Siheyuan: My Northeastern Farmhouse

Chapter 196 The Great Wisdom
  Secretary Huang transferred Qian Weichang as soon as he arrived at Shijingshan Iron and Steel Plant, and asked Qian Weichang and Wu Zhonghua to continue to help research the technological upgrades of the rolling mill and single-cylinder diesel engine.

Gu Weijun originally thought that his career as a disciple of the Qian family was over. Unexpectedly, the fat old man still asked him to come over every once in a while to continue teaching him.

On the fifth day of February, Saturday, the night before the fat old man went to Shijingshan, the fat old man gave Gu Weijun another thesis topic based on the feedback from the diesel engine operation test: On the strength and stiffness of the diesel engine cylinder and the alloy performance of the valve index!

Gu Weijun was dumbfounded again, no! I just got started with power machinery, and you taught me about materials mechanics and aerodynamics? Besides, didn't you go to Shijingshan Iron and Steel Plant? It's a long way and it's not convenient for me!
  When Gu Weijun raised this topic to the fat old man, the fat old man just replied lightly, "Isn't it all physics and mathematics? Besides, don't you have a car?"

Um? Gu Weijun looks suspicious? "How do you know I drive?"

The fat old man ignored it at all and waved his hand impatiently, signaling him to get out of here!

Gu Weijun didn't know why the fat old man targeted him? At first, it can be explained by the fact that the fat old man inspired research enthusiasm after arriving at the steel rolling mill, but now the teaching content obviously goes beyond the scope of single-cylinder diesel engines! Is the fat old man such a good teacher?

My Saturday sex life.
  If this continues, I'm going to get pimples on my handsome face.
  I want to plow the fields! ah! ah!
  When Gu Weijun left the guest house, he just yelled to vent his anger!

After venting his anger, Gu Weijun suddenly had an idea! Did the fat old man know his identity when they first met, and was he just pretending to be stupid? Then take advantage of the opportunity when you come to ask for advice, and give yourself a small start! Damn it! It's very possible! This fat old man is so bad, he has been pretending to be stupid for so long! What a fool!

After the fat old man waited for Gu Weijun to leave, he heard the shouting downstairs, and the corners of his mouth rose inexplicably. Before coming to the steel rolling mill, President Jiang Nanxiang and Secretary Huang Jukun told themselves that it was a student named Gu Weijun who strongly requested that he be transferred from Tsinghua to the steel rolling mill, so that he could escape from the critical environment of Tsinghua and regain his Allow yourself to continue working on mechanics of materials and aerodynamics!
  Silly boy, why else would I take advantage of your opportunity to ask about the single-cylinder diesel engine when you first came to your door to draw a drawing and give you a lecture? You know, at Tsinghua University and the Institute of Mechanics, my students are all graduate students!

However, you didn't disappoint me either! I originally thought that it would take at least a month for you to give me a satisfactory paper for the first time I gave you a paper topic! Unexpectedly, your boy wrote the paper in just one week, and I was very satisfied!
  Especially in mathematics, I’m pretty good at advanced mathematics!

After that, I increased the difficulty every week, and you guys can surprise me every time! God treats me well! He gave me a good seedling who can inherit my learning and excel in his own work! What a blessing!

how? Do you think you can give up when I get to Shijingshan Steel Plant and feel it’s far away? Beautiful thought! If you don’t tap your potential, will I still be a successful educator?

So since February 2th, Gu Weijun has been running back and forth between Tsinghua University and Shijingshan University. There is no way! The assignments the fat old man left for Gu Weijun always gave him a headache. Why did he feel like I was developing this 8-horsepower single-cylinder diesel engine?

Fortunately, Gu Weijun also had Li Youshan and Li Jixiang to consult, a director of the Department of Mechanical Engineering and a director of the Department of Metallurgy. During the month of studying with the fat old man, Gu Weijun's improvement was very obvious. His knowledge of diesel engine technology could be said to have gone from rough to proficient! And it’s not limited to single-cylinder diesel engines!
  The fat old man’s knowledge has even extended to fuel engines!
  Although the structure of a single-cylinder diesel engine is relatively simple, it contains a lot of technology, especially to achieve a power of 35 horsepower, the strength and stiffness of the diesel engine cylinder, the fatigue resistance of the crankshaft, the sealing of valves and bolts, and the load of springs Capacity and fatigue life and more! They are all difficulties to be overcome!

As the operation test and fatigue test process came to an end, although the 35-horsepower single-cylinder diesel engine could still operate normally, its power had obviously weakened. By February 2, it had been a month since the operation and fatigue test. Wu Zhonghua was very disappointed after taking the students apart the cylinder block of the diesel engine! Because they found that the wear of the inner wall of the cylinder and the deformation of the drive shaft exceeded expectations. At the same time, the valves and other parts could not maintain sealing for a long time, and the fatigue life of the springs declined particularly quickly!
  After discussion, there are currently two solutions. One is to reduce the power of the diesel engine, that is, reduce the horsepower; the other is to increase the material strength of key parts such as the cylinder block, valves, and springs. Obviously, the first solution is relatively Simple and can be put into application as quickly as possible!
  So the fat old man and Wu Zhonghua revised the new diesel engine drawings based on the existing material properties. Now the second-generation diesel test engine has been reduced to 18 horsepower. However, after calculation, it can also achieve the performance of at least 8 tons of towing. It can meet the needs of short-distance transportation of steel plants, rural areas and agriculture!
  Moreover, Wu Zhonghua and the fat old man also specially designed an additional 12-horsepower diesel engine, which can pull up to 5 stews. They are currently undergoing simultaneous experiments.

But the research and development of high-power single-cylinder diesel engines cannot stop! The goal of 35 horsepower must be achieved! People in this era have this spirit of not being afraid of difficulties, not afraid of challenges, and bravely climbing to the top!
  Although the power of the tested diesel engine has met expectations in the design, the power has even successfully reached 38 horsepower, and the maximum towing can reach more than 10 tons, the materials such as the cylinder block and main bearing did not pass the conventional mechanical properties and fatigue performance tests. , which led to the failure of this test machine!
  So the fat old man also started to calculate the performance of each component of the 35-horsepower diesel engine. What kind of performance does each component need to achieve to meet the design needs?
  How can these materials perform as expected? The specific alloy composition of the material, the casting and machining process, the curvature of the engine connecting rod, and more!
  Why did Gu Weijun laugh at himself that he developed this 35-horsepower diesel engine?

Because all these calculations were done by him!
  After the fat old man was transferred to Shijingshan Steel Plant, he also knew that it was the winter vacation of Tsinghua University, so he beat Gu Weijun in all aspects not only every Saturday night.

Especially after the first-generation testing machine of the single-cylinder diesel engine completed the fatigue test and motion test, various problems that needed to be solved were discovered, all of which required a lot of calculations!
  The fat old man threw all the theoretical parameters involved in the three diesel engines to Gu Weijun in stages and asked him to perform calculations. It can be said that everything from material mechanics to aerodynamics was involved.
  There are policies and measures to counter!

Such a large amount of calculations would exhaust Gu Weijun to death if he used an abacus!
  Fortunately, Gu Weijun came from a later generation and was not proficient in anything else, but his level of laziness could be said to have reached its ceiling!

In the space, there is a laptop and mobile phone in the living room of the east room of our big tile-roofed house! Although I can’t access the Internet, this one deserves a negative review! But the computing speed of both computers and mobile phones exceeds that of all computers in the world, and they are still far ahead!

Absolutely far ahead!

Isn't it just a calculation? Small case! Who doesn’t have WPS installed on their computer? Especially since we are still members! The engineering calculation formulas that come with WPS can not only calculate material strength and fluid mechanics, but also perform structural calculations and circuit analysis!

Give Mr. Lei a thumbs up!

The only pity is that I am not an engineer and I don’t have AotuCAD installed on my computer, otherwise it would be easier to draw drawings!

It's a pity that Gu Weijun didn't dare to hand over this computer. On the one hand, he was worried about being locked up in a dark room for dissection after being discovered. On the other hand, the wind was about to blow, so he was worried that it would not be used effectively and that it would be damaged when smashed!

There is no place to repair it in this day and age!

Otherwise, our country's subsequent research and development of hydrogen bombs and nuclear submarines will definitely take at least 2 years!
  However, I am also currently using computers to conduct scientific calculations. This can be regarded as a contribution to the country's scientific research, right?
  So laziness is the ladder of human progress!

(End of this chapter)