"The determination of Chinese astronauts to dedicate themselves to aerospace and sleep in the desert has always been unswerving. ”

Suddenly, a voice sounded behind Chu Hao.

Chu Hao turned his head and saw that it was an old man in his sixties, with deep wrinkles on his face, but his eyes were very bright, and even scorching and shining like the sun, and there seemed to be traces of time and a picture of wisdom in it.

"Hello Academician Wang. Shi Lao stepped forward and shook the old man's hand.

Then he introduced to Chu Hao: "This is Academician Wang Yongzhi, the chief designer of the manned space project. ”

Hearing this, Chu Hao instantly became in awe, clasped Wang Yongzhi's hand with both hands, and shook it, "I have heard your name for a long time, and today I finally got to see Mount Tai." ”

It can be said that it is a true portrayal of astronauts, and that they are particularly able to endure hardships, fight, tackle key problems, and dedicate themselves to a high level of the spirit of manned spaceflight.

China's manned space program started several decades after the development of the world's space powers. In order to narrow the gap and catch up, the manned space program has been clearly stated since the beginning of its implementation, and it is necessary to persist in starting late, starting from a high starting point, with low investment, high efficiency, few projects, and a high level, so as to embody Chinese characteristics and technological progress on the whole, and take the road of leapfrog development.

The manned space flight project is a key project in China's aerospace field that is the largest in scale, the most complex in system, the most technically difficult, and has the highest requirements for quality, reliability, and safety. From the laboratory to the production enterprises, from the space launch site in the depths of the desert to the Yuanwang survey ship on the vast three oceans, the footprints of astronauts have been left everywhere, and the sweat of astronauts has been sprinkled with climbing.

China's manned space project, from spacecraft design, rocket improvement, orbit control, and space application to the demonstration and design of such programs as tracking and control communications, astronaut training, and launch and landing sites, is aimed at the world's advanced technology, ensuring that the project will have a strong latecomer advantage at the same time, and that the key technologies will be able to keep pace with the world's advanced level, and some will surpass them. We have dared to surpass, overcome one key technical problem after another, and obtained a large number of core technologies and productive key technologies with independent intellectual property rights, demonstrating the outstanding innovation ability of Chinese astronauts in the new era.

The builders of China's manned space industry are a team with glorious traditions and outstanding meritorious deeds; Chinese astronauts have bravely shouldered the sacred mission of climbing the peak of aerospace science and technology, and have been indifferent to fame and fortune and silently dedicated themselves to the motherland's space industry.

Senior General Chen Geng once asked Qian Xuesen: Can the Chinese do rockets? Qian Xuesen said: Foreigners can do it, why can't the Chinese? Are the Chinese half a cut shorter than them?

It is the firm belief and persistent efforts of Chinese astronauts that have created the Chinese's dream of flying.

If you don't forget, there will be an echo.

Astronauts!

Academician Wang Yongzhi is such a person, Chu Hao naturally knows.

He is an expert in aerospace technology, one of the pioneers of China's manned space program and an academic and technical leader.

In 1952, he was admitted to the Department of Aeronautics of Mizuki University, graduated from the Moscow Aviation Institute in 1961, majored in missile design, was elected as an academician of the International Academy of Astronautics and a foreign academician of the Russian Academy of Cosmonautics in 1992, and was elected as one of the first academicians of the Chinese Academy of Engineering in May 1994.

As for why Chu Hao is so clear, it is because in his previous life, in 2010, the asteroid with the international permanent number 46669 was named "Wang Yongzhixing"

Academicians have long been committed to the overall design and development of Huaxia strategic missiles and launch vehicles, and have participated in and presided over the design and development of 6 missile models, 2 carrier rocket models and Shenzhou series spacecraft. He participated in and presided over the completion of the technical and economic feasibility demonstration of the China manned space project, presided over the overall technical scheme design, organized the overall technical coordination in the development and test, put forward a series of design ideas to promote the leapfrog development of the China manned space project, and correctly handled many major technical problems.

"Teacher Chu, let's talk about it, I should say that I have heard of the name for a long time. ”

Speaking of this, Academician Wang Yongzhi smiled, "I am not polite, when it comes to popularity, whether it is at home or abroad, Mr. Chu's reputation is far louder than mine, and his achievements are much higher than mine." ”

Indeed, Chu Hao is a leading figure in the Chinese scientific research community in terms of fame and achievements, and he is also an ironclad Nobel Prize winner.

Chu Hao scratched the back of his head, a little embarrassed, "In terms of contributions to Huaxia, I really can't compare with you." ”

After a few more polite words, Wang Yongzhi invited Shi Lao and Chu Hao to the conference room.

"Since Teacher Chu is here, then I won't talk nonsense and go straight to the point. Wang Yongzhi said as soon as he sat down.

Chu Hao rubbed his nose, he felt that this time the matter was probably much more serious than he imagined, because he had already read the four words of impatience from Wang Yongzhi's behavior.

"You know, the No. 2 spacecraft, the launch failed, right?" Wang Yongzhi asked.

Chu Hao nodded.

"Then I'll make a long story short, after our inspection of the wreckage of the No. 2 spacecraft, we can be sure that the thermal insulation materials are not up to par and eventually cause the spacecraft to fail, and we invite Mr. Chu to come, I want you to see if you can help us solve this problem, and it would be best to join our Shenzhou spacecraft project. Wang Yongzhi said.

Chu Hao frowned slightly, he probably guessed what Wang Yongzhi invited him to come over, it was nothing more than a matter of materials, as for orbit calculation, astronaut training, spacecraft design or anything else was not his strong point.

But he didn't expect that it was actually a problem with the ship's thermal insulation, which would be a big problem.

It can be said that the spaceship insulation layer is the spaceship's clothing, just like human clothes, which can keep warm when the weather is cold, and can protect from the sun when the sun shines, and at the same time, the clothes can also isolate the damage to the skin caused by harmful factors such as dust and haze.

Generally speaking, a manned spacecraft consists of three modules: an orbital module, a return module, and a propulsion module. The orbital module is the main space for astronauts to live and work, and the equipment installed in the orbital module does not generate much heat.

The tunic of the orbital module consisted of several layers of insulating material components with a thickness of about 2 cm. It can efficiently isolate the heat exchange between the space environment and the orbital bulkhead, greatly reduce the heat leakage on the surface of the cabin, and reduce the influence of drastic changes in heat flow outside the orbit on the cabin temperature. On the outer surface of the multi-layer thermal insulation component, there is also a gorgeous composite film, whose function is to improve the spacecraft's ability to protect against particles such as atomic oxygen in orbit.

The return capsule undertakes the important mission of bringing astronauts back to the ground safely, and needs to withstand the high-temperature ablation environment when passing through the earth's atmosphere during the return process, so the inner layer of the return capsule coat is a thick anti-ablation material divided into a grid, and a specially designed organic thermal control coating is sprayed on the outer surface, which not only improves the external heat flow absorption capacity but also reduces the infrared radiation ability, and provides strong support for ensuring the temperature conditions of the return capsule during orbit.

The propulsion module is a non-sealed module, which is densely arranged with a variety of equipment, and the heat dissipation radiator of the active fluid circuit is also installed in the propulsion module, so the propulsion module has high requirements for heat dissipation.

Generally speaking, a light green organically coated heat dissipation surface is designed on the structure of the propulsion module. Secondly, the outer surface of the radiator installed on the cabin is made of pure white thermal control coating, which can greatly improve the radiation heat dissipation ability.

At the bottom of the propulsion module, a high-thrust engine is installed, in order to effectively suppress the impact of high temperature after the engine ignition on the propulsion module, this area is also designed with multi-layer thermal insulation materials, but it is different from the orbital cabin in that it is a high-temperature multi-layer thermal insulation material, which can isolate the maximum temperature up to 900 °C, it is called a high-temperature thermal insulation suit.

Of course, the turbine of the thruster is usually made of high-temperature resistant titanium alloy, which is Shi Lao's strong point.

It can be said that thermal insulation materials are a very important part of the spacecraft and play a decisive role in the final success of the spacecraft.

But Chu Hao really didn't expect that it would be a problem with the thermal insulation material, it is precisely because of the importance of thermal insulation materials that thermal insulation materials should be studied in the early stage of scientific research, and it can even be said that relatively mature products can be.

But now, there is a problem with the insulation, which is a little too incredible.

Wang Yongzhi's old face was slightly red, and he couldn't help but argue: "This time, the materials used in the spacecraft body are not the same as those used in the initial stage of design, which results in the need for more advanced thermal insulation materials. ”

Chu Hao nodded, and recognized Wang Yongzhi's statement, indeed, sometimes in order to increase the strength of a certain aspect, you will have to sacrifice some performance requirements in other places, which is normal in scientific research.

As for why it failed, Chu Hao has not been able to contact the specific materials yet, he can only say that the first is a technical problem, and the second is really bad luck.

Because the spaceship is on fire, it does not mean that the whole body is on fire instantly, but it is just that a special, relatively weak place starts to catch fire, and then spreads to the entire spaceship.

Chu Hao shook his head, "This problem, I'm afraid I need to see the specific papers, as well as the experimental process, including the performance parameters, so that I can know how to solve it, but it shouldn't be too difficult." ”

Shi Lao and Wang Yongzhi glanced at each other, and they could both see the joy in each other's eyes, they really didn't expect that it would pop out of Chu Hao's mouth, it shouldn't be too difficult.

If someone else said this, I'm afraid everyone would think that they were bragging, after all, this is a problem for hundreds of experts in the entire Shenzhou spacecraft program.

But when Chu Hao said this, it was really not bragging, after all, in scientific research, what Chu Hao said really didn't say that it hadn't been realized.

"These information documents, I'm afraid you need to officially join the Shenzhou spacecraft program before they can be opened to you, although I really want you to join, but I think you still need to think carefully. Wang Yongzhi said with a heavy face.

If it were someone else, he wouldn't be so cautious, but Chu Hao was too special.

The so-called such a young genius, who is in his prime and full of honor, makes him incognito, has been kept secret, and cannot contact the society and his family, he himself feels that this is a crime.

To be honest, if it weren't for the Shenzhou spacecraft plan being too important, the above would really not agree to their request to absorb Chu Hao into the Shenzhou spacecraft plan.

"I officially applied to join the Shenzhou spacecraft program. Chu Hao said righteously.

Since he promised Shi Lao before, then he will not regret it, and now he is really unpopular

Because the spaceship is on fire, it does not mean that the whole body is on fire instantly, but it is just that a special, relatively weak place starts to catch fire, and then spreads to the entire spaceship.

Chu Hao shook his head, "This problem, I'm afraid I need to see the specific papers, as well as the experimental process, including the performance parameters, so that I can know how to solve it, but it shouldn't be too difficult." ”

Shi Lao and Wang Yongzhi glanced at each other, and they could both see the joy in each other's eyes, they really didn't expect that it would pop out of Chu Hao's mouth, it shouldn't be too difficult.

If someone else said this, I'm afraid everyone would think that they were bragging, after all, this is a problem for hundreds of experts in the entire Shenzhou spacecraft program.

But when Chu Hao said this, it was really not bragging, after all, in scientific research, what Chu Hao said really didn't say that it hadn't been realized.

"These information documents, I'm afraid you need to officially join the Shenzhou spacecraft program before they can be opened to you, although I really want you to join, but I think you still need to think carefully. Wang Yongzhi said with a heavy face.

If it were someone else, he wouldn't be so cautious, but Chu Hao was too special.

The so-called such a young genius, who is in his prime and full of honor, makes him incognito, has been kept secret, and cannot contact the society and his family, he himself feels that this is a crime.

To be honest, if it weren't for the Shenzhou spacecraft plan being too important, the above would really not agree to their request to absorb Chu Hao into the Shenzhou spacecraft plan.

"I officially applied to join the Shenzhou spacecraft program. Chu Hao said righteously.

Since he promised Shi Lao before, then he will not regret it, and now he is really unpopular