On the evening of February 4
The opening ceremony of the Beijing Winter Olympics was held
Crystal clear "ice and snow five rings"
Carved out of the ice cube
This scene stunned countless viewers
Behind this stunning debut
It is the result of the perfect fusion of art and technology
The opening ceremony raised the Olympic rings
It is 19 meters long and 8.75 meters high
It is only 35 cm thick
It relies on the VIA system over the nest
In 43 seconds, it rose steadily to 13 meters high
Suspended in mid-air
Eventually, it slowly sank under the stage
The swing amplitude does not exceed 7.5 cm when falling
The lifting accuracy is controlled in the millimeter level
Chief Engineer of the Fifteen Winter Olympic Projects of the First Aerospace Academy
He Guanjie said:
"To exaggerate,
The difficulty of this operation is like
Use two lines to put a blank piece of paper
Smoothly lift and put it down. ”
(Chain of Command Live)
Consider the load-bearing capacity of the WIA system
The five rings should constantly "reduce weight" to reduce the load
But after replacing the lightweight material
Its wind resistance will decrease
New materials must also have sufficient strength
Ensure that there is no deformation in the suspension
furthermore
The director team has visual effects on the five rings
Extremely high demands are also placed
Refer to methods of aerospace structural design
Iterates over and over again
The drawings of the "Ice Five Rings" were finalized:
It weighs a total of about 3 tons
The bones are made of aluminum trusses
Tough and lightweight
Inside is a 360-degree LED display with no dead angles
It can realize the display of any screen
Set aside for the director team
Maximum creative space
Outermost diffuser plate
Made a "beauty" for the display
Ensure that the visual effect is clear and soft