Technology Bigshot

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There is a professional term in the aviation field called "bird strike", which means that a bird hits a human aircraft flying in the air.

Asuka is a deadly threat to aerial vehicles, and it is common sense that everyone knows. Flying birds are generally small in size and light in weight. The main damage of "bird strike" is not from the flying bird itself, but from the super-high speed of the artificial aircraft itself.

For example, if an aircraft flies in the air at a speed of 128 meters per second, if the aircraft collides with a 500g bird, according to the kinetic energy theorem, it will produce about 4000 joules of energy, and this energy is almost instantly destroyed. When absorbed by the aircraft, the parts in contact with the aircraft body will be damaged to varying degrees, which often means the disaster of aircraft destruction.

The speed of the floating high-speed rail has reached an astonishing "subsonic" level of more than 1,200 kilometers, and the destructive power of it is unimaginable. It is not uncommon for birds to hit aircraft.

The orbit of the floating high-speed rail is set at a low altitude of several hundred meters, and the hazards of bird strikes have to be considered. You must know that even in the ocean, there are a large number of seabirds.

The person who discovered the small details was indeed surprised, but did not show too much surprise. This kind of low-level question is obviously within the scope of the other party's consideration, and only needs to wait for the answer to be announced.

However, everyone has guessed, and can also be roughly guessed based on the pieces of information they know now.

Not surprisingly, it should be a vacuum pipe!

I saw Ren Hong on the stage adjusting the mixed reality projection, and at the same time said: “Anti-gravity technology is certainly the core technology of floating high-speed rail, and other corresponding supporting technologies are also key. The birth of a new transportation system will take a long time. And technology accumulation in many fields."

"The American technology company ET3 has developed a'capsule train' plan based on the principle of vacuum pipeline transportation, and one of my partners, Mr. Elon Musk, has enriched this concept and proposed the concept of a'super high-speed rail'. Contributed more technical and design details."

"From another perspective, the floating high-speed rail is actually a luxurious upgraded version of the'super high-speed rail.' Many key technologies applied to the super high-speed rail will be applied to the floating high-speed rail. However, the existing mature technology is used in The floating high-speed rail will still be further upgraded to meet the actual requirements."

"Compared to the single-pipe vacuum transportation pipeline currently operating in Dubai, the floating high-speed rail uses a composite honeycomb vacuum transportation pipeline."

The mixed reality image immediately projected a honeycomb-shaped cross-section of the pipeline, showing an equal hexagon. This composite transportation pipeline consists of a total of seven transportation ports, all of the same size. They are separated by more than 10 meters and fixed with trusses.

It's not difficult to understand that if the tight fitting is too dense, if one of the pipelines fails and spreads to the other pipelines that are intact, you will lose money.

Good guys!

Those present were not surprised to see this data, especially the representative responsible persons sent by various countries. This composite transportation pipeline has seven congruent-scale transportation ports. In other words, it can make seven floating ports. The empty trains operate at the same time, and the carrying capacity of a 50,000 tons is multiplied by seven, that is, the transportation capacity of a full 300,000 tons, which is nothing more than that of a large ocean-going cruise ship.

And the speed of this guy can be faster than air transportation.

Many people also have doubts. The honeycomb composite vacuum transportation pipeline sounds a bit tall, but it's just like that. It's just a few more transportation pipelines. This cost problem will definitely be heinous, right?

Ren Hong seemed to see the doubts in everyone's minds: "It is worth noting that the floating high-speed rail and the super high-speed rail look similar, but they are completely different concepts. The core technology of the super high-speed rail is still electromagnetic levitation technology, and the floating The core technology of the high-speed rail is anti-gravity."

"The same is based on the core concept of levitation, which is designed to reduce contact friction and air friction and set up a special peer environment. The differences are mainly reflected in two points: First, if it is converted into electrical energy for comparison, then the floating high-speed rail will The transportation capacity of kilowatt-hours is 150 times that of the super high-speed rail; second, the floating high-speed rail is too much less dependent on hardware than the high-level high-speed rail. We built a honeycomb vacuum transportation pipeline with seven transportation ports, just for a vacuum environment. That's it, so the actual investment cost is exactly the same as building a capsule vacuum transportation pipeline."

Ren Hong said here, there was another whispered discussion in the field, obviously a little disbelieving, smiled, and explained: "The floating train is based on anti-gravity technology, and the suspension is not the use of electromagnetic levitation systems. Therefore, our honeycomb composite vacuum pipeline only needs to consider one point: that is to maintain a vacuum environment and be safe and reliable."

"This means a large-scale cost reduction. Elon Musk’s technical team has been able to reduce the ultimate pressure of the vacuum pipe to within 1000 Pa, and an atmospheric pressure equals to 101325 Pa, which is equivalent to removing the honeycomb pipe seal cabin. More than 99% of the air in it."

"Anti-gravity is also a big energy consumer, so how should the anti-gravity device on the floating train get power?" Ren Hong asked himself: "Nuclear power, I have a rough data here. The floating train can be filled with nuclear fuel once. Maintaining basic operations for 15 years, except for irresistible factors, can guarantee that the demand will be met for 15 years, and nuclear fuel replenishment will be carried out after 15 years."

Nuclear energy is undoubtedly the most efficient clean energy in the world today. It is simply configured for these large energy consumers, like large power equipment, such as aircraft carriers, etc., all driven by nuclear power.

"Then the question is, the floating train does not have an electromagnetic levitation system, so what power drives the tens of thousands of tons of nuclear-powered floating train?" Ren Hong raised another question to the audience.

"Of course, we can use anti-gravity driving, which is theoretically feasible." Ren Hong said, but he quickly added: "The cost is too high, how high? Using anti-gravity driving trains will mean On average, we have to replenish nuclear fuel once every 18 months. Note that even for nuclear power, this is obviously undesirable."

"The biggest purpose of the anti-gravity device is to make the car levitate. Using this technology as the core drive is really not hurt unless the fare is set at $800, but I think customers will be happy to say no. "

A burst of laughter resounded.

"Kinetic energy!" Ren Hongyan, who was smiling and convergent, uttered the vocabulary concisely, and then added: "Floating trains and capsule trains are both running in a mirrored environment, both in a vacuum pipeline, and relying on inertial kinetic energy to drive forward. But. There is a difference between how to provide a source of kinetic energy for the train. The capsule train uses a linear motor to accelerate the cabin, and finally moves forward in a magnetic levitation by relying on inertia."

"The initial source of kinetic energy of the floating train is the electromagnetic catapult." Ren Hong replied. The United States is undoubtedly the leader in electromagnetic catapult technology in this field, and China has the ability to compete with the Americans in this field after starting in the field of electromagnetic catapult.

This technology ~www.readwn.com~ Chinese and Americans are at the forefront of the world.

Ren Hong smiled and said: "Speaking of electromagnetic ejection technology, I think the participants in this room may have thought of the electromagnetic catapult used for the take-off of carrier aircraft on aircraft carriers. Electromagnetic ejection technology can be said to be the key technology of aircraft carriers."

"Our company's CMSX space base has an arc-shaped aerospace orbital launch tower, and now we are building a few more, using electromagnetic ejection technology. There is no doubt that China and the United States are the most mature in the field of electromagnetic ejection country."

"But the electromagnetic catapult we are talking about here is not driving a carrier-based aircraft or aerospace transport aircraft of tens of tons or dozens of tons. The equipment to be driven is a huge volume of tens of thousands of tons!"

Ren Hong said with a smile: "If the electromagnetic catapult or steam catapult on an aircraft carrier drives the aircraft, what I want to say now is that it can directly drive a big guy with a volume comparable to a medium-sized aircraft carrier and let it reach speed. Subsonic speed."

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…(To be continued.) Mobile users, please browse and read for a better reading experience.