Open an aircraft carrier to fight against Japan

Lin Yuan's eyes widened when he heard Hou Zhengfeng's words, and asked, "What did you say? You can beat them without using rails?"

Hou Zhengfeng nodded with confidence, and Lin Yuan smiled helplessly: "Old Hou, are you kidding me? The game between you and Xindike is to build a railway by yourself, and then compete whose train runs faster, but now you say How can we win if we don’t lay railroad tracks and still win against them?”

Hou Zhengfeng smiled and said, "Don't worry, I will personally pull the train and run faster than that Xindike's train."

A few days later, it was the agreed day for the competition. Xindike brought the engineering team to the competition venue early. Xindike looked around and found no railroad tracks laid by Lin Yuan. , They will lose this competition."

After waiting for a while, Xindike saw Lin Yuan and Hou Zhengfeng coming to the venue calmly. Xindike asked with a smile: "Where is your railway? You don't even have a railway, so what's the test?"

Hou Zhengfeng laughed with a "hehe" and said, "There is nothing incomparable, come on, you guys run now."

Xindike nodded and said, "Then I will convince you to lose. Before the competition, I will show you our American railway." Then he took Lin Yuan and Hou Zhengfeng to the side of the railway, pointing Looking at the railway, he said: "We built a circular railway. We planned to compete with you and run fifty laps on it to see who took the least time. But since you don't have a railway, I will show you what is real. The railway is ready."

Xindike pointed to the railway in front of the two of them and said: "See? This section is a straight line, and the section ahead is a curved line. We Americans have built tens of thousands of miles of railways, which is hundreds of times that of your Chinese. All forms can be classified into these two types, straight lines and curved lines."

Xindike took the two of them a long way ahead, pointed to the curved railroad track in the distance and said, "Don't think it's easy to add a straight line to a curve, there's a lot of knowledge in it!" He squatted down and patted The railway at the foot said: "Look at this section of railway, it is located between the straight rail and the curved rail."

"When a train travels on a straight track and a curved track, the force characteristics are very different, so such a curve is needed as a buffer. We call this curve a 'transition curve', and its shape is a complicated one. Space curve, if you talk too much, you won’t understand.”

Xindike walked a little further, kicked the railway in front of him, and said, "Did you see that? The rail on this side is a bit higher than the rail on the other side. Do you know why?"

Hou Zhengfeng finally couldn't help it anymore, and said: "Because the train has a great centrifugal force when it turns, if the centrifugal force is fully borne by the rails, the rails are easy to be damaged, so the outer rails should be built higher, and the train tilted, and the gravity will Being able to produce a component in the direction of the centrifugal force can offset part of the centrifugal force, this height is called the superelevation of the railway, I said, can you stop showing off, where is your train, let’s start quickly.”

Xindike smiled disdainfully: "You can't wait to see our train, right? Well, I'll satisfy you now." After speaking, he led the two of them to a train parked on the railway. A train is composed of a locomotive and carriages. Generally, a locomotive can carry more than a dozen carriages, but this train has only one carriage.

Xindike brought Lin Yuan and Hou Zhengfeng to the car, and said with a smile: "This is a high-tech product of the United States of America, a track inspection vehicle. This vehicle can comprehensively measure the laying of the track, including whether it is laid straight or not? Are the two sides the same height? The super height can be detected by this car, and the sensors on the car can’t be manufactured in your dreams.”

Lin Yuan found it funny when he heard this, and thought to himself: "In our era, when China built high-speed railways, there were no advanced track inspection vehicles at the beginning, and they could only be purchased from abroad. It was Mr. Hou who led the research and development team and made our Your own track inspection car, and now you are here to make a fuss."

Hou Zhengfeng didn't speak, but nodded with a smile and said, "Okay, let's start, I'll time it for you."

Xindike smiled, and made a start gesture to the driver's cab in a grand manner. The inspection car immediately started, running on the rails, making a rhythmic "click click" sound. Listening to those sounds, Xindike was intoxicated. With his eyes closed, he waved his hands to beat the time and said, "Listen, what a wonderful music, and only the concert in Vienna's Golden Hall can match it."

Hou Zhengfeng asked: "Judging from the sound of the train moving, there are gaps between your rails, right? And each section of your rails is about 15 meters, right?"

Xindike smiled and said: "That's right, it seems that you still have some skills. All the railway tracks in the world are like this. Each section of railway track forms a long railway."

Hou Zhengfeng smiled and said, "You never thought of connecting all these gaps so that a seamless railway can be made."

"Seamless Railroad? What's the use?" Cindyk asked.

Hou Zhengfeng said: "I believe you also know that when a train passes through a gap, it will generate strong vibrations. The force generated by this vibration will cause great damage to both the train and the rails. Therefore, when there are gaps in the railway , the speed and load of the train are limited, if we weld the gaps, the speed and load of the train can be greatly increased."

Lin Yuan thought to himself: "Old Hou has finally shown his power. What he said is the most widely used seamless railway in modern times! The seamless railway will not appear until the 20s, and this Xindike must have never heard of it. "

Unexpectedly, Xindike smiled and said: "I don't know where you studied railway engineering, don't you know? Steel rails will expand with heat and contract with cold. When there are gaps, the expansion will not cause harm, but if there are no gaps, the rails will It will be swelled!"

Hou Zhengfeng smiled disdainfully, and said: "If the railway is built by our Chinese, there will be no swelling and cracking, do you believe it or not?"

Xindike shook his head contemptuously, turned around, and stopped talking to Hou Zhengfeng, but asked the staff in the inspection vehicle: "How is the track data measurement going?"

The staff replied: "The data is all normal."

Hou Zhengfeng suddenly asked: "How many laps have we run?"

Lin Yuan looked at the odometer and said, "It's been about twenty laps, what's the matter?"

Hou Zhengfeng yelled at Xindike: "Stop, stop quickly, let's get out of the car!"

Cindy asked, "Why did you get out of the car?"

Lin Yuan also asked Hou Zhengfeng in a low voice: "That's right, Mr. Hou, I'm still looking forward to your counterattack. Why do you want to get out of the car?"

Hou Zhengfeng said: "Stop the car quickly, if you don't stop I will jump out of the car."

Xindike stopped the car helplessly, Hou Zhengfeng said to him: "Grandson, keep running, if you can run fifty laps, you win!"

The train started again, Lin Yuan frowned and asked, "Old Hou, what kind of medicine are you selling in your gourd?"

Hou Zhengfeng chuckled and said, "Wait, they have to stop in a while!"

(The second update today is at eight o'clock sharp)