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基于信号分析的引擎振动对连接器微动磨损的研究

详细概要第5-14页
Abstract第14页
Acknowledgements第15-19页
Notation第19-20页
Abbreviations第20-21页
1 Introduction第21-28页
    1.1 Background第21-22页
    1.2 Problem Description第22-24页
    1.3 Aim and Objectives第24页
    1.4 Research Question第24-25页
    1.5 Related Work第25-26页
    1.6 Outline of Thesis第26-28页
2 Theoretical Fundamentals第28-37页
    2.1 Electrical Connector第28-30页
    2.2 Electrical Contact第30页
    2.3 Fretting Corrosion第30-31页
    2.4 Fretting Movement第31-32页
    2.5 Rotating Machinery Analysis第32-35页
        2.5.1 Vibractions in Rotating Machines-Engine Vibrations第32-33页
        2.5.2 Fast Fourier Transform, FFT第33-34页
        2.5.3 Order Tracking第34页
        2.5.4 Rotational Speed Signals第34-35页
        2.5.5 RPM Maps- The Waterfall Plot第35页
    2.6 Sine Sweep Vibration Testing第35-36页
    2.7 Relative Displacement第36-37页
3 Engine Vibration Test and Data Analysis第37-43页
    3.1 Test Description第37-39页
    3.2 Data Analysis-Maximum Relative displacement第39-43页
4 Fretting Test in Engine x Direction第43-56页
    4.1 The Purpose of Experiment第43页
    4.2 Experimental Setup第43-51页
        4.2.1 Experimental Equipment第44-48页
        4.2.2 Experimental Procedure for Vibration Rig Test第48页
        4.2.3 Experimental Subject and Pre-Test第48-51页
        4.2.4 Input Parameters for Fretting Test第51页
    4.3 Experimental Results of Fretting Test第51-54页
        4.3.1 Fretting Test for 20 Hours第51-52页
        4.3.2 Inspection after Experimental Test第52-54页
        4.3.3 Comparing the Engine Vibration Test with the Fretting Test第54页
    4.4 Experimental Summary第54-56页
5 Fretting Test in Engine y direction第56-66页
    5.1 The Purpose of Experiment第56页
    5.2 Experimental Setup第56-61页
        5.2.1 Experimental Subject and Pre-Test第57-60页
        5.2.2 Input Parameters for Fretting Test第60-61页
    5.3 Experimental Results of Fretting Test第61-65页
        5.3.1 Fretting Test for 20 Hours第61页
        5.3.2 Inspection after Experimental Test第61-65页
    5.4 Experimental Summary第65-66页
6 Fretting Test with Current第66-80页
    6.1 The Purpose of Experiment第66页
    6.2 Experimental Setup第66-68页
        6.2.1 Experimental Equipment第66-67页
        6.2.2 Pre-Test (Determining the Dominating Frequency第67页
        6.2.3 Input Parameters for Fretting Test第67-68页
    6.3 Experimental Results第68-79页
        6.3.1 Fretting Test for 20 Hours第68-69页
        6.3.2 Comparing the Data from Pre-Test and Post-Test第69-75页
        6.3.3 Fretting Test for 8 Hours第75-77页
        6.3.4 Comparison of Third Experiment with Second Experiment第77-79页
    6.4 Experimental Summary第79-80页
7 FEM Simulation第80-92页
    7.1 The Purpose of Simulation第80页
    7.2 Simulation Procedure第80-85页
        7.2.1 Geometric Model第81-82页
        7.2.2 Material Properties第82页
        7.2.3 Define Contact第82-83页
        7.2.4 Mesh Control第83页
        7.2.5 Boundary Condition第83-85页
        7.2.6 Displacement Loading第85页
        7.2.7 Solver Option第85页
    7.3 Simulation Results第85-91页
        7.3.1 Analysing the Stress of Contact Surfaces第86-91页
    7.4 Simulation Summary第91-92页
8 Summary and Conclusions第92-94页
9 Future Works第94-95页
10 References第95-98页
Appendices第98-102页
    A.Relative Displacement Diagrams 85第98-102页

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