Chapter 114: The T-30 in Context
Thanks for the reward of 198215dai.
Aviation power data and the principle of automobile engine driving data are the same, are relying on years of data to achieve the best efficiency of the engine, but the operation data collection of aero engine is much longer than the data collection of automobile engine, this is not to say how high the data collection of aero engine is technically, it has no technical difficulty, the key is that you have to settle down, day after day year to do the work of data collection, this work is not the slightest excitement / very boring, a do for decades, A person's whole life is dedicated to data.
With a huge database, modern high-performance digital aero engine will become possible, the later generations of Qinling is to imitate the American F110 engine, the reason why it has been engaged in decades has not met the requirements in addition to processing technology, material technology and other factors, the lack of this key link in the aviation power operation database is also one of the reasons, China has not known to engage in aero engines to collect aviation power operation data, It was not until around 2010 that I learned that modern high-performance aero engines are inseparable from the support of databases, while Europe, the United States and Russia have been doing it for decades, which cannot but be said to be sad for the heart of China.
Why is aerodynamic operational data so important for modern aero engines? This is actually related to the control system of the aero engine, the aero engine is the same as the automobile engine, the higher the power of the engine, the better the performance of the engine, how to improve the power of the liter? The common practice is to use the computer to manage the engine, the previous management of the engine is mechanical management, the system is complex and the efficiency is low, since the birth of the computer, people want to use the computer to manage the engine, so that not only can save a large number of spare parts to reduce the load of the engine, its efficiency will also be greatly improved, but these must be based on the collection of various data, without the support of various data, the full authority digital aero engine will always be just a castle in the air.
For example, taking the automobile engine as an example, in the eighties, a technology called VVT became popular in the automobile engine, this VVT technology can make the air more fully enter the combustion chamber, so that every drop of gasoline can be more fully combusted, and then the engine can get more abundant power, so as to achieve the purpose of fuel saving and emission reduction.
This vvt technology, the Chinese name is both variable valve timing technology, to put it bluntly, the breathing technology of the engine, when the engine is running, through the electronic control unit, according to the data displayed everywhere in the engine, with the operation of the engine, constantly adjust the time and angle of the intake valve opening and closing on the cylinder, so as to allow the maximum amount of air to enter the cylinder, and gasoline to achieve an optimal mixing ratio, combustion, release energy. In this way, the combustion efficiency can be improved, and the purpose of fuel saving can be achieved, and the corresponding more powerful power can be obtained......
This technology also has a similar technology in aero engines, but the names of various aero engine companies in various countries are different, but the principle is the same, and the VVT technology of the car is managed and controlled by the computer, which requires a lot of data as a support, otherwise you don't know how to adjust it to make the power of the engine achieve the best effect.
In addition to these, there are many, many technologies, all related to databases, which are part of modern aero engine technology, and modern aero engines cannot play without it.
The reason why Ling Shizhe mentioned this is because he wants to make money, whether it is an aircraft or an aero engine, it needs a large amount of capital investment, but the government does not invest a penny in him, all the funds have to be raised by himself, the research and development cycle of the aero engine is very long, and the funds needed are in the sea, and it is obviously not possible to rely on Ambrera to give him blood transfusion, he must learn to make his own blood, aviation power system electronic equipment and software and hardware technology are the economic resources of Ambrera Aviation Power Department, The money earned from it is used as research and development funds for aero engines, forming a virtuous circle.
After listening to Ling Shizhe's story, everyone understood his vision for the future development of the aviation power department, but everyone still didn't understand why Ling Shizhe chose the T-30 engine as an experimental product.
Ling Shizhe himself knew that he was off topic, and without waiting for them to ask, he continued to explain: "Since Germany developed the world's first jet aircraft at the end of World War II, it marked that the world's aviation has entered the jet age, after the end of World War II, the United States and the Soviet Union got jet engine technology from Germany, and within a few years they made their own jet aircraft, such as MiG-15, F-84 Sabre, etc., and the engine at this time is called the first generation of jet engines.
In the sixties, the F-4 second-generation fighter began to equip the troops, and it used two J79-GE-17A axial turbojet engines produced by General Electric, which is called the second-generation engine, and the T-30 engine we introduced and the British Spey engine belong to the third generation engine, and the aero engine has entered the turbofan era since the third **, so the T-30 and the British Spey are also known as the first-generation turbofan engine.
In fact, since the United States began to develop the second-generation aero engine, it was found that although the second-generation engine is also turbojet technology, its technical difficulty far exceeds that of the first-generation turbojet power technology, and the production and procurement cost is much higher than that of the first-generation engine.
If you think about it, the cost of the second-generation turbojet alone is so high, so how high will the cost of the third-generation turbofan engine be? Therefore, some people began to put forward the idea of standardization and modularization, hoping to reduce the cost of engine development and production, that is, according to the domestic industrial system standards in the United States
Industrial standards and tolerance standards for the design and manufacture of aero engines, the specific approach is to use modern industrial production process control, six standard deviations (that is, the famous six sigma proposed by GE in the future), full quality control and other scientific management standards, to carry out comprehensive quality management of engine development and production, and then on this basis to develop a standard general core machine, with this core machine to develop a large push, medium thrust, civil and other engines, so as to expand the use of aero engines. It can also save costs to the greatest extent.
As soon as this kind of idea was put forward, it had a great impact in the United States, some people agreed with it and some people opposed it, and some people chose to wait and see, and the US government was also affected by this trend of thought, and many people suggested that the US government should act according to this line of thought, but there were also many opponents, and the reason of the opponents was that no one knew whether this theory was right or wrong, and if it was correct, it would be fine, but what if it was wrong? We have spent so much manpower, material and financial resources, aren't they all in vain? This is a heavy blow to American industry, so we oppose blindly making this idea a standard until we have proven the correctness of this theory.
Seeing that it is not a way to continue making trouble like this, and that continuing to make such a fuss will not only not solve the problem, but will damage the future industrial base of the United States, the US Government has made a decision: Since both sides are deadlocked, then simply do an experiment to test whether this set of theories is correct or not, and if it is correct, we will take this set of theories as the standard, and if it is wrong, then give up.
So the T-30 engine was born in this context, this is an experimental engine designed with a new concept, there are three main companies involved, and other companies are responsible for supporting them, these three companies are GE, Pratt & Whitney and Hockvich (M1 tank engine supplier), of which GE and Pratt & Whitney are the absolute main force, Hawker is just to play soy sauce, and the source of funds is the United States, GE, and Pratt & Whitney.
After five years of research and verification, the T-30 demonstrator was finally born in 1965, after various rigorous tests, it was proved that this theoretical idea is completely correct, so the United States aero engine R & D and manufacturing standards were born, this experiment has a profound impact on the future of the United States, but also affected Europe and the Soviet Union, have established their own aero engine industry standards, as for China, forget it, they have now entered a period of ten years of turmoil, I have long forgotten about this big event that affected the world.
The success of the development of the T-30 engine proves the correctness of the theory of the industrial system of large industrial standardization, but it is only to prove the correctness of this set of theoretical ideas. Oh, it's very sad, in 1986, Hokkevich was one of the three companies that participated in the experiment, turned the T-30 engine out of the warehouse, redesigned it on the basis of the T-30, and three years later launched the successor model of the T-30, the T-49 engine, The thrust-to-weight ratio reached 7.4, the performance is second only to GE's F110 engine, but it is a pity that the core engine of the T-49 engine always belongs to the third generation engine, and the F-110 belongs to the fourth generation engine, and the T-49 engine has little room for upgrade and improvement compared with the fourth generation engine, and there is no need to procure, so it was sentenced to death and permanently mothballed.
The reason why Ling Shizhe chose to introduce the T-30 engine is not only because of its technology, but also because of its ideas, this engine concentrates all the design ideas of the future engine of the United States, and the study and research of the T-30 engine is greatly conducive to China's future engine research and development on the right path, and the construction of detours is more important than simply obtaining technology.
Do you know how to design an engine correctly? There are so many indicators of aero engines and so high, do you know how to choose, do you know how to match, do you know why I want to design like this? You don't know, even if you are given a full set of technology for the F-119, you will not be able to become a big country in the aviation industry, because you will only copy and not develop, not to mention that the West will not give you advanced engine technology at all, everything can only rely on yourself.
The people in the room were silent for a long time, all the people were immersed in Ling Shizhe's words just now, he said that these Ling Zhigao, Wang Haiwen and others never thought about it, they just simply thought that as long as they obtained advanced engine technology, China would become one of the world's powers, but they never thought that compared to those so-called advanced technologies, the correct research and development theory is more important, the research and development ideas are wrong, everything is wrong, the ideas are right, everything is right, as for the various technical problems encountered on the road, Under the guidance of the correct theory, sooner or later one day will be overcome, compared with simple technical catch-up, Ling Shizhe's thinking is undoubtedly more forward-looking.
This is the same as China's red/color/leather/life, China's red/color/leather/life originated from the Soviet Union, and at the beginning, China's revolution/life center has always been centered on the urban working class, but they did not think that China's long-term industrial extreme backwardness, the number of working classes is pitiful, and the result is that the revolution/life/riot/uprising again and again have ended in failure, and finally Lao Mao proposed that the center of gravity of China's revolution should be placed in the vast countryside, not in the city. Needless to say, after the focus was placed on the rural areas, the unfavorable situation of the Communist Party and the Communist Party was completely reversed again and again, and the road became wider and wider, and finally won a comprehensive victory.
This is the role of ideas, only successful ideas will take you to the other side of success, wrong ideas will only take you to the end of failure, Ambrera company has never been engaged in aero engines before, now to engage in this industry, at the beginning to establish the right idea intuitive important, everything is difficult at the beginning, only to establish the right direction of thinking, the road will be wider and wider, the sky will be brighter and brighter.
Today Ling Shizhe brought them here, not so much to discuss as to brainwash them, how to develop in the future Ling Shizhe already has an account in his heart, looking for them to come over to blow the wind and brainwash is his fundamental purpose today, only if they recognize his thoughts, they will support him unreservedly in the future, with the support of this core team, Ling Shizhe believes that there will be no hurdle that cannot be overcome in the future.
Wang Haihua quietly looked at Ling Shizhe who was sitting on the chair and smoking, he didn't expect that this young man was actually proficient in the essence of the north's blowing wind and brainwashing, and today all their brains were washed by the young man in front of him, and in the face of this young man who couldn't see through, Wang Haihua didn't know what to say.
After some time, Alison broke the silence and said, "Boss, I already know what you think, so what should we do next?" ”