Chapter 148: Surprising Phase Orbit

As Xu Yuan raised his right hand, he immediately attracted the attention of everyone in the discussion room, and the expression on his face was quickly replaced by confusion.

A question mark emerged in my mind, and I didn’t know what Xu Yuan would do next.

They all knew that Xu Yuan had only been there for a few days. Normally, he should not even be familiar with the content of the project. At this time, he should concentrate on listening. If he were to speak on his own, there would be a high probability that mistakes would be made.

Gao Duo, who was sitting in the middle, noticed Gao Duo's actions, was stunned for a moment and then a smile suddenly appeared on his face.

He immediately responded: "Does Xu Yuan have any ideas?"

In addition to his mathematical achievements, the most important thing about Xu Yuan is his mathematical talent.

It just so happens that talent makes it easier for inspiration to be born.

Now that Xu Yuan has raised his hand, he might have some new ideas, so of course we have to listen to them.

Xu Yuan was already accustomed to this kind of scene, so there was naturally no need to be nervous when facing Professor Gao Duo's words.

Hearing this, he immediately stood up and said, "I do have some ideas."

"Tell me about it." Gao Duo's eyes lit up.

After getting Professor Gao Duo's approval, Xu Yuan stopped keeping the secret and directly expressed his ideas about the orbital plan.

"As Senior Brother Xiao just said, the traditional plan of directly sending a satellite into the Earth-Moon transfer orbit involves multiple orbit changes and the use of propellant is too great for the limited propellant."

“Therefore, I think we should abandon the existing track design and choose a more suitable one for calculation.”

Almost as soon as Xu Yuan finished speaking, several people present could not help but express their questions.

"We understand the problem that Junior Brother Xu mentioned, but the new track plan may not be more reliable."

"Yes, Junior Brother Xu, sending the satellite directly into the Earth-Moon transfer orbit is the safest option, although it consumes a lot of propellant."

"We are almost done with the calculations for the orbital design. If we give up and redesign the plan now, will the satellite's progress be delayed in terms of time?"

The existing plans are the result of their efforts over this period of time. Faced with a large amount of orbital measurement data, they have to calculate bit by bit to ensure the accuracy of orbit change and orbit entry.

If we give up now, all our efforts will be wasted and we will have to start all over again.

Chang'e-1 had already entered the component production stage, and their progress was delayed on the orbit side.

I'm afraid the satellite launch will have to be postponed.

The launch of key satellites cannot be done at any time. The timing needs to be determined based on the orbital window.

The narrower the track window, the more comfortable it is to ride.

Compared to the skeptical attitude of others, Xiao Xinbin's expression was a little complicated at this moment.

He had seen how serious Xu Yuan was these days. It could be said that he was really studying calculations attentively, and even he thought that he could not match Xu Yuan's learning level.

What is said in this case must be reasonable and not just for show.

Just as he was hesitating about what to say, he saw that everyone's eyes were on Professor Gao Duo.

After all, he is the person in charge of the track design work, and he has to make the final decision on what plan to adopt.

Gao Duo stared at Xu Yuan, his eyes still full of curiosity. Then he thought of something and asked with a smile.

"I wonder if you have a better plan, Xu Yuan?"

After learning that Xu Yuan came to help, he specially studied the relevant information about Xu Yuan in the past few years.

It is certain that Xu Yuan is not a person who speaks without purpose. Since he dares to propose abandoning the existing track plan, there must be a better alternative.

In addition, he is more aware of his responsibilities, the most important of which is to ensure that Chang'e-1 successfully completes the lunar exploration mission.

They did spend a long time perfecting the calculations for the traditional plan of directly sending satellites into the Earth-Moon transfer orbit, but if the remaining propellant and the smooth operation of the satellite in orbit cannot be guaranteed, then all the efforts and hard work will be wasted and have no value.

In this case, it would be better to change the new plan as soon as possible to ensure the complete success of the lunar exploration project.

This is exactly what Xu Yuan was waiting for. When faced with Professor Gao Duo's question, he immediately nodded in agreement.

"After studying it over the past few days, I did come up with a more suitable track design."

After saying that, he walked straight to the writing board against the wall, moved a few steps towards the desk, and explained in detail to everyone while drawing a simple diagram on it.

"I think Chang'e-1 is more suitable for a phase adjustment orbit, which is to wait for the moon to fly over while the satellite is orbiting the earth, and then enter the earth-moon transfer orbit."

"The phased orbit enables the satellite to gradually gain velocity increments as it races toward the moon, reducing the impact of gravity loss caused by large velocity increment changes."

"We can ensure as much propellant as possible to ensure that the satellite can orbit the moon and carry out its work."

Xu Yuan paused here, giving Professor Gao and others time to think and analyze.

It can be clearly seen that everyone's eyes are wide open at this moment, and their gazes are focused on the drawing on the writing board.

After spending so much time designing the Chang'e-1 orbit, it is natural to be able to easily distinguish the quality of the phase-adjustment orbit proposed by Xu Yuan.

Several postdoctoral fellows who were originally hesitant about changing the design plan are now becoming more and more excited.

However, Xu Yuan did not pay attention to them for the time being, and continued to explain at his own pace.

"The phase adjustment orbit and the Earth-Moon transfer orbit can be designed in sections and then spliced ​​together." "Eventually, we can reach the lunar orbit."

"In addition, we can also calculate the time when the satellite will enter the Earth-Moon transfer orbit from the Earth, as well as various parameters such as the separation of the satellite and the rocket, to ensure that the entire process of the satellite entering orbit is under control."

Of course, a writing board alone could not display everything, so Xu Yuan ended his report here.

Professor Gao listened to everything Xu Yuan said, his eyes fixed on the contents on the writing board, and a look of joy suddenly appeared on his face.

And the smiles became brighter and brighter.

“This is a good plan.”

"Just from the impact on the satellite and the amount of propellant remaining, it is much stronger than the previous traditional orbit."

"And this splicing idea is also very novel and bold."

Professor Gao made no secret of his praise for Xu Yuan's proposal, and even led the applause after he finished speaking.

This caused warm applause to suddenly break out in the originally quiet discussion room.

Xiao Xinbin, on the other hand, was sitting there dumbfounded, and hadn't even come to his senses yet.

I couldn't believe what was happening before my eyes.

He naturally knew that Xu Yuan had a strong talent for mathematics, and he believed that with Xu Yuan's participation, the problems on track could be easily solved. In fact, Xu Yuan did it.

The key point is, isn’t this efficiency a bit too fast?

In just a few days, if it were someone else, they might not even be fully familiar with the working environment.

As a result, Xu Yuan not only understood the existing design plan, but also adjusted the track design plan based on it.

All I can say is that Professor Chen made a very correct decision to find Xu Yuan to help.

But just as he thought of this and was about to convince himself to accept what was happening in front of him, he was instantly broken by Xu Yuan's next words.

"We have never done this kind of splicing before. To ensure accuracy, it will probably require a lot of repeated practice and calculations."

Then Professor Gao thought of something and suddenly frowned as he pointed out the problems in this track design plan.

Whether it is the phase adjustment orbit, the Earth-Moon transfer orbit, or the final circumlunar orbit.

The idea of ​​adopting segmented design and splicing can definitely be regarded as a better track design method.

But they had never tried this idea before. The first attempt was the important Chang'e-1 lunar exploration satellite. Even as the person in charge of the orbit, he was a little hesitant.

Just when he was thinking about whether to report the situation to chief designer Chen Jianfang, Xu Yuan's voice suddenly came to his ears again.

"Professor Gao's concerns are indeed justified, but I have already completed the docking calculations for the entire orbit."

"All we need to do is practice and verify it repeatedly."

Almost at the moment Xu Yuan uttered this sentence, everyone, including Professor Gao, couldn't help but widen their eyes.

I even doubted my own ears.

"What did I hear?"

"Junior Brother Xu seemed to say that he has completed the calculations for the new track design."

"How can this be?"

Xiao Xinbin had the same reaction as everyone else, and slowly believed that Xu Yuan had already calculated the orbital data.

You have to know that this is different from a design plan. It involves so many numerical values, which is a huge workload, and you must also ensure that the calculation results are absolutely accurate without any errors.

Otherwise, even the slightest mistake may have serious consequences for the satellite launch.

Finally, Professor Gao was the first to react and quickly asked, "Xu Yuan, is what you said true?"

"The calculation process and results are on my seat." Xu Yuan answered confidently with a smile on his face.

Hearing this, Professor Gao no longer hesitated. He immediately stood up, walked over, opened the door of the discussion room, and went straight to Xu Yuan's seat, eager to check the relevant information.

As for Xiao Xinbin and others, they naturally did not delay and followed Professor Gao out.

It can be said that it was at this time that they finally realized why geniuses are called geniuses.

This efficiency alone is beyond the reach of ordinary people.

These past few days, Xu Yuan had successfully completed the calculation of the phase adjustment orbit under deep learning conditions, and he took the opportunity of the Monday meeting to bring it up directly.

So much so that because he was only halfway through the meeting, he was the only one left in the discussion room.

He glanced at the empty room, then walked towards the seat outside with a smile on his face.

After Professor Gao and his colleagues saw the entire calculation process and results, they immediately organized people to conduct drills and verifications to determine the accuracy of the calculation results.

As for the final result, naturally the phase-adjustment orbit design proposed by Xu Yuan was adopted, and it is no exaggeration to say that as long as the window is right, it does not matter if Chang'e-1 is launched now.

It was not until the verification was completed in the afternoon that Professor Gao took Xu Yuan to report to Chen Jianfang with a happy face.

(End of this chapter)