"This is an electric engine, which is currently the most advanced in the country. ”

Sima Lili watched the installation of the engine and introduced the situation of the engine to Lin Feng.

In fact, the electric engine is an electric motor to put it bluntly, but the power factor is much higher than that of the motor, in other words, it is energy-saving.

Today's EMU has already changed the traditional mode of the train running fast and relying on the headband, generally using a combination of 4 powered cars and 4 non-powered cars, so it is called "group".

An 8-car EMU can reach 5,500 kilowatts, which is equivalent to the total power of 55 cars with a displacement of 1.6.

Therefore, when we take an 8-car EMU, we will consume 1.53 kWh of electricity per second, which is enough for the headlights in your living room for more than ten hours.

The electric engine was also not very big and was quickly put in place, and then there was a whole bunch of things like the transmission, transmission, brakes, etc., which were concentrated at the bottom of the train.

Once all this hardware is in place, it's the control system.

Lin Feng didn't understand much at this point, anyway, looking at the big bundle of thin threads, he felt that people with dense phobia would definitely go crazy.

It took several hours to install and debug the control system, and with these times, Lin Feng went to the workshop to continue the production track, then had lunch, and found a place to take a nap.

Until five o'clock in the afternoon, Sima Lili asked someone to call him, saying that he could test the car.

This is definitely the fastest ever from start to commission.

He came to the scene with great interest and saw that in front of the console, various symbols were flashing on a 14-inch LCD screen.

"Let's get started. Sima Lili's voice was a little hoarse, and it was very calm. It's like this isn't working on a world-class locomotive at all, it's about making a tractor.

"All parts are normal and can be activated. ”

With the order of the commander-in-chief of the scene, the electric engine, which was still exposed to the air, made a hissing sound, and only the frame of the locomotive slowly moved forward.

It wasn't until after entering the official orbit that Lin Feng and Sima Lili came to a large surveillance screen together.

"The speed is 90, all parts are normal!

"Speed 190, normal!

"Speed 270, normal!"

"Speed 350, normal!"

"Speed 500, normal! Start slowing down and stopping!"

Lin Fengzheng enjoyed watching it, and the tunnel came to an end.

10 kilometers, less than two minutes, the maximum speed is only 500 kilometers per hour, a long way from the planned 2000 kilometers.

Sima Lili's face was calm, and all kinds of data were made into reports and submitted to her.

After reading the report, she discussed with a few people who looked like engineers for a while, and then left the scene with Lin Feng.

"How's that?" Lin Feng asked.

"At first glance, it's ideal, but the fastest speed is only 500 km/h, which we achieved a few years ago. Now we want to lengthen the tunnel, and in order not to waste it, we decided to directly open up the intercity passage from Rongcheng to Fucheng. It will take two or three days, so let's take a look at the new transmission and braking structure. ”

Lin Feng thought that he could take a few days off, but this wish was instantly disappointed.

When the two came to the manufacturing workshop, Sima Lili had already asked people to move the computer over and call up some old drawings to revise and modify on it.

Lin Feng sat in a comfortable swivel chair, watching her fiddling with drawings in dazzle, and after her simulation was over, she finally printed out a stack of drawings and handed them to Lin Feng

"With your material, any design has become so much easier. Sima Lili sighed, "In the past, to make a reducer, there are too many factors to consider, from material selection to processing, production, testing, it may take a month to go down the process, if not, you have to start all over again, repeat the process over and over again." ”

This is research and development, and Lin Feng also knows the general procedure in the middle.

From the proposal of the design concept to the release of the final product, there are too many things for an industrial product, which involve various industries. From machining to steel smelting, it is absolutely impossible to rely on any one person.

But now, as Lily Sima said, with supramolecular polymeric materials, everything has become so simple.

Lin Feng quickly processed a reducer, and after Sima Lili's optimization, this reducer was more than half smaller than the previous one, but its strength and durability increased hundreds of times.

After a series of improvements, 7 more cars were produced and assembled, and it was already 5 days later. A total of 130 kilometers of tunnels from Rongcheng to Fucheng have been completed, and temporary lines have been erected.

Eight carriages are connected together, the various lines are connected, and a huge monitoring screen automatically switches signal sources for real-time monitoring of the trains.

As the saying goes, everything is ready only to owe the east wind, the atmosphere at the scene is very solemn, and hundreds of technicians keep coming to the sound of the report of the completion of the test.

"Let's get started. Sima Lili said.

"Everything is working fine, trial 1 can be started. ”

I haven't seen this new locomotive for a few days, and it already has a temporary name, which is not very beautiful, and it is estimated that it was taken by Sima Lili.

Lin Feng looked at the numbers that kept tumbling and jumping on the monitoring screen, and it only took 10 seconds for the speed of the train to rise from 0 to 500 km/h.

Everyone has a strong sense of acceleration when taking the subway, but the EMU does not, and that is because the EMU accelerates for a long time.

Going from 0 to 500 in 10 seconds like this can only happen in a lab.

"Speed 500, everything is normal, keep speeding up!"

The commander-in-chief's voice began to get a little excited, and now Test No. 1 has surpassed its previous results.

"Speed 750, everything is normal, keep picking up speed!"

"Speed 1000, everything is normal, keep speeding up!"

More than 1,000 kilometers later, the commander-in-chief's voice became more and more high-pitched, and Lin Feng's heart also lifted upward.

Although for him, who owns the Universe Mall, this level of scientific and technological achievements is difficult to get into the eyes of the law, it is also quite pleasant to be able to witness the historical record being broken.

"Speed 1200, voltage drop!

Something went wrong?

Before the commander-in-chief's order was executed, a bright spark burst out on the surveillance screen, which was the connection point between the sliding power line and the train, and after a puff of green smoke, it could be seen that the sliding wire had been burned off.

"Go over and check it out now. ”

Sima Lili and a few engineers got together again to discuss and study the data. It seems that in their opinion, the fault that made Lin Feng's heart beat just now was as common as a common thing.

He felt a little frightened, he thought that he could see a high-speed train with a speed of 2,000 kilometers per hour today, but it turned out that it was not good when it reached 1,200.

"Power supply is the biggest problem," Sima Lili sat down with him, "There is no good solution yet. ”

After her superficial explanation, Lin Feng also roughly understood.

Because the train is so fast, the contact point between the power line and the train is prone to small gaps due to subtle vibrations.

Even if it is 1 micron, when the train accelerates and generates a huge current, it can cause an electric arc and cause an accident.

If this problem is not solved, electric ultra-high-speed trains can only be a plan. 10