Significant progress has been made in the construction of the 1,500 km/h "super high-speed railway"

Rail Transit Exhibition News A few days ago, the polymorphic coupling rail transit dynamic model test platform project of Southwest Jiaotong University ushered in important progress: all the vacuum pipelines were erected, and the first phase of the linear motor 60-meter test line was successfully completed. The Fourth Railway Institute of the project is responsible for the design, and the subordinate China Railway Maglev carries out the general contracting management of the project on behalf of China Railway Construction.

The completion of the vacuum pipeline erection marks the successful verification of key technologies such as precision control network construction technology and large-displacement slip support installation technology.

The successful conclusion of the first phase of the 60-meter test line of the linear motor verified the key parameters and feasibility of the traction and braking system, and laid a solid foundation for the subsequent production scheduling of the stator module.

Architectural renderings of polymorphic coupling rail transit dynamic model test platform

Schematic diagram of the dynamic model test platform of polymorphic coupled rail transit

The polymorphic coupling rail transit dynamic model test platform is a pilot project approved by Southwest Jiaotong University for the construction of a transportation power, and is also one of the first six comprehensive national science center support projects in Sichuan Province, and an important support for the strategy of Chengdu-Chongqing Economic Circle. As the first large-scale scientific research installation project in Sichuan Province, its construction is in line with the standards of Chengdu's landmark buildings and business card projects.

The platform plans to build an elevated ultra-high-speed vacuum pipeline traffic test line with a length of 1,620 meters, an inner diameter of 3 meters, an air pressure in the pipeline that is continuously adjustable within the range of 0.005 -1.0 standard atmospheric pressure, and a theoretical maximum speed of 1,500 km/h.

Its core goal is to systematically overcome major basic scientific problems and core key technologies such as multi-scale models, continuously varying low-pressure states, magnet-rail (wheel-rail) relationship and fluid-structure interaction relationship of high-speed and ultra-high-speed rail transit under various rail modes.

After the completion of the project, it will become the world's top comprehensive research and test platform in the field of ultra-high-speed rail transit, which will not only provide an ultra-high-speed and low-pressure test environment for the basic scientific problems and common key technologies of vacuum pipeline ultra-high-speed rail transit, as well as high-power track booster technology and aircraft dynamic model aerodynamic experiments, but also comprehensively promote and lead the development of rail transit science and technology in China and even the world, achieve the goals of higher speed, safer, more economical, more environmentally friendly and more comfortable, and strongly support the implementation of the strategy of becoming a transportation power. At the same time, it will drive the vigorous development of related industries such as the R&D and application of high-tech materials for rail transit, the manufacturing of major equipment such as maglev trains and high-power drive technology, and the design and construction of maglev transportation engineering and system integration.

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