Wheel/Rail Relationship and Maintenance Research Center

The Research Center for Wheel/Rail Relationship and Maintenance was led by Professor Zhai Wanming, an academician of the Chinese Academy of Sciences. Academician Zhai Wanming has been engaged in the research of dynamics and vibration of rail transit engineering for a long time, and has opened up a new field of railway system dynamics research.

Relying on the team's scientific research advantages in the direction of rail transit and the accumulation of scientific research results over the years, the research center has carried out scientific research, achievement transformation, product service of railway and urban rail transit preventive maintenance theory and maintenance equipment, theoretical research on the operation safety of heavy-duty trains, and research on fatigue and life evaluation of rail transit vehicle materials. State Council special allowance expert 2, doctor 3 people.
 

 

National Award Certificate

                                                                                         Innovation Team Certificate                                                                                    Tianjin Science and Technology Progress Award

 

Core Technology

■Study on the theory and practice of heavy haul railway operation safety:

Based on the simulation calculation of vehicle-track coupling dynamics and the safety of heavy-haul train operation, the safety architecture of heavy-haul train operation is constructed.

Research on the service reliability of key components of rail vehicles (wheels, frames and car bodies, etc.): Carry out research on material fatigue performance and life evaluation for key components of vehicles such as wheels, axles, bogie frames, etc., to form an integrated evaluation of material tissue-performance-life.

■%Vehicle-Track Coupling Dynamics Theory

■%Wheel-rail force sensing technology: wheel-rail force ground sensing system, force-measuring wheelset

Research on wheel/rail force measurement methods, data acquisition and analysis techniques, and establish a data center to guide related scientific research activities.

 

On-line measurement of wheel-rail force

data acquisition and analysis

 

■ Preventive maintenance

In view of the high efficiency and low cost of wheel rail defect detection, based on the wheel rail force, the real-time dynamic test of wheel rail force is carried out, and the database and expert system are constructed to realize the health management of the wheel life cycle.

 

　　　　

 

■ New energy high-speed rail

Carry out the analysis and optimization of the dynamic performance of suspended monorail vehicle-track coupling, and study the technical conditions and standards for the operation and maintenance of suspended monorail vehicles and tracks.

 

 

■ Intelligent driving

Based on the theoretical research basis, actively promote the research of intelligent driving of rail transit equipment.

■ Model handling, evaluation and intelligent driving technology for heavy haul trains

■ High-speed online monitoring intelligent pantograph current receiving technology, high-speed, magnetic levitation rail current receiving technology, etc.

■ Bogie technology and CAE analysis of key parts

 

industrialization process

The first preventive maintenance demonstration line has been built in the urban rail transit system to guide wheel maintenance, extend wheel repair mileage and reduce wheel-rail maintenance costs.

Carry out heavy-duty train model operation, guidance and early warning, ground comprehensive analysis and evaluation practice, and promote the application of heavy-duty train intelligent driving technology.

To carry out the research and practice of maglev train current receiver, to carry out high-speed online monitoring intelligent pantograph current technology and high-speed boot rail current technology research, to promote the rail transit traction power supply technology.

Carry out structural strength analysis and fatigue reliability analysis of key components such as rail vehicle bodies, frames, wheels, axles, etc., and provide the best solutions for structural optimization and product fatigue life extension.

 

 

Contact Information

Address: Building 5, Kechuang Huigu Park, East Section of Hongshun Road, Huaming High-tech Zone, Dongli District

Zip Code: 300300

Contact: Fan Zhenhai 13691283899

Mobile Phone: 13691283899

E-mail:fanzh@tsinghua-tj.org