China High Speed Train The Key Technologyies And Maintenance System
CHINA High Speed Train
The key technologies and maintenance system
Gan Dunwen Associate Researcher
China Academy of Railway Sciences
中国高速铁路网规划
China high speed railway development planning
¾ Speed upgrade on existing railways: 200 ~ 250km/h，
8000 km
¾ 41 Passenger Dedicated
Lines by 2012, more than 13000 km;
¾ 16000km by 2020
CRH R&D System
CRH R&D System
Contents
Key technologies for High Speed Trains
HSTs Maintenance System in China
Challenges to CRH
Key technologies for HSTs
Key technologies --
System Integration
Key technologies --
System Integration
HSTs’ systems integrators – CSR & CNR
A high level of technology platform and R&D team of innovation
The world first-class bogie, car body, assembly, debugging production lines
Bogies Lines
Car-body Lines
Assembly Lines
Debugging Lines
• new-built 300 EMUs /year
• overhaul 200 EMUs/year
The whole manufacturing process technology design, craft standard system
Continuous improvement technology innovation system
Key technologies --
Bogies
Structure function
• Running Machinery
•The core of HSTs
• Loading, directing, suspension, traction and braking etc.
Keys
• Anti-roll movement
• Derailment safety
• Structural strength and reliability
Key technologies --
Bogies
Yaw damper
Nonlinear critical speed >550 km/h
• Improving box positioning stiffness according to line
Postioning Stiffness
conditions
• Selecting yaw damper parameters, and ensuring redundancy
• Determining the maintenance cycle to ensure a good equivalent
equivalent conicity
conicity
Wheel/rail surface
Matching
Key technologies --
Bodies
Structure characteristics
• Thin-walled cylindrical aluminum alloy welding structure • Drum wide body (3.3m), Large sections(11.2m2)
• Thin (1.5mm) and long (25m) profiles
• Overall carrying, hanging equipment to the base plate Keys z Structure strength z Modal designing z Vibration and noise reducing z drag reducing
气动
作用
Key technologies --
Bodies
Aluminum alloy
The key technologies and maintenance system
Gan Dunwen Associate Researcher
China Academy of Railway Sciences
中国高速铁路网规划
China high speed railway development planning
¾ Speed upgrade on existing railways: 200 ~ 250km/h，
8000 km
¾ 41 Passenger Dedicated
Lines by 2012, more than 13000 km;
¾ 16000km by 2020
CRH R&D System
CRH R&D System
Contents
Key technologies for High Speed Trains
HSTs Maintenance System in China
Challenges to CRH
Key technologies for HSTs
Key technologies --
System Integration
Key technologies --
System Integration
HSTs’ systems integrators – CSR & CNR
A high level of technology platform and R&D team of innovation
The world first-class bogie, car body, assembly, debugging production lines
Bogies Lines
Car-body Lines
Assembly Lines
Debugging Lines
• new-built 300 EMUs /year
• overhaul 200 EMUs/year
The whole manufacturing process technology design, craft standard system
Continuous improvement technology innovation system
Key technologies --
Bogies
Structure function
• Running Machinery
•The core of HSTs
• Loading, directing, suspension, traction and braking etc.
Keys
• Anti-roll movement
• Derailment safety
• Structural strength and reliability
Key technologies --
Bogies
Yaw damper
Nonlinear critical speed >550 km/h
• Improving box positioning stiffness according to line
Postioning Stiffness
conditions
• Selecting yaw damper parameters, and ensuring redundancy
• Determining the maintenance cycle to ensure a good equivalent
equivalent conicity
conicity
Wheel/rail surface
Matching
Key technologies --
Bodies
Structure characteristics
• Thin-walled cylindrical aluminum alloy welding structure • Drum wide body (3.3m), Large sections(11.2m2)
• Thin (1.5mm) and long (25m) profiles
• Overall carrying, hanging equipment to the base plate Keys z Structure strength z Modal designing z Vibration and noise reducing z drag reducing
气动
作用
Key technologies --
Bodies
Aluminum alloy