| 摘要 | 第4-5页 |
| Abstract | 第5页 |
| Chapter 1 Introduction | 第12-22页 |
| 1.1 The Source of Topic, Research Purpose and Significance | 第12-20页 |
| 1.1.1 The Source of Topic | 第12页 |
| 1.1.2 Research Background and Significance | 第12-15页 |
| 1.1.3 Objectives | 第15页 |
| 1.1.4 Research Inside and Outside of Country and Analysis | 第15-20页 |
| 1.1.4.1 Research Inside of Country | 第16-17页 |
| 1.1.4.2 Research Outside of Country | 第17-19页 |
| 1.1.4.3 Analysis of Literature Review of Inside and Outside of Country | 第19-20页 |
| 1.2 Main Contents of Research | 第20-22页 |
| Chapter 2 Hydraulic Measuring Method for Spool Pair Overlap Value | 第22-29页 |
| 2.1 Overlap Value and Analysis of Measuring Curve of the Slide Valve | 第22-25页 |
| 2.1.1 Introduction to Slide Valve | 第22-23页 |
| 2.1.1.1 Ring Groove Type Slide Valve | 第23页 |
| 2.1.2 Flow Gain Characteristics | 第23-25页 |
| 2.2 Hydraulic Measuring Method and Characteristics of Measuring Curves | 第25-28页 |
| 2.2.1 Introduction to Hydraulic Measurement System | 第25页 |
| 2.2.2 Principle of Flow-Type Hydraulic Measurement | 第25-26页 |
| 2.2.3 Characteristic Analysis of the Measuring Curve of the Spool Pair | 第26-28页 |
| 2.2.3.1 Calculation of the Superposition Quantity | 第27-28页 |
| 2.3 Summary | 第28-29页 |
| Chapter 3 Modeling and Simulation of Hydraulic Measurement System of Servo Valve Overlap Based on AMESim | 第29-43页 |
| 3.1 AMESim Simulation Platform | 第29-35页 |
| 3.1.1 Brief Introduction of AMESim Simulation Software | 第29-30页 |
| 3.1.2 AMESim Application in the Research of Hydraulic System | 第30页 |
| 3.1.3 Analysis on AMESim Hydraulic Components Model | 第30-32页 |
| 3.1.4 Simulation Process of AMESim | 第32-34页 |
| 3.1.5 Simulation Model of Flow-Type Hydrodynamic Measurement | 第34-35页 |
| 3.2 The Establishment of Simulation Analysis and Evaluation Standard | 第35-38页 |
| 3.2.1 Parameters of Test Bench | 第35-38页 |
| 3.3 Simulations Results | 第38-42页 |
| 3.3.1 Analysis on Flow Characteristic Curve | 第38-40页 |
| 3.3.2 Analysis on Pressure Characteristics Curve | 第40-41页 |
| 3.3.3 Analysis on Leakage Characteristics | 第41-42页 |
| 3.4 Summary | 第42-43页 |
| Chapter 4 Methodology and Numerical Modeling of Internal Characteristics of Spool Pair | 第43-57页 |
| 4.1 Hydrodynamics Theory | 第43-45页 |
| 4.1.1 Basic Assumptions | 第43-44页 |
| 4.1.2 Six Modes of Motion | 第44页 |
| 4.1.3 Boundary Conditions | 第44-45页 |
| 4.2 Fluid Solid Interaction | 第45-47页 |
| 4.3 Computational FSI | 第47-49页 |
| 4.3.1 Fluid-Structure Interaction Application Mode | 第47-48页 |
| 4.3.2 Arbitrary Lagrangian-Eulerian (ALE) Application Mode | 第48-49页 |
| 4.3.3 Axial Symmetry, Stress-Strain Application Mode | 第49页 |
| 4.4 Mathematical Model of Test Bench | 第49-50页 |
| 4.5 Laplace Transform and Frequency-Domain Analysis | 第50-52页 |
| 4.6 Numerical Model | 第52-56页 |
| 4.6.1 Problem statement | 第52页 |
| 4.6.2 Modeling Investigation | 第52-53页 |
| 4.6.2.1 Model Descriptions | 第52-53页 |
| 4.6.2.2 Transformation of Actual Slide Valve Geometry | 第53页 |
| 4.6.3 Modeling Physics and Equations | 第53-56页 |
| 4.6.3.1 Subdomain Settings and Fluid-Structure Interaction (FSI) | 第53-54页 |
| 4.6.3.2 Solid Domain and Fluid Domain | 第54页 |
| 4.6.3.3 Moving Mesh ALE | 第54-55页 |
| 4.6.3.4 Fluid-Structure Interaction (FSI) | 第55页 |
| 4.6.3.5 Boundary Conditions on Model | 第55页 |
| 4.6.3.6 Meshing | 第55-56页 |
| 4.6.3.7 Solver Parameters Setting | 第56页 |
| 4.7 Summary | 第56-57页 |
| Chapter 5 Post Processing Simulation Results and Analysis | 第57-67页 |
| 5.1 Post Processing Results of 2D Asymmetric Spool Pair | 第57-59页 |
| 5.1.1 Model 1; Axisymmetric Spool Pair with Zero Clearance | 第57-58页 |
| 5.1.2 Model 2; Axisymmetric Spool Pair with2μm Clearance | 第58-59页 |
| 5.2 Hydrodynamic Damping | 第59-63页 |
| 5.2.1 Model 1 | 第59-61页 |
| 5.2.2 Model 2 | 第61-63页 |
| 5.3 Numerical Models | 第63-64页 |
| 5.3.1 Model 1 | 第64页 |
| 5.3.2 Model 2 | 第64页 |
| 5.4 Discussion and Analysis | 第64-66页 |
| 5.5 Summary | 第66-67页 |
| Chapter 6 Experiment Study on Static Characteristic Test System of Spool Valve | 第67-71页 |
| 6.1 Experimental Study on the Measurement Performance of Superposition Quantity | 第68页 |
| 6.2 Analysis of Experimental Results | 第68-70页 |
| 6.3 Summary | 第70-71页 |
| Conclusion | 第71-73页 |
| 结论 | 第73-75页 |
| Reference | 第75-79页 |
| Acknowledgement | 第79页 |
