文摘
英文文摘
论文说明：List of Figures、List of Tables
声明
Chapter 1 Introduction
1.1 Background
1.2 Objective and scope of work
1.3 Organization of the thesis
Chapter 2 Literature Review
2.1 Mechanism of gearbox vibration and noise
2.2 Dynamic analysis
2.3 Modal Analysis
2.3.1 Effect of exciting displacement on vibration
2.3.2 Effect of frequency on vibration
2.3.3 Effect of damping on vibration
2.4 Design sensitivity and optimization for low vibration
2.5 Effect of Stiffeners
Chapter 3 Gearbox Geometric and Finite Element Model
3.1 Gearbox Geometric modeling
3.2 Gearbox Finite Element Modeling
3.3 RSSSCON Shell to Solid Transition
3.4 Stiffeners Added on Top Wall of Shell-Solid Finite Element Modeling
3.5 Summary
Chapter 4 Modal Analysis
4.1 Normal modes Analysis
4.2 Solid Gearbox Modes and Mode shapes
4.2.1 First mode and mode shapes
4.2.2 Fourth mode and mode shapes
4.2.3 Twentieth mode and mode shapes
4.3 Shell-Solid Gearbox Modal Analysis
4.4 Effect of Stiffeners on Modal Analysis
4.5 Summary
Chapter 5 Real Eigenvalue Sensitivity Analysis
5.1 Realeigen value sensitivity
5.2 Gear Mesh Frequency
5.3 Design variables
5.4 Design Properties：
5.5 Design Objective
5.6 Design Response
5.7 Design Constraint
5.8 Real Eigenvalue Sensitivity Analysis Results：
5.8.1 Real Eigenfrequency Analysis of Top Casing：
5.8.2 Real Eigenfrequency Analysis of Top Wall
5.8.3 Real Eigenfrequency Analysis of Base Front Wall
5.8.4 Real Eigenfrequency Analysis of Base Side Wall
5.9 Summary
Conclusion
Future Work
References
Acknowledgement
