“The vacuum tube super high-speed maglev train has a speed of 3,000 kilometers per hour, which is faster than the plane. It is equivalent to one hour from Beijing to Urumqi.â€
On the 13th, a science and technology news that “Southwest Jiaotong University developed a super maglev train with a speed of 3,000 kilometers per hour†attracted the attention of everyone. The reporter learned from Southwest Jiaotong University that the related technology of the vacuum tube super high-speed maglev train is still in the experimental stage, and has not begun to develop a vacuum superconducting maglev train ready to be put into use. Southwest Jiaotong University will hold a press conference in due course and invite the project team to introduce the progress of this technology to the public.
Southwest Jiaotong University built the world's first vacuum tube ultra-high-speed maglev train prototype test platform. During the test, the atmospheric pressure in the vacuum line was 10 times lower than the outside. In view of the experimental loop radius of only 6 meters, the test vehicle currently has a top speed of 50 kilometers per hour. Netizens pay attention to the speed of 3,000 kilometers per hour, which is the highest theoretical value that researchers can estimate and the experimental environment is expected to reach.
When the train reaches a speed of more than 400 kilometers per hour, more than 83% of the traction will be wasted to offset the air resistance. Researchers hope to reduce the resistance of air to maglev trains by building a vacuum environment.
Zhao Lin, an associate researcher at the State Key Laboratory of Superconductivity, Institute of Physics, Chinese Academy of Sciences, said that ultra-high-speed maglev trains are an important direction for future transportation. In the test phase, a small-scale vacuum pipeline experimental platform can be built to test the maglev train. To practice the application, you need to consider various factors. For example, ultra-high speed will put forward higher requirements on the material of the rails and the body itself, and the construction and maintenance costs of the long-distance vacuum pipelines are also large.
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