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滚动轴承初始故障时间估计方法的研究

摘要第7-8页
Abstract第8-9页
Chapter 1 Introduction第13-21页
    1.1 Background and motivation第13-14页
    1.2 Literature review第14-19页
        1.2.1 Early fault diagnosis methods of rolling element bearing第14-17页
        1.2.2 The challenging problems of early fault feature extract ion of rollingelement bearing第17-19页
    1.3 Thesis structure第19-21页
Chapter 2 Rolling Element Bearing Fault Features Analysis第21-32页
    2.1 Basic constructions of rolling element bearing第21-22页
    2.2 Failure Mode of rolling element bearing第22-25页
    2.3 Characteristic frequencies of rolling element bearing第25-29页
        2.3.1 Vibration induced by rolling element bearing fault第25-27页
        2.3.2 Four stages of bearing failure第27-29页
    2.4 Envelope analysis technique第29-31页
    2.5 Summary第31-32页
Chapter 3 Fault Diagnosis of Rolling Element Bearings Based on EEMD, MED and Protrugram第32-46页
    3.1 Theoretical background第32-36页
        3.1.1 Mode mixing and EEMD第32-34页
        3.1.2 MED Technique第34-35页
        3.1.3 Protrugram第35-36页
    3.2 Bearing fault diagnosis method based on EEMD, MED and Protrugram第36-37页
    3.3 Experimental verification and discussion第37-45页
        3.3.1 Diagnosis of the bearing with inner race defect第38-42页
        3.3.2 Diagnosis of the bearing with outer race defect第42-45页
    3.4 Summary第45-46页
Chapter 4 Initial Fault Time Estimation of Rolling Element Bearing Based on EEMD, MED and Protrugam第46-56页
    4.1 Framework of the proposed method第46-48页
    4.2 Experiment Test rig第48-49页
    4.3 Experiment Results第49-55页
    4.4 discussions第55页
    4.5 Summary第55-56页
Conclusions and Future Work第56-58页
    Conclusions第56页
    Future work第56-58页
References第58-63页
Acknowledgements第63-64页
List of Publications第64页

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