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《Journal of Vibration and Shock》 2011-09
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Noval fault diagnosis approach using time-frequency slice analysis and its application

DUAN Chen-dong1,GAO Qiang2 (1.School of Electronic and Control Engineering,Chang'an University,Xi'an 710064,China; 2.School of Automobile,Chang'an University,Xi'an 710064,China )  
In order to extract fault features from vibration signal,a noval fault diagnosis approach using time-frequency slice analysis was proposed.Vibration signal was decomposed by applying frequency slice wavelet transform(FSWT).Thereafter,on the basis of time-frequency energy distribution of the decomposed components,zoom analysis was adopted over those interested time-frequency slice intervals,selected for feature extraction.By making time-frequency segmentation and signal reconstruction,features in time and frequency domain were revealed over the selected slice intervals.As a result,the fault features were successfully separated from the vibration signal.The proposed approach can efficiently extract correct fault characteristic information for condition monitoring and fault diagnosis.A satisfactory effect has appeared on rub fault detection of a gear-box in an oil refinery.
【Fund】: 国家科技支撑计划项目(2008BAJ09B06)
【CateGory Index】: TH165.3
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 LIU Xiao-feng,BO Lin,QIN Shu-ren(The State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400044,China);Rotating speed-based variable window STFT[J];Journal of Vibration and Shock;2010-04
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Li Xiang-yang,YAN Jie(Department of Mechanical Engineering of Xi'an aircraft specifically Xi’an,710077);Reciprocating Chaotic vibration response characteristics of identification[J];Sichuan Nonferrous Metals;2010-02
2 GAO Li-xin TANG Wen-liang XU Yong-gang YIN Hai-chen (The Key Laboratory of Advanced Manufacturing Technology,College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,Beijing 100022,China);Research on Application of Redundant Second Generation Wavelet Transform in Denoising[J];Journal of Beijing University of Technology;2008-12
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【Secondary Citations】
Chinese Journal Full-text Database 2 Hits
1 LUAN Jun-ying,KANG Hai-ying,ZHENG Hai-qi,CAO Jin-hua,TIAN Guang (Department of Guns Engineering,Ordnance Engineering College,Shijiazhuang 050003,China);Application of Order Tracking in Rotating Machinery in Fast Run-up State[J];Journal of Ordnance Engineering College;2005-02
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