# Dynamic Analysis of High-Speed Railway Alignment: Theory and Practice

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Author: Sirong Yi
Language: English
ISBN/ISSN: 9787564361358
Published on: 2018-06
Soft Cover

Dynamic Analysis of High-Speed Railway Alignment: Theory and Practice elaborates on the dynamic analysis theory and method on spatial alignment parameters of high-speed railways, revealing the interaction mechanism between vehicle-track dynamic performance and track parameters of high-speed railways. It ascertains the influence rules of track structure and track geometry on vehicle-track dynamic performance, establishes the relationship models between vehicle-track dynamic performance and curve dynamic characteristic parameters, and defines the calculation relationship between lateral acceleration of car body on curves and track parameters.

This book can be used as a reference book for scientific researchers, engineering technicians and management engaged in railway engineering, and will be very helpful for railway technicians who want to learn more about route planning, design, and construction and maintenance technologies of high-speed railways.

Presents the dynamic effects between the running speed of high-speed trains on curves and spatial curve technical parameters
Provides dynamic analysis, theory and methods on curve parameters of high-speed railways and improves the calculation theory on spatial alignment of high-speed railways
Covers minimum curve radius, transition curve length, minimum radius of vertical curve, steepest slope, minimum slope length and length of intermediate straight line

CHAPTER 1 Introduction
1．1 Target Speed for High-Speed Railway
1．1．1 The Principle of Determining Target Speed for High-Speed Railway
1．1．2 The Influence Factor of Target Speed for High-Speed Railways
1．2 The Background and Overview of High-Speed Rail Curve Parameters
1．2．1 Background
1．2．2 Research Situation
1．3 Principle of Minimum Curve Radius Based on Optimal Dynamics Performance

CHAPTER 2 Models for Vehicle-Track Dynamic Simulation on Horizontal Curve Sections of High-Speed Railways
2．1 Alignment Models
2．1．1 The Line Space Coordinate System
2．1．2 Line Space Linear Model
2．2 Vehicle Models
2．2．1 Vehicle System Dynamics Model to Simplify Topology
2．2．2 The Equations of Vehicle Motion
2．3  Track Structure Models
2．3．1 Ballasted Track Structure Model and Dynamic Equations
2．3．2 The Structure Models and Dynamic Equations of the Slab Track
2．4 Wheel-Rail Three-Dimensional Dynamically Coupling Model
2．4．1 Geometric Parameters of the Wheel — Rail Spatial Contact
2．4．2 Contact Force
2．5 Track Irregularity Excitation Model
2．5．1 Geometrical Irregularity of the Track
2．5．2 The Model of Random Irregularity of the Track
2．6    Solution Method for the Vehicle——Track Coupling Model
2．6．1 Numerical Integration Method
2．6．2 Wheel-Rail Excitation Input Model
2．6．3 Data Storage Format
2．6．4 Flowchart of the System
2．6．5 Program Verification
CHAPTER 3 The Effect Law of the Curve Parameters of a High-Speed Railway on Vehicle-Line Dynamic Performance
3．1 The Calculation Parameters of the Curve and the Dynamic Performance Evaluation Index of the Vehicle-Line System
3．1．1 The Calculation Parameters and Calculation Conditions
3．1．2 Evaluation Index of the Dynamic Performance of the Vehicle System
3．2   The Influence Law of Curve Negotiation Speed on the Vehicle  - Track System Dynamic Characteristics
3．2．1 The Simulation Calculation Results
3．2．2 The Influence Law of Curve Negotiation Speed on the Vehicle-Track System Dynamic Characteristics
3．3 The Influence Law of Curve Radius on the Vehicle-Track System Dynamic Characteristics
3．3．1 The Simulation Calculation Results
3．3．2 The Influence Law of Curve Radius on the Vehicle-Track System Dynamic Characteristics
3．4 The Influence Law of the Actual Elevation of the Curve on the Vehicle-Track System Dynamic Characteristics
3．4．1 The Simulation Calculation Results
3．4．2 The Influence Law of the Actual Elevation of Curve on the Vehicle - Track System Dynamic Characteristics……

CHAPTER 4 Dynamic Analysis of High-Speed Railway Curves：Theory and Practice
CHAPTER 5 The High-Speed Railway Comfort Degree：Experiment of Passenger in Curve
CHAPTER 6 Calculation Method for Minimum Curve Radiusof High-Speed Railways
CHAPTER 7 The Length of the Transition Curve
CHAPTER 8 The Minimum Length of the Intermediate Straight Line and Circular Curve
CHAPTER 9 The Radius of Vertical Curve