Our school's wheel rail center project achieved excellent results in the rematch of Tsinghua Station in China Urban Rail Transit Science and Technology Innovation and Entrepreneurship Competition

From November 3rd to 4th, the Wheel-Rail Relationship and Maintenance Research Center of the High-end Equipment Research Institute of Tsinghua University participated in the second round of the first China Urban Rail Transit Technology Innovation and Entrepreneurship Competition Shenzhen Tsinghua Station. The two projects of "Wheel Dynamic Real-time Monitoring System Research" and "Rail Beautician" respectively won the second prize in the basic theory research category and the third prize in the promotion application category, among them, the "Research on Wheel Dynamic Real-time Monitoring System" project will represent Tsinghua Station to participate in the national finals in Beijing in December.

Ding Minghui, the representative of the wheel and rail center, explained the participating items.

China's high-speed rail and urban rail transit have achieved rapid development in recent years, and operational safety and comfort have been increasingly valued. The wheel-rail relationship problems caused by defects such as the radial deviation of the wheel tread will damage the vehicle track structure, cause vibration and noise, and affect the safety of operation. The research project of wheel dynamic real-time monitoring system in the wheel-rail center is based on academician Zhai Wanming's vehicle-track coupling dynamics theory system, railway large system dynamics theory and high-speed train system dynamics theory. Through the developed real-time detection system of wheel dynamic characteristics, the wheel-rail force between the wheel and the track of the vehicle passing through the test track is accurately measured in real time, and the wheel state is identified under the running state of the vehicle, identification and early warning of possible faults can effectively improve maintenance efficiency, ensure operational safety, and improve the operation and maintenance status of rail transit wheels. Through the research and promotion of this project, the wheel mileage of high-speed trains can be increased by at least 25%, resulting in good economic benefits.

This competition is guided by the China Association for Science and Technology, the High-tech Research and Development Center of the Ministry of Science and Technology, the China Civil Engineering Society, and the China Science and Technology Industrialization Promotion Association. It is organized by Beijing Urban Construction Design and Development Group Co., Ltd., Beijing Jiaotong University, Tsinghua University, Tongji University, Southwest Jiaotong University and other units. The competition has four sub-competition areas: North China, East China, South China, and West.

The Tsinghua Station rematch was held at Tsinghua Shenzhen Graduate School on the 4th, and the rematch award ceremony was held that night. Ji Shishan, Dean of the Research Institute of Tsinghua University in Shenzhen, Jian Lian, Deputy General Manager of Shenzhen Metro Group, Feng Aijun, Deputy Chief Engineer of Beijing Urban Construction Design and Development Group, Wang Xiaohao, Deputy Dean of Shenzhen Graduate School of Tsinghua University, and other leading guests attended the award ceremony and presented awards to the winners.

Ji Shishan, President of Shenzhen Tsinghua Research Institute, delivered a speech

Group photo of participants

Report by the Research Center for Wheel-Rail Relations and Maintenance/Cui Diqiang and Lu Yajin