Yan Qiansheng said to Catherine: "Miss Catherine, the bad news is that there is no raw material blank. What we need to use is a very special titanium-aluminum alloy. It is very expensive and the quantity is very small. The warehouse does not agree to give us even the smallest
It’s a piece of alloy, and we have no way to apply for the factory to produce this alloy.”
"Here's the good news. I found a pretty good alloy steel. It's a little heavier but has pretty good strength."
[In view of the general environment, Catherine picked up a coat: "I'm going to see Dr. Yan."
"It's useless." Yan Qiansheng stopped for a moment: "Right now, as far as I know, there are also higher strength and higher numerical values in the warehouse of the Sky Research Institute. But they can't give it to us. We can mechanically research it.
The hospital and they have their own budgets."
Catherine thought for a while, then picked up the cell phone with the battery removed: "I'm looking for your factory director."
"No, the factory director never cares about this."
"I provide the money, and he provides the materials." Catherine has money, and she believes that one million U.S. dollars can buy enough raw materials.
Yan Qiansheng wanted to give some advice, and after thinking for a moment: "Miss Catherine, I personally think it is pointless to continue researching in this direction. We can only save 20% of fuel and increase power by 5% at most, but
The cost is too high, and the structure is very unstable and can easily break under high-intensity use."
"Don't listen, don't listen." Catherine was competing.
In other words, willful.
The call got through, but Catherine didn't say anything about the titanium-aluminum alloy.
"Bai, Gwen Reese wants to find a job with you. Although I feel that Jeff's head is abnormal, I still respect his idea. But I also want to remind you that Gwen Reese is a very dangerous person."
Bai Hao replied in a very serious tone: "Well, I respect Jeff's choice. I also accept your suggestion very sincerely. I think I need to seriously consider this matter. I agree in principle, but I will consider the specific arrangements.
one time."
When Catherine heard what Bai Hao said, her tone immediately changed, and her voice rose an octave: "Bai, I want a batch of titanium-aluminum alloys, raw materials for making high-strength gears. I'll pay you one million US dollars. I'll see you soon."
I heard that you have something in your Space Research Institute."
"Are you in your right mind? You're just building a rally car. It's made of titanium and aluminum alloy. Isn't it good to make steel?"
"I don't care, I don't care, I don't care." Catherine yelled: "How did I help you when you wanted to build a four-axle? I want this, I want to see that magical gearbox combination."
Bai Hao was amused: "Sure, sure, I'll make arrangements for you right away. But I can't break the rules. In this way, whoever is helping you will definitely not do it yourself. We all know your hands-on ability, which is theoretical."
level."
Catherine threw the phone to Yan Qiansheng.
Yan Qiansheng talked about a lot of technologies, but also said that this kind of design is completely meaningless to use in cars, the cost is high, and the efficiency of use is inappropriate. I just feel that this structure makes sense...
"Don't think so much, just think of it as playing with friends. You go get the drawings and I'll specially batch some raw materials for you. It's okay to mess around a little sometimes." Bai Hao's subtext is that Catherine spends her time on things like this.
, it’s better than other fooling around, at least the loss is controllable.
Yan Qiansheng expressed his understanding.
After all, the Haas Factory was very, very helpful to the start of the machinery research of the Ninth Factory.
After hanging up the call from Bai Hao, Yan Qiansheng went to the Sky Research Institute with a bundle of blueprints in his arms. Currently, only the Sky Research Institute has high-strength titanium-aluminum alloys.
Half an hour later.
Luo Qianli passed by and threw away half of Yan Qiansheng's drawings.
Twenty minutes later, Xiong Tianhua, who was also passing by, threw away 90% of Yan Qiansheng's remaining drawings.
There are only two left.
Yan Qiansheng looked confused.
Luo Qianshi spoke: "Xiaoyan, you major in mechanics. Let me tell you some basic knowledge."
"yes."
Luo Qianshi drew a simple diagram on the blackboard: "The principle of the turbojet is to heat the air in the afterburner, expand it and spray it backwards. The latter part is called the turbine. The high-temperature air sprayed here drives the blades.
Rotate, further increase the compression pressure, and finally spray out through the tail pipe."
Although Yan Qiansheng is not a major in this field, he understands the mechanical principles as soon as he hears them.
"Then, let me talk about a contradiction. That is, in order to save fuel, a design with a large bypass ratio is usually used. The larger the bypass, the larger the diameter, and the larger the size of the blades. However, the speed of an oversized fan cannot
Too high and too fast is not only a matter of strength, but can also cause shock waves and stalls. Do you understand this truth?"
"I understand." Yan Qiansheng really understood.
Luo Qianshi was about to continue drawing, but when he turned around, Xiong Tianhuo had already drawn a new picture.
Sure enough, Xiong Tianhuo also saw what he wanted to say.
Luo Qianshi started by using the picture drawn by Xiong Tianhua: "The compressor and the fan use the same shaft. The fan blades cannot rotate too fast, which will affect the speed of the compressor. We need the compressor to rotate very fast.
Right now, all the research is looking at a balance, where either the compressor performance is compromised or the fan is turned to a controllable maximum speed."
Yan Qiansheng immediately replied: "I understand. This is the truth that you can't have your cake and eat it too."
Xiong Tianhua picked up Yan Qiansheng's drawing at this time: "Ninety-nine percent of the pictures you drew of the gearbox are useless. The only interesting thing about the design is that there is a gap between the compressor and the fan.
A set of reducers, this idea is very genius. If this theory can really succeed, then it is possible to have both fish and cake."
Yan Qiansheng understood, understood completely, and quickly explained: "I don't know anything about turbojet. I designed a brand-new gearbox for the car to provide instant explosive power when going off-road, and then return to normal."
While driving, it can also maintain fuel economy and a higher top speed."
Luo Qianshi and Xiong Tianhuo looked at each other, and their reactions were the same.
Then, their students are also very discerning.
Someone came up and said, "Xiaoyan, you haven't eaten yet, let's chat a few words."
Then, Yan Qiansheng was coaxed away by several people.
Luo Qianshi and Xiong Tianhua took away about 1% of Yan Qiansheng's bundle of drawings. This was a brand-new idea that could make the fans and compressors operate in ideal conditions.
This not only increases power, but also saves fuel and increases cruising range.
It is definitely a feasible development direction for large-ducted turbojet in the future.
But, what kind of material is suitable? What kind of gear structure is suitable? What kind of rotation control is suitable?
