Original title: in the future, high-speed rail will speed more than 1000 km / h, and vacuum pipeline will be introduced for the first time in the world
Now, China's high-speed rail has run in the forefront of the world. The next generation of revolutionary technology research and development, Chinese scientists are not the slightest lax, Sichuan Chengdu engineers are preparing to use maglev train, to change the future of the world's rail transit.
Is the speed of high-speed rail expected to exceed 1000 km / h in the future?
There is no fastest, only faster. Cutting edge technology is to be faster than others.
This toy like model uses the principle that two opposite magnets of the same pole repel each other.
Dr. Deng Zigang, associate professor of State Key Laboratory of traction power, Southwest Jiaotong University, has built the world's first annular experimental line platform of vacuum pipeline ultra-high speed maglev train. When the load is 1 ton, the train can stably float above the ground for more than 20 mm and run at a speed of 50 km per hour. This technology can increase the train's theoretical speed to more than 1000 km / h.
Compared with western countries, China's maglev technology started 60 years later. In 1986, the first generation of researchers of Southwest Jiaotong University seized the opportunity to verify the feasibility of HTS Maglev train. However, it is not easy to realize from feasibility.
Professor Deng Zigang: the most difficult thing is to get the approval of others, because what you do is a cutting-edge thing, there are many doubts.
Independent innovation introduces vacuum pipeline for the first time in the world
The more serious challenge is the blank of technology and materials.
The circular platform with a total length of 45 meters is small but has all five internal organs. In the initial stage of construction, more than ten subsystems, such as high temperature superconducting materials, permanent magnet track, drive, etc., were involved. The laboratory and the manufacturer contacted one by one and put forward the production requirements for development.
In order to reduce the resistance, Deng's team also combined high-temperature superconducting magnetic levitation with vacuum pipe, which was the first time in the world at that time.
Time does not wait, international competition is fierce?
At present, many countries are stepping up the development of maglev train. Japan is developing the commercial operation line of low temperature superconducting maglev vehicle, and the United States is developing the super high speed railway of 1000 kilometers per hour. Deng Zigang said that technological innovation is changing with each passing day, and he is very anxious every day.
Professor Deng Zigang: this kind of international competition forces us to speed up our pace.