声明
Abstract
摘要
TABLE OF CONTENTS
LIST OF TABLES
LIST OF FIGURES
1 INTRODUCTION
1.1 BACKGROUND
1.2 STATEMENT OF THE PROBLEM
1.3 SIGNIFICANCE OF THE STUDY
1.4 AIM AND OBJECTIVES OF THE STUDY
1.5 OVERVIEW OF DEEP SEA MINING
1.5.1 The CLB System(Continuous Line Bucket)
1.5.2 Hydraulic Mining System
1.6 PROBLEMS IN DEEP SEA MINING
1.7 OVERVIEW OF TRACKED VEHICLES
1.8 STRUCTURE OF THE THESIS
2 LITERATURE REVIEW
2.1 TERRA-MECHANICS
2.2 MODELLING OF TERRAIN BEHAVIOUR
2.3 MODELLING TERRAIN AS AN ELASTIC MEDIUM
2.4 MODELLING TERRAIN AS A PLASTIC MEDIUM
2.5 MODELLING TERRAIN BEHAVIOUR BASED ON THE CRITICAL STATE SOIL MECHANICS
2.6 MODELLING TERRAIN USING THE FINITE ELEMENT METHOD (FEM)
2.7 MODELLING TERRAIN BEHAVIOUR USING THE DISCRETE (DISTINCT) ELEMENT METHOD (DEM)
2.8 THE PRESSURE-SINKAGE RELATIONSHIP
2.9 SOIL COMPACTION AND “BULLDOZING”
2.10 THE TRACK-SOIL MODEL
2.11 SUMMARY
3 MINER TRACK SYSTEM ANALYSIS
3.1 TRACK SYSTEM ANALYSIS
3.2 FORCES ACTING ON THE TRACK
3.3 STATIC ANALYSIS
3.4 DYNAMIC ANALYSIS
3.4.1 Energy Analysis
3.5 FORCES ACTING ON THE TRACK DURING STEERING
3.5.1 Thrust and Steering Ratio
3.5.2 Amount of Slippage in Turning Motion
3.5.3 Turning Resistance Moment
3.6 EXPERIMENTATION
3.6.1 Materials and Equipment
3.6.2 Material Preparation
3.6.3 Experimental Procedure
3.6.4 Results and discussion
3.6 SUMMARY
4 SIMULATION
4.1 SIMULATION CONCEPT
4.2 RESULTS
4.2.1 Static Analysis
4.2.2 Dynamic Analysis
4.2.3 Steering Motion
4.3 DISCUSSION OF RESULTS
4.3.1 Statics
4.3.2 Dynamics
4.3.3 Steering
4.4 SUMMARY
5 DESIGN ANALYSIS
5.1 DESIGN CONCEPTS
5.2 MINER TRACK DIMENSIONS
5.3 SPROCKET
5.4 GROUSER
5.5 TRACK SHOE
5.6 ROAD-WHEEL
5.7 IDLER-WHEEL
5.8 CARRIER ROLLER
5.9 TRACK BODY
5.10 SUMMARY
6 OPTIMIZATION
6.1 OPTIMIZATION
6.2 MINER TRACK DIMENSIONS
6.3 SPROCKET
6.4 GROUSER
6.5 TRACK SHOE
6.6 ROAD-WHEEL
6.7 IDLER-WHEEL
6.8 CARRIER ROLLER
6.9 TRACK BODY
6.10 OPTIMIZATION SIMULATION CONCEPT
6.11 SUMMARY
7 TRACK VEHICLE SIMULATION WITH RECURDYN
7.1 RECURDYN SIMULATION
7.1.1 Track LM Toolkit
7.2 MINER TRACK MODELLING
7.3 SIMULATION
7.3.1 Initial Set of the Simulation
7.3.2 Simulation Results
7.4 DISCUSSION
7.5 SUMMARY
8 SUMMARY,CONCLUSION AND FUTURE PERSPECTIVES
8.1 CONCLUSION
8.2 THESIS INNOVATION
8.3 FUTURE PERSPECTIVES AND PROSPECTS
REFERENCES
APPENDIX ACADEMIC ACTIVITIES DURING THE RESEARCH PERIOD
ACKNOWLEDGEMENTS
DEDICATION
中南大学;