FOREWORD PREFACE CHAPTER 1 Introduction 1.1 Overview 1.2 Origin and Development of Pantograph and Overhead Contact Line Systems 1.2.1 Origin of Pantograph and Overhead Contact Line Systems 1.2.2 Development of Pantograph and Overhead Contact Line Systems 1.3 Requirement and Specification of Pantograph and Overhead Contact Line Systems 1.3.1 Geometrical Requirement 1.3.2 Mechanical Requirement 1.3.3 Material Requirement 1.3.4 Electrical Requirement 1.3.5 Environmental Requirement 1.3.6 Operation and Maintenance Requirement 1.4 Core Issues of Pantograph and Overhead Contact Line Systems and the Framework of This Book Brief Summary CHAPTER 2 Pantograph 2.1 Overview 2.2 Basic Structure of Pantograph 2.2.1 Pantograph Head 2.2.2 Frame 2.2.3 Base Frame 2.2.4 Drive System 2.3 Characteristics of Pantographs 2.3.1 Electric Performance 2.3.2 Static Contact Force 2.3.3 Aerodynamic Force 2.3.4 Component of Dynamic Contact Force 2.3.5 Contact Force 2.3.6 Average Uplift Force 2.3.7 Dynamic Characteristics 2.4 Main Test of Pantograph 2.5 Application and Development of Pantographs in Chinese Railways 2.5.1 Low-Speed Stage 2.5.2 Middle-Speed Stage 2.5.3 High-Speed Stage 2.6 Application of Pantographs in Urban Rail Transit Brief Summary CHAPTER 3 Geometric Properties of Pantographs and Contact Lines 3.1 Overview 3.2 Gauge 3.3 Pantograph and Contact Line Areas 3.4 Geometric Properties of Pantographs 3.4.1 Operating Range of Pantograph 3.4.2 Geometric Profile of Pantograph Head 3.4.3 Dynamic Envelope of Pantograph 3.5 Geometric Properties of Overhead Contact Lines 3.5.1 Lateral Shift of Contact Wire at Registration Point 3.5.2 Lateral Shift of Contact Wire Under Side Wind 3.5.3 Height of Contact Wire 3.5.4 Slope of Contact Wire 3.5.5 Steady Arm and Its Working State 3.5.6 Tension Length and Overlap 3.5.7 Contact Line Above Turnout 3.5.8 Neutral Section 3.6 Geometrical Characteristics of Pantographs and Contact Lines on Typical High-Speed Railways Brief Summary CHAPTER 4 Dynamic Interaction Between Pantograph and Contact Line 4.1 Overview 4.2 Elasticity and Nonuniformity Coefficient of Elasticity of Contact Line …… CHAPTER 5 Material Interface of Pantograph and Contact Line CHAPTER 6 Electric Contact Properties of Pantograph and Contact Line CHAPTER 7 Design and Construction of Pantograph and Contact Line Systems CHAPTER 8 Operation and Maintenance of Pantograph and Contact Line Systems CHAPTER 9 Parameter Measurements of Pantographs and Contact Line Systems REFERENCES INDEX