Chapter 2588: Turbofan-15 team

The research and development of aeroengines is divided into many stages. The first stage is of course the design. After the design, research and development, matching, and accumulation of various compressors, it will be on the test bench.
If you don’t match well during design, you can save up on the test bench, there will be a lot of problems, such as low pressure and high pressure mismatch, etc., the test run will be quite difficult, the original turbofan six is ​​like this, on the test bench After more than ten years, it was finally dismounted. Apart from anything else, the engine is struggling to start, and after starting, the throttle must not change suddenly, otherwise the engine will definitely surge, or even break the fan. Such an engine , It is impossible to have the conditions for installation.
If these problems are resolved, then it will be a permanent test run, which is to let the engine run continuously on the test bench. This time varies, some are 100 hours, some are 300 hours, at that time, our turbofan ten was the best one. Sufficient is a thousand-hour permanent test run, which is almost a month of continuous operation of a self-produced engine.
After completing this experiment, the engine must be disassembled to see if there are fatigue cracks in various internal structures.
After the inspection, there is no problem, it does not mean that the machine can be installed directly, and then several other safety features must be verified. For example, entering rainwater, dust particles hitting birds and so on. Wait until all of these tests are completed, and finally can be installed on the plane.
It is not straightforward to install the aircraft, but also needs to be continuously tested on the aircraft to verify whether the engine is working properly under various working conditions and whether there will be problems. The engine cannot shirk responsibility to the aircraft. For example, I The engine can’t change the throttle so quickly, you should treat it softly.
It is absolutely impossible for pilots to wait for the engine carefully. Fighters are born for combat, and they are not civil airliners.
The installation and test flight of the engine will take two or three years, less to say, so that after the entire test, the operating time of the aircraft engine will accumulate to several thousand hours, or even tens of thousands of hours.
The aero engine is such a long and tortuous process. Even if it is officially equipping the troops, it has not stopped. It has to continue to track and solve problems when it encounters problems. When it is almost all, it is time for the mid-term change.
Therefore, the completion of the endurance test drive is equivalent to the completion of the second step of the Long March. Although it is the second step, it is also very important, because next, the fourth generation of our own aircraft can be used for this engine. Matched!
In the previous research and development of aircraft engines, it was not so long. The reason is that the previous engines were all based on ethics. For example, our turbofan ten is almost a copy of the F110, and it is a mature model. After tens of thousands of hours of verification, the matching has been completed.
In fact, the current turbofan 15 is not a brand-new research and development of his own. It can be said that for this project, Qin Guan has retrieved all the information of F119.
However, the research team is definitely not copying this design. According to this information, the scientific research team researches and develops level by level and matches level by level. It can be said that the whole process is gone. At the same time, there is another most important thing, that is, a lot of new materials have been developed for this engine.
Aeroengines rely heavily on materials science. Without advances in materials, advanced engines cannot emerge. For this engine with a thrust-to-weight ratio of 10, the front turbine temperature is two hundred degrees higher than that of the turbofan. Of course, new materials are needed to support it.
The aero engine is the crown jewel of the entire industry. This sentence is definitely not a simple statement, but a real industrial crystallization.
When Qin Guan came to 6624, it was already night.
When he came here, he not only saw Mr. Kang, the person in charge of Turbofan-15, but also saw many other old faces, Mr. Song, Mr. Lu, Mr. Wu, they all gathered here.
Turbofan Ten is the last project that Mr. Wu has taken command of. He is now old and has left the front line of scientific research to go to university to teach and continue to use his waste heat. However, as the veteran of Han Guo's aviation power industry, when he encountered such a major happy event, he of course had to follow it.
Kang Lao is the person in charge of 6624. This project was developed by bringing together national aerospace power industry institutions. Therefore, 6624 is taking the lead. After all, 6624 is a gas turbine research institute, which is originally a comprehensive organization.
Lao Song and Lao Lu were all waiting to match the fighters.
"Ms. Qin, I'm glad you can come." Seeing Qin Guan's arrival, everyone rushed towards Qin Guan and shook hands with Qin Guan. For them, Qin Guan is the backbone of his mind. Without Qin Guan, they would not There will be these results of them.
In particular, the research and development of an engine will cost a lot of money. The research and development of the turbofan 15 is also constantly burning money. Among them, the North Industries Corporation continues to provide funds, plus national funding, It can be regarded as today's results. If only relying on state funding, the project would be at least five years late.
"Well, this engine has already begun to be disassembled?" Qin Guan asked.
After a permanent test run, the engine was about to be disassembled for decomposition and research. At this time, Qin Guan put on a white coat, passed the dust-free passage, and entered the work area with everyone.
After disassembling the outside, you can see the structure of the inner blade. Although it has been permanently tested, the inner blade is still quite new and bright, with a metallic luster.
"The most challenging aspect of this engine in the research and development process is the turbine blades." Kang said: "We made great efforts to develop a new process and completed the cooling design of this blade. Yes, the turbine blades."
When Qin Guan looked over, he was shocked. At this moment, there was a bear countryman there, holding a magnifying glass, carefully observing the leaves.
Fedotov Sergeevich-Tumansky? Qin Guan scanned the name with his mental point system, and he was even more surprised when he saw the name.
Because Qin Guan knows the composition of Xiong's surnames, the last is the family surname, the middle is the father's name, and the front is his own name.
Who is this designer's father? Sergei Konstantinovich Tumansky! That is, the person in charge of the well-known Alliance Engine Group, starting with the MiG 25 engine, has led the development of each model!
Now here are the turbofan-15 R&D team, how could there be such a character?