanical system is established,thus,the topological dynamical system model is constructed.Then based on the topologically transitivity of the system,tracing the mechanical system feature information converting process and transmitting process,the feature extraction of the mechanical system is realized.The proposed method is applied to the symmetry rotating machinery with single fault of rub-impact,single fault of crack and coupling fault for feature extraction,the feasibility of the proposed approach is demonstrated by simulation experiment.
【CateGory Index】: TH165.3
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