[1] THE SCHOLAR ADVANCED TECHNOLOGY SYSTEM (END)
Chapter 60: The National Competition Begins!

...welcome to read...

Translator: Translated Henyee Editor: Translated Henyee

September 12 - Competition is held on schedule!

The day before the competition, Lu Zhou and the others boarded the school bus and went from the new campus to the old campus. They will stay in temporary dormitories arranged by the school.

Mattresses and pillows have been prepared so students only need to bring their own blankets. Some people don't even bring blankets. After all, the competition would only last for 72 hours. The average sleep time for each student is less than 10 hours.

For example, Lu Zhou was like this.

His task was the toughest as he had to finish most of the work. He could only take a short nap on the second night and hence, he did not even bring a change of clothes. The first thing he did when moving to a new dorm was to lie in bed and try to sleep.

He had to force himself to fall asleep.

When Lu Zhou woke up at five in the morning, he lay in bed until seven before he went to breakfast. He met Wang Xiaodong and Lin Yuxiang before they all headed to the special computer room the school prepared.

According to official enrolment information, there are more than 70,000 students from 23,347 teams, across 1338 universities. There are teams from 33 provinces, autonomous regions (including Hong Kong and Macau), and the United States. Everyone clicks on the competition website at the same time and downloads the question.

The competition is co-sponsored by the Ministry of Higher Education of the Ministry of Education and the Chinese Institute for Industry and Applied Mathematics. Because it's hard and fair. The effect is lower than the "Challenger Cup", but the prize is in a sense more valuable than the "Challenger Cup".

At half-time seven in the morning when ten teams are sitting in the computer room.

Although most people choose to use their own laptop to answer questions, they bring their laptop into the computer room. In any case, wifi in computer rooms and libraries can allow students to download online theses for free. They are expected to win this kind of competition through resources at Baidu.

When Professor Liu came, he smiled and greeted his three students. He's not talking about competition. Instead, he asked how they slept or how the dorms. After that, he walked out of the computer room, drove the school bus, and returned to work on his own project.

At eight, the bell rang.

Everyone quickly logged on to the official website and downloaded the question.

The questions are divided into ABCD for four main questions. Among them, AB is for undergraduate students, while CD is for students who have special degrees. Each team must choose a question. Teams are given an MD5 hash from the official website and they must upload a thesis in PDF form and pass the MD5 check.

In general, since they only had half an hour to choose a question, everyone scrambled to read the question.

However, when they saw the question, they were dumbfounded.

“Question A is the design and control of the landing trajectory for the Chang'e 3 spacecraft ... Question B is designing a folding table! F* ck! What are these questions this year? "

"This is completely different from the training questions we do!"

“I did something similar a few days ago. It was like designing the launch of the Shenzhou Rocket ... But I don't expect that question to come up in the competition ... I'm too careless! "

“For f * ck, don't you get 95 in advanced algebra? Think something! ”

"I learned advanced algebra, not rocket science!"

"Design table ... How could you do that? Are there only four legs? Fold ... We could try adding a spring on the back of the leg? "

The computer room was quite crowded and it was clear that the students had problems with these questions because they did not know where to start.

However, some students are different.

For example, Luo Rundong of Lu Zhou's class was secretly communicating with his teammates.

And Liu Rui ... The boy seems to be quite reliable as he has finished reading the questions and has already assigned the work to his teammates.

Wang Xiaodong looked at the two questions and frowned.

The sky seems to have collapsed.

Both questions are related to physics.

The first question is related to the calculation of the trajectory of space which of course is impossible to solve only with the knowledge of SMA physics. On the surface, the second question seems simple, but it is actually not much easier than the first question. It involves the analysis of the dynamic motion of the table leg, the analysis of material stress, and a dozen other problems. Not only will it require knowledge of mathematical modeling, but it will also require a certain level of involvement in structural mechanics as well as material science.

Yet…

"Mathematical genius" Lu Zhou in the group was only a second-year student and he had just started physics class.

They should choose the easier questions.

Wang Xiaodong looked at Lu Zhou, "Should we choose question B?"

Lu Zhou shook his head, "Choose question A."

"Question A?" Asked Wang Xiaodong. He frowned, "Are you sure?"

“I've finished studying university-level physics. Although aerospace physics seems complicated, its content only includes three chapters, ” Lu Zhou said. He paused for a moment before looking around and saying, "Also, look how many teams are picking question B."

Since question A is so creepy, it is only natural that most teams choose question B. Lu Zhou must be brave and face the dragon!

Of course, Lu Zhou made this choice because he was confident about question A.

Wang Xiaodong nodded and naturally understood the meaning behind Lu Zhou's last sentence.

"Okay, then you should do some modeling."

"I understand."

The two geniuses had reached a consensus.

Lin Yuxiang looked at his teammates and asked weakly, "Part ... which can I help you with?"

Wang Xiaodong gave her a gentle smile. He was about to say "I'll do everything" when Lu Zhou, who was busy writing on A4 paper, interrupted Wang Xiaodong and said impolitely, "Bring food and water, thank you."

Programming, thesis writing, and modeling. These three tasks were already allocated and the only thing they needed was someone for food delivery.

Lu Zhou thought, "Don't think it's that easy to get free winnings." He had to make this girl at least do something.

Wang Xiaodong: ".." - G: "..."

Lin Yuxiang did not complain. Instead, he nodded excitedly, "OK, I'll do it!"

The advantage of one person doing mathematical modeling and thesis writing is that it eliminates communication problems.

At the same time, as the captain, Lu Zhou could issue an order to Wang Xiaodong, who was in charge of coding.

Therefore, there would be no difference of opinion between teammates!

There are three sub-questions:

(1) Determine the position of the far and near sides of the moon landing. Also, determine the speed and location of Chang'e 3.

(2) Determine the optimal trajectory of Chang'e 3 and the optimal control of the six stages.

(3) Make an appropriate error analysis and sensitivity analysis for the designed landing trajectory and control strategy.

“The next part is a summary. This section can be left until the entire thesis is written. The focus is on question analysis, which involves the whole process of modeling thought, which is the soul of the paper, ”mum Lu Zhou while biting his pen and tapping his fingers on the keyboard. He wrote an outline of the thesis and began to define the critical soul of the paper based on its calculations.

[Question 1. To obtain the location of the moon's far and near sides of the landing, as well as the size and direction of the corresponding speed of Chang'e 3, the, first of all we use Newtonian physics combined with known conditions for calculation. Chang'e 3 main deceleration stage movement is divided into uniform variable speed linear movement. Using MATLAB, the main deceleration phase of the iterative operation ..]

[Question 2. To ensure the optimal landing trajectory of Chang'e 3 and optimal control of the six stages, take minimum fuel consumption as the goal. Using the parameters given by the problem, use MATLAB to identify obstacles on digital height maps. To achieve obstacle identification and landing point location, simulate optimal landing orbit mode ... "]

[To analyze the error or landing orbit control strategy designed in section 2, we need to first list all possible variables that could cause the error.]

Lu Zhou went into a state of being immersed in his own thoughts. He was completely focused on the question.

After he analyzed the question, he felt his brain was clear. Even the entire general framework of the thesis began to form in his mind.

All that remains is to translate the outline into a mathematical question ...

For most of the team, they did the thesis after programming and modeling, but for Lu Zhou, he could do both at the same time!

This was their team's biggest advantage!

Seriate

this is the last chapter, because I want to go on hiatus first hehe, if through 2 days I ngk up, chat or spam well