Chapter 205 Two Models
"I finally have the opportunity to work with you, Professor Xu. Professor Chen and Professor Gao are already in the conference room."

Wednesday, February 2009, 2, downstairs of the Space Technology Research Institute.

After such a long time, Xiao Xinbin, an assistant researcher, saw Xu Yuan again, and a visibly excited smile appeared on his face.

After saying hello and saying hello, he pretended to walk in front and lead the way.

In response, Xu Yuan smiled and followed Xiao Xinbin upstairs to the meeting room.

I still remember that he was recommended by Xu Chongxing to help with the Chang'e-1 lunar satellite orbit issue.

When he first came to the Institute of Space Technology, it was Xiao Xinbin who came down from upstairs to pick him up.

He is a cheerful and enthusiastic person.

Although his status has changed slightly now, becoming a full professor at the School of Mathematics of Qinghua University and a researcher at the Jincheng Aircraft Design Institute, the two still feel the same when they communicate.

So he was also happy to communicate more with Xiao Xinbin and asked about space environment monitoring information on the way.

"How is the monitoring information collection of the space environment and related professional departments in the institute going?"

To ensure the precise docking of space vehicles and manned spacecraft in a complex and changing space environment.

It is necessary to conduct in-depth analysis and research on space environment models, and to estimate the parameters of space environment usage by collecting a large amount of monitoring information from relevant professional departments internationally.

And we need to further innovate the space environment model.

Although he was not at the Space Technology Research Institute during the past half month.

We have not yet started calculating the space docking orbit, but we are thinking about specific solutions.

The docking of Tiangong-1 and the manned spacecraft is mainly to verify the space orbit docking technology.

But it’s just the beginning.

After all, a space station that is 100% complete and ready for use consists of multiple aircraft, including a core module, an experimental module, an optical module, a cargo spacecraft, a manned spacecraft, and more.

This means that space orbit docking technology is an important technology that needs to be used frequently.

Therefore, he cannot focus on the success of this docking, otherwise it would be only treating the symptoms and not the root cause.

It is necessary to ensure that every future docking of aircraft can be done with 100% accuracy. Only in this way can it be considered a mature technology.

Fortunately, the vast amount of knowledge he now possesses in his mind is not wasted. After entering the deep learning state from time to time these days, a preliminary plan was born under the accelerated collision of thoughts.

That's why he came to the Space Technology Research Institute today to start calculating for this plan.

Xiao Xinbin naturally didn't know what Xu Yuan was thinking at the moment. When asked, he didn't delay at all and immediately told him what he knew.

"That's right, Professor Xu."

"During this period, the institute has organized its superior forces to collect a large amount of monitoring information parameters from relevant professional departments internationally."

"The relevant parameters are still being collected."

Although he tried to control his emotions, one could still feel the excitement and excitement in his heart when he spoke.

Last time, thanks to Xu Yuan's help, they proposed the phase-adjustment orbit and completed all the calculations in a very short time, allowing their department to successfully complete the orbit mission.

You have to know that their progress was already far behind, which was dragging down the progress of the Chang'e-1 lunar exploration satellite project.

They were even prepared to delay the launch.

At that time, everyone felt quite guilty and was working under great pressure.

As a result, the situation changed drastically with the addition of Xu Yuan.

Not only did they come up with a more suitable and safer orbital plan, they also completed the calculations quickly and ultimately enabled the exploration satellite to be launched ahead of schedule.

This time, the group entrusted the task of docking the spacecraft in orbit to the Space Technology Research Institute.

Their department is naturally the main responsible team.

The key pressure is much greater than last time.

Very simple.

The lunar exploration satellite is the first launch in China's space history. Although it is an important milestone project, even if it fails, the impact will at least be limited and not a big problem.

After all, according to statistics from various countries, there are only a handful of successful first launches of lunar exploration satellites in history.

Failure can also be regarded as a way to accumulate experience.

However, the docking of the Tiangong-1 spacecraft and the manned spacecraft is different, which is related to whether the country can build its own space station in the future.

From being rejected by the international community when establishing the International Space Station to being further targeted by the House of Representatives signing a document, the development of the domestic space industry can be said to have always been at a disadvantage.

Only by building our own space station can we let overseas know how wrong the previous decision was.

In short, the more others don't want you to do something, the more you have to do it.

The outside world is not saying that building a space station alone is impossible, but it is a very stupid approach.

It is even more impossible to master space orbit docking technology.

So when all these become facts, I wonder who will be the truly stupid one.

Xiao Xinbin had heard these countless times at the meeting, and his goal became more and more determined. He was determined to solve the space orbit docking technology.

Fortunately, when their department was in trouble, Chen Jianfang invited Xu Yuan to help.

Originally, almost everyone did not go home for the Spring Festival this year, and they were in a relatively low mood facing the technical difficulties. However, when they learned that Xu Yuan would help with the calculations for space orbit docking, it can be said that everyone became excited and the gloom was swept away in an instant.

Xu Yuan has demonstrated outstanding capabilities in the lunar exploration satellite orbit and has achieved new achievements in the past two years.

Obviously the level should be higher.

Under such circumstances, solving the space orbit docking technology is definitely a sure thing.

After hearing Xiao Xinbin's answer, Xu Yuan nodded, then quickened his pace and rushed towards the meeting room.

To innovate the space environment model, a large amount of space environment monitoring information parameters are needed. The information from domestic monitoring stations alone is definitely not enough to meet the needs of establishing a new model.

It must be collected in large quantities internationally.

Not long after.

Xu Yuan and Xiao Xinbin came to the meeting room, and after pushing the door open, they saw several familiar faces.

It was none other than the project leader, Chen Jianfang, and Professor Gao Duo, the main researcher in the rail department.

When they saw Xu Yuan coming in, they immediately put on bright smiles on their faces and stood up to greet him.

"Our Professor Xu is finally here, come in and sit down."

A smile appeared on Xu Yuan's face at this time, and he approached and greeted them one by one.

The reference to Chen Jianfang is naturally his position.

Then he sat down in the seat next to him and said to Professor Gao, "It's been a while since I last saw you, Professor Gao. It's also my fault that I don't come to our institute often enough."

"I knew from the beginning that you had a bright future, but I'm still surprised that you've grown to your current level so quickly. As your position becomes higher, your responsibilities naturally come with higher levels. It's normal that you're so busy that you don't come back to visit." Gao Duo smiled and waved his hand in response.

And then he half-jokingly said: "It's mainly because I don't have a daughter as good as Yu Ran."

Xu Yuan was not surprised that Professor Gao knew about his affairs. After all, he and Chen Yuran were already engaged, and Chen Jianfang would definitely not hide it from his colleagues in the hospital.

What's more, other people in the hospital would be so happy that they could use this relationship to get him to come and help.

Naturally, I won't say much.

However, as a young man under 30, it is inevitable to feel shy when being teased by elders in such occasions.

Fortunately, Chen Jianfang, who was standing nearby, came to the rescue in time and changed the subject.

"Okay, Lao Gao, let's get down to business first."

When Gao Duo heard this, his envy immediately disappeared, and his expression instantly became serious as he started to talk to Xu Yuan about the topic.

"During this period, we have collected a large amount of space environment monitoring information and organized personnel to conduct in-depth analysis of the space environment model. However, the space environment is complex and changeable, and solar activity is frequent. Can these alone guarantee 100% accurate docking between the spacecraft and the manned spacecraft?"

"But this is not enough." Xu Yuan shook his head in response to Gao Duo's question.

Chen Jianfang next to him thought of something and said, "Didn't you say a few days ago that you had a specific solution?"

"Tell me quickly."

At this point Xu Yuan naturally wouldn't keep the audience in suspense. He organized his words a little and began to introduce himself.

"My idea is to creatively innovate the spatial environment model by calculating and checking various data."

"And a mechanical model is established based on the different resistances generated by the different postures of the aircraft in space."

"In this way, we can use these two models to identify space environment parameters and correct the atmospheric density model in real time, so as to overcome the difficulty of medium- and long-term orbit prediction and greatly improve the orbit control accuracy, thus laying a solid foundation for the rendezvous and docking mission."

His solution was to establish two major models: a spatial environment model and a mechanical model.

It is better to predict medium- and long-term orbits and eliminate the impact of the complex and changeable space environment.

With these two models, it will be much easier to ensure the precise docking of spacecraft and manned spacecraft.

After listening to Xu Yuan's plan, Chen Jianfang and Gao Duo immediately fell into deep thought about its feasibility.

About half a minute later, he said, "Your solution is indeed feasible, but the amount of data calculation and verification required is a huge number, right?"

"Calculating and checking data is what I am best at. I believe it won't take too long." In response to the two people's concerns, Xu Yuan said confidently.

Naturally, there was no suspense what happened next. After a vote, everyone unanimously agreed to Xu Yuan's plan.

And Gao Duo and his team fully cooperated.

Relying on his mathematical knowledge and mathematical thinking, Xu Yuan has a special method for calculating and checking data. Coupled with his super high efficiency after entering the deep learning state, it can be said that his progress in the next few months has shown a rocket-like rise.

Both the space environment model and the mechanical model are gradually being improved.

Although I have to travel between Jincheng and Yanjing more frequently, the projects are going relatively smoothly.

But when June came, Xu Yuan stayed in Yanjing.

In addition to Chen Yuran's graduate school graduation, the more important thing is that the National Science and Technology Awards Conference is about to be held...

(End of this chapter)