Technology Bigshot

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

Flying birds are 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, and the main damage of "bird strike" does not come from the flying birds themselves, but from the super high speed of the artificial aircraft itself.

For example, if an aircraft is flying in the air at a speed of 128 m/s, if the aircraft collides with a 500-gram bird, according to the kinetic energy theorem, energy of about 4,000 joules will be produced, and these energies will be absorbed almost instantly. If absorbed by the aircraft, the parts in contact with the body will be damaged to varying degrees, which often means the disaster of aircraft crash and death.

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

The track 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 he didn't show too much surprise. This kind of low-level question is obviously within the scope of the other party's consideration, and he just needs to wait for the answer to be revealed.

However, everyone has also guessed, and they can roughly guess based on the fragments 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 said at the same time: "The anti-gravity technology is the core technology of the floating high-speed rail, and other corresponding supporting technologies are also the key. The birth of a new transportation system requires a long process. And the accumulation of technology in many fields.”

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

"From another point of view, 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, but the existing mature technologies are applied in There will still be further upgrades on the floating high-speed rail, which is in line with 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 then projected a honeycomb-shaped cross-section of the pipeline, presenting an equihexagonal shape. This composite transportation pipeline consists of a total of seven transportation ports of equal size. They are spaced more than 10 meters apart and fixed with trusses.

It is not difficult to understand that if the clinging is too dense, if one of the pipelines fails and affects other intact pipelines, it will be a big loss.

Good guy!

Everyone present was surprised when they saw this data, especially the representatives sent by various countries. This composite transportation pipeline has seven transportation ports of the same size. Empty trains operate at the same time, and the carrying capacity of a train is 50,000 tons, multiplied by seven, that is a full 300,000 tons of transportation capacity, which is no more than that of a large ocean-going cruise ship.

And this guy's speed can be faster than air transportation.

Many people also have doubts in their hearts. The honeycomb composite vacuum transportation pipeline sounds a bit tall, but that’s it, it’s just adding a few more transportation pipelines. The cost will definitely be outrageously high, right?

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

"The same core concept is suspension, and a special peer environment is set up to reduce contact friction and air friction. The difference is mainly reflected in two points: First, if it is converted into electric energy for comparison, then the floating high-speed rail The transportation capacity of kilowatt-hours is 150 times that of the super high-speed rail; second, the dependence of the floating high-speed rail on hardware is much smaller than that of the advanced high-speed rail. We build a honeycomb vacuum transportation pipeline with seven transportation ports, just for a vacuum environment. That’s all, so the actual investment cost is exactly the same as building a vacuum transportation pipeline for capsules.”

When Ren Hong said this, there was another low-pitched discussion in the field. He obviously didn't believe it. He smiled and explained: "The floating train is based on anti-gravity technology. , so our honeycomb composite vacuum pipeline only needs to consider one point: that is to maintain a vacuum environment, and it is 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 pipeline to less than 1000 Pa, and an atmospheric pressure is equal to 101325 Pa, which is equivalent to removing the honeycomb pipeline airtight cabin. More than 99% of the air in the air."

"Anti-gravity is also a big energy consumer, so how to get power for the anti-gravity device on the floating train?" Ren Hong asked himself and answered: "Nuclear power, I have a rough data here, one nuclear fuel filling of the floating train can To maintain the basic operation for 15 years, except for irresistible factors, it can guarantee to meet the demand for 15 years, and the nuclear fuel replenishment will not be carried out until 15 years later.”

Nuclear energy is undoubtedly the most efficient clean energy in the world today, and it is simply configured for these large energy consumers. Large-scale power equipment, such as aircraft carriers, are 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 asked the audience again.

"Of course, we can use anti-gravity drive, which is theoretically feasible." Ren Hong said, but quickly added: "The cost is too high, to what extent? Driving the train with anti-gravity will mean That means we have a nuclear refueling resupply every 18 months on average, and mind you, even with nuclear power, that's clearly not advisable."

"The biggest purpose of the anti-gravity device is to let the car levitate. Using this technology as the core drive can't afford to hurt, unless the ticket price is set at $800, but I think customers will be happy to say no. "

A burst of laughter resounded.

"Kinetic energy!" Ren Hongyan said the word succinctly with a restrained smile, and then added: "Both the floating train and the capsule train travel in a mirror environment, both in a vacuum tube, and mainly rely on inertial kinetic energy to drive forward. But There is a difference in how to provide the source of kinetic energy for the train. The capsule train uses a linear motor to accelerate the carrying cabin, and finally relies on inertia to move forward magnetically in a vacuum pipeline."

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

In this technology, the Chinese and Americans are at the forefront of the world.

Ren Hong said with a smile: "When it comes to electromagnetic catapult technology, I think the participants here may immediately think of the electromagnetic catapult used for carrier aircraft take-off on the aircraft carrier. Electromagnetic catapult technology can be said to be the key technology of the aircraft carrier."

"Our company's CMSX space base has an arc-shaped space-to-air orbit launch tower, and now we need to build several 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. nation."

"But the electromagnetic catapult technology to be mentioned here is not to drive a carrier-based aircraft or air-space transport aircraft of a dozen tons or tens of tons. The equipment to be driven is a super large volume of tens of thousands of tons!"

Ren Hong said with a smile: "If the electromagnetic catapult or steam catapult on the aircraft carrier is to drive the aircraft, then 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 make it reach a speed of Subsonic."

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