With a gust of wind, a column of red and white magnetic floating air -rail trains flashed across the test line of Xingguo Magnetic Floating Technology Engineering Project. When people responded, the train had long gone.
This mysterious air train is the first domestic magnetic floating air rail. According to reports, the train was jointly developed by Jiangxi University of Science and Technology and China Railway Science and Technology Group. It has now entered a critical stage of vehicle debugging. After the vehicle debugging is completed, it is expected to officially enter the opening of the traffic experiment in July 2022. What is the same as the traditional magnetic floating and empty rails, the magnetic floating air rail train is suspended by a suspension monorail, and the design speed is 80 kilometers per hour. Its biggest feature is that the first time the permanent magnet magnetic suspension technology is applied to the air rail vehicle. In terms of lines, the main length of the test line is an elevated line, which uses single -line design, and reserves double -line conditions and long -term operating conditions. In addition, the project adopts the EPC (design, procurement, construction integration) model, to give full play to the leading role of design in the entire project construction process. On May 31, Yang Bin, Secretary of the Party Committee of Jiangxi University of Technology, introduced in an interview with a reporter from the Science and Technology Daily that at present, the domestic air rail projects under construction all use wheeled air rail trains. Compared with traditional wheeled air rail trains, permanent magnet suspended trains do not need to use Relying on rubber wheels, permanent magnets and rails are reprimanded and the suspended state is kept at the middle line of the slot. The electromagnetic direction can achieve zero friction operation. It only requires motor drive to run.
The permanent magnetic suspended air rail has the characteristics of non -contact and suspended operation. The climbing ability is stronger, the turning radius is small, and the noise is also more energy -saving and environmentally friendly. Compared with the frequent magnetic floating interchange, the permanent magnetic suspended air rail has a static magnetic field. The characteristics of zero -power suspension have obvious advantages of magnetic pollution. These characteristics allow the permanent magnetic suspended air rails not only for routine environments such as cities and scenic spots, but also suitable for difficult regions such as riverside, high cold, desert, and can be supplemented with subways and light rails.
What technical difficulties have overcome the technical difficulties of China Railway Engineering Group, the chief technician of China Railway Technology Group, introduced that China is the third country after Germany and Japan to master the air rail technology. Interference, with independent road rights, a single trip volume is about half of the subway capacity, but the cost is only one -fifth of the subway.
Yang Bin introduced that the existing air rail trains currently use electrical drive tires walking in the rail beam, while Xingguo is a new type of suspended magnetic floating vehicle. The biggest feature is that the permanent magnet suspension technology is applied to an air rail vehicle.
This is also the first time in the world that has used permanent magnet suspension technology to manufacture in air rail vehicles.
The reporter learned that the permanent magnetic suspension air rail project is another new type of rail transit model that develops after the frequent magnetic suspension and superconducting magnetic suspension. my country has complete independent intellectual property rights.
The permanent magnet magnetic suspension technology was first proposed by Jiangxi University of Science and Technology in 2014. In 2020, it was led by the China Railway Sixth Hospital Group to promote the implementation of the technological achievements.
This is due to our cooperation with Jiangxi University of Science and Technology. We have the experience of making train and they have magnetic floating techniques.
Chen Yang, general manager of the Air Rail Institute of China Railway Science and Technology Group, said that Jiangxi University of Science and Technology has deeply cultivated the research of rare earth materials for many years. For the first time, the air rail uses rare earth materials to make permanent magnets and permanent magnets. Increase the life of the track.
It is reported that during the research and development process, Jiangxi Institute of Technology and China Railway Science and Technology Group successfully overcome technical problems such as suspension structure, guidance structure, linear motor traction drive, basic braking, etc., and successfully passed expert review.