"The one in the United States is not new, it has been put into use two years ago, and the one in Hansiguo has only been researched this year, but it is also an algorithm simulation of additive manufacturing, whether the experiment has been carried out, there is no news yet."

"But the technology is great! It must be a trend in space rocket research and commercialization. ”

Wang Hong became excited as he spoke.

"Our current rocket propulsion system, which is based on the traditional process design of turbine pump housing, injector and other complex engine components, if simply combine multiple parts into one and use the additive manufacturing process to form, although the number of welds is reduced, but it cannot maximize the advantages of additive manufacturing technology."

"This is because parts designed based on traditional processes do not fully take into account the advantages of additive manufacturing, which are less geometrically constrained and have high performance. In order to maximize the performance of complex components, we need to develop an optimal design method for the integration of complex components and functional structure according to the characteristics of the additive manufacturing process. ”

"The injectors, the thrust chambers, the nozzles, these are the core components of the engine, and if we can make them all together through additive manufacturing, then we can produce rockets much faster, and they will be more capable of running in like never before."

Although Lin Yu didn't understand it very well, and he was not an expert in this area, it did not prevent him from feeling the changes brought by this technology to aerospace research in Wang Hong's words containing a lot of information.

Sure enough, there are people outside the world, and there are heavens outside the sky, and he is a genius, but the somewhat neurotic man opposite him is also a genius.

"So do you have a direction for your research?"

Wang Hong gave another disdainful look, "This is not my research direction, what is my research direction?" ”

I'll put up with it. Lin Yu repeatedly warned himself not to beat people.

"I mean, you've said all that, where are you going to start?"

"I want to start with the parts." Wang Hong said firmly.

"We can use Inspire optimization software to first populate the design areas that can be used, and then build a mathematical model of topology optimization to optimize the topology." As he spoke, Wang Hong wrote down a few formulas on the table.

"Please, I can't see it."

I'm not angry, I'm not angry, I'm still enduring.

This time, Wang Hong didn't say anything, just dictated these formulas.

"These parts can be lightweighted in this way."

"Lightweight!" Lin Yu sighed, he knew what it meant to be lightweight in rockets.

"Yes, it's lightweight, I have a data here, let me tell you, a Boeing 737 aircraft with a take-off weight of 65 tons, for every 1 pound saved, it can save hundreds of thousands of dollars in fuel costs over its life cycle; One company's Trent XWB-97 engine is partly made of additively manufactured parts, which has increased production efficiency by one-third and shortened lead times by 30 percent. ”

"It is important to know that the economic, social and military significance brought by the lightweight of aviation parts is very prominent."

"In addition, this technology not only has a good improvement for rockets, but also has a very good effect on aviation, and the two examples I just talked about are the best representatives."

"If our space center optimizes this technology, then there will be considerable progress in our country's aerospace industry."

"By the way, do you know why I'm doing this technology?"

Wang Hong looked at Lin Yu with burning eyes again.

"Because of the restrictions?" Lin Yu thought about it for a while and came to this conclusion.

"Yes", Wang Hong patted the table, "is the limitation, for those of us who are engaged in design, the excessive requirements of the traditional manufacturing process also seriously limit our design thinking, and many ideal structural forms are abandoned due to the inability to realize, which seriously affects the innovation of aircraft structural design and becomes a bottleneck for the further development of aerospace equipment." ”

"Is it that serious?"

"It's not serious! It's a scary thing, okay? I'm a little skeptical that you're a spy! ”

"Here comes the big plate of chicken!" Just when Lin Yu couldn't help it anymore and wanted to do it, the previous uncle walked in with an oversized plate.

"You're new today, aren't you?" The uncle looked at Lin Yu and said with a smile, "I almost remembered everyone this week, only you are a fresh face." ”

"Uncle, good eyesight." Lin Yu, who was interrupted from casting the spell, also gave him a thumbs up in surprise.

"Haha, I just have a better memory, I can't compare to you people who are engaged in research", he wiped his hands with an apron, "I just heard what Xiao Wang said outside the door, it's a little harsh, don't care about it, he's always been like this, he can't talk but his brain, obviously his brain is good, but he speaks stingingly." ”

"But he's still good, and he likes to stay with us cooks, but it's a little silly."

Lin Yu listened to this somewhat contradictory remark, and could hear that the uncle was saying good things to Wang Hong, the thorn on the opposite side.

"Uh-huh, I see, thank you, uncle."

"You're busy, uncle, I'm going to eat." Wang Hong was blunt.

"Then you eat, I'll go cook." The uncle left the room.

"Wang Hong, are people here eating so late?" Lin Yu is not pursuing the previous matter.

"Aang, yes." Wang Hong chewed the chicken in his mouth and replied vaguely.

"We researchers usually get late and don't have time to eat on time, so we eat when we're hungry, so the cafeteria is open almost 24 hours a day."

"Doesn't it taste good?" Wang Hong watched Lin Yu take a bite and couldn't stop.

"Well, that's good."

"Isn't that Ann?" Wang Hong said in a dialect, "This uncle is a Hanmin from the border province, and he has learned the authentic practices of the Uyghurs. ”

"Which dorm do you live in?"

Wang Hong raised his head, "Huh? ”

"I said which dorm do you live in?"

“613。”

"I live in 701."

"The seventh floor?"

"The sixth floor is almost full."

"The seventh floor is a person", Wang Hong said this, paused and thought for a while, and then said something that did not match the preface, "I think you are a good person." ”

Nonsense, of course I know I'm good, I'm already very kind-hearted if I didn't hit you.

Lin Yu thought viciously.

"I'm also living alone, so I'll just move into your dormitory!"

Wang Hong said very directly, and in Lin Yu's ears, there was no intention of discussing at all, and he just notified him.

"Don't you even ask me if I agree?" Lin Yu was speechless, if he lived with this guy, he would probably be angry to death, right?

"Didn't I say you're good? Completely different from my previous roommates. Wang Hong felt a little incredible, as if Lin Yu asked this question very strangely.

……

This made Lin Yu silent.

He didn't live alone before.