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Crack fault diagnosis based on MEP and frequency contour lines

LIU Ming-jun1,XIU Li-ming2,LI Jin-ping2,PENG Xi-yuan1 (1.School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China;2.School of Information Science and Engineering,University of Jinan,Jinan 250022,Shandong,Chioa)  
On the basis of a traditional evolutionary algorithm,a new method of crack fault diagnosis is discussed.The method uses the inherent frequencies as crack diagnostic parameters.According to the intersection point of frequency contour lines and the forecasted results of MEP,the structural crack position is located.The results show that the method can effectively integrate both advantages and achieve rapid and accurate location of the crack.
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