| abstract | 第5-6页 |
| Chapter 1 Research introduction and background | 第8-36页 |
| 1.1 Significance of the study | 第8页 |
| 1.2 Literature review | 第8-35页 |
| 1.3 Research objectives | 第35-36页 |
| Chapter 2 Methodology | 第36-44页 |
| 2.1 Standardization of gears | 第36页 |
| 2.2 Modeling involute gears | 第36-44页 |
| Chapter 3 Finite element modeling and analysis of spur gear | 第44-72页 |
| 3.1 FE model of spur gear | 第44-52页 |
| 3.2 Results and discussion | 第52-70页 |
| 3.3 Mechanism of tooth surface micro pitting failure and improvement | 第70-71页 |
| 3.4 Mechanism of tooth fatigue fracture at root and improvement | 第71-72页 |
| Chapter 4 Finite element modeling and analysis of helical gear | 第72-86页 |
| 4.1 Helical model | 第72-74页 |
| 4.2 Results and discussion | 第74-84页 |
| 4.3 Mechanism of tooth surface micro pitting failure and improvement | 第84-85页 |
| 4.4 Mechanism of tooth fatigue fracture at root and improvement | 第85-86页 |
| Chapter 5 Conclusion and recommendations | 第86-88页 |
| 5.1 Conclusion | 第86页 |
| 5.2 Recommendations and future work | 第86-88页 |
| References | 第88-91页 |
| Acknowledgements | 第91页 |
