Source: State-owned Assets Xiaoxin
Xiaoxin Say
Looking back on our decade, a series of national heavy weapons and super projects created by central enterprises have engraved new coordinates of national development from different dimensions. On September 12, 's online theme publicity of "Our Ten Years @Coordinates China" was officially launched. With the continuous refreshing of China's span, China's accuracy, China's height, China's depth, China's strength and China's speed, it focuses on the representative major achievements in infrastructure construction and scientific and technological innovation since the 18th National Congress of the Communist Party of China, and demonstrates the courage, courage and wisdom of central enterprise builders to overcome difficulties and challenge the limits.
On July 20, 2021, the high-speed maglev transportation system with a total independent intellectual property rights was successfully launched. This is the fastest large-scale ground transportation tool that can be realized at present. Its launch marks that my country has mastered the complete set of high-speed maglev technology and engineering capabilities. What kind of unshakable belief is that allows us to constantly explore the peak of rail transit speed? How will our future change? What difficulties have we overcome in the process of continuous exploration? Today, Xiaoxin brings you the 26th issue of the theme film "Coordinate China" series, "China Speed" "Super Yi Juechen" .
Human pursuit of speed is endless
From human and animal power
to steam locomotives, internal combustion locomotives , electric locomotives, high-speed EMU
People's land travel speed has been rising from dozens of kilometers
Fuxing EMU 7
has achieved a speed of 350 kilometers per hour
Now, we are still exploring
ml0 The peak of rail transit speed
speed 600 kilometers per hour high-speed maglev comes in time
July 20, 2021
with completely independent intellectual property rights
600 kilometers per hour high-speed maglev transportation system successfully launched in Qingdao
PART1
Why should we develop high-speed maglev?
my country has a vast territory and a large population
Rapid economic development has driven
A large number of passenger flows, cargo flows and fast commuting needs
High-speed maglev height conforms to my country's national conditions
Speed 600 kilometers per hour High-speed maglev transportation system
can fill the gap in high-speed rail and space travel speed
Form a more reasonable, efficient, flexible and convenient multi-dimensional transportation architecture
Improve my country's comprehensive three-dimensional transportation network
A distance of about 2,000 kilometers
24 hours to achieve access to
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PART2
High-speed maglev?
High-speed maglev transportation system
strong transportation capacity, green and environmentally friendly
also has the characteristics of no contact with the track and no mechanical rotating parts
car body realizes the most ideal smoothing
can effectively reduce aerodynamic drag
6 traction motor and traction flow conversion system on the ground
0 Able to achieve high-power high-speed traction
maintenance and maintenance volume is very small
maintenance cost is low
good economy throughout the life cycle
high cost performance
faster vehicle speed
air resistance and noise
only design a suitable "head shape" The appearance of
can minimize resistance and energy consumption
reduce noise and vibration
high-speed maglev appearance design
comprehensively consider aesthetics, pneumatics, human-factor engineering and other factors
through more than 30 solutions to select
to finally determine the appearance solution that combines speed and aesthetics
The seats with high-speed maglev are wide and comfortable. The armrests are equipped with wireless charging and also have curved back screen.
supports audio and video entertainment and information query
. In addition, there are also a number of intelligent service functions such as electronic curtains and other intelligent service functions
PART3
Flying on the floor, what difficulties have we overcome?
speed 600 kilometers
What needs to be challenged is not just the threshold of speed level
High-speed maglev realizes
From the system integration into vehicles, traction power supply
Operation and control communications, line tracks and other systems
Major breakthroughs in complete engineering technology
Solve the aerodynamics, suspension guidance, vibration reduction and noise reduction
Under ultra-high speed and complex climate and geographical conditions
Aerodynamics, suspension guidance, vibration reduction and noise reduction
Traction braking, operation control, rescue and escape
A series of technical problems
Taking suspension guidance as an example
High-speed maglev rail suspension gap is only 10mm
How to make multiple marshal trains accurately suspend
And "flying on the ground" at a speed of 600 kilometers per hour
"floating stably" is a huge challenge
R&D team tried repeatedly from magnets, suspension devices to control algorithm
repeatedly optimized
for 5 years, and tested more than 4,000 times
Finally, the fully autonomous
high-precision and high-stability suspension guidance system
solved one of the core problems of the maglev system
" strong transportation country " grand blueprint
is slowly unfolding
This is a new journey belonging to China's rail transit industry
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