NovelBonte Chapter 189 Design of Composite Rotors
Chapter 189 Design of Composite Rotors
Chapter 189 Design of Composite Rotors
This call was made by Zhou Yuanliang, Zhao Zhiming's best friend in the original work unit.
During the phone call, Zhou Yuanliang first asked about Zhao Mingzhi's recent situation.
"Old Zhao, it has been almost two months since you joined Leihuo Technology Industrial Group."
"It's two days away from two months."
"You have really started the development of that transport helicopter now, haven't you?"
Zhao Mingzhi said proudly, "Of course, the design technical outline and general design drawing have come out, and now the specific design work is being carried out."
what!
So fast!
Zhou Yuanliang was dumbfounded.
He is also an expert in helicopter design and development. He knows the difficulty of developing a new helicopter. It is normal to spend ten or eight years from the beginning of pre-research to the successful development.
It will take at least two or three years to come up with the design technical outline and general design drawing, because before that, there will be feasibility analysis and pre-research of key technologies, etc., which will consume a lot of time.
"Old Zhao, don't joke with me, have you really released the design technical outline and general design drawing?"
"Of course it's true. How could I joke with you about such a big thing."
"Old Zhao, can you briefly tell me about your transport helicopter?"
Zhou Yuanliang was a little curious.
He knew that the LH1500 turboshaft engine of Leihuo Technology Industry Group was said to have an output power of more than 1500 kilowatts, and it was a proper third-generation turboshaft engine.
With such a good engine, the transport helicopter that goes with it should not be bad. He always thought it was a third-generation transport helicopter.
But now he doubts his deduction a bit. The design technical outline and general design drawing can be produced so quickly. It is estimated that it will not be the third-generation transport helicopter, and it is very likely to be the second-generation transport helicopter.
Because compared with the third-generation transport helicopter, the technical difficulty of the second-generation transport helicopter is much lower, so that it is possible to come up with the design technical outline and general design drawing of this transport helicopter so quickly.
Pity!
What a pity!
With such a good turboshaft engine, the transport helicopter developed with him should be the third-generation transport helicopter, not the second-generation transport helicopter.
Seeing that his good friend wanted to know about this helicopter, Zhao Zhiming did not shirk it, and simply introduced it.
what!
Zhou Yuanliang was completely stunned!
This is not a second-generation transport helicopter, but a proper third-generation transport helicopter, three and a half generations to be precise!
The overall performance is actually above the American Black Hawk!
Incredible!
After being stunned for a while, Zhou Yuanliang finally came to his senses, and said a little excitedly, "Old Zhao, I'll come to your place to see how you are."
Zhao Zhiming smiled, fully understanding what Zhou Yuanliang meant. He must have wanted to come and have a look at the transport helicopter under design.
He also knew that Zhou Yuanliang was leading a technical team to design and develop a new type of special-purpose armed helicopter, which was the third generation of armed helicopters, and the rotors used would be composite material rotors.
To judge whether a helicopter is a third-generation aircraft, one of the many criteria is the material of the rotor.
The first generation of helicopters generally used wooden rotors.
Second-generation helicopters generally use metal rotors.
The third-generation helicopters use composite rotors.
Zhou Yuanliang led the technical team to be responsible for the power system design of this special armed helicopter, including the design and development of composite material rotors.
The feasibility discussion of this project began two years before the Gulf War, and then pre-research was carried out. Now it is the pre-research stage of some key technologies.
It has been two or three years since the pre-research, but the progress is relatively slow, and it faces a series of technical problems, including the design and development of the composite rotor.
Zhao Mingzhi immediately agreed, "Okay, we haven't seen each other for a long time, after you come over, let's have a good drink or two."
Zhou Yuanliang was overjoyed, "Old Zhao, then it's settled. I'll come by train tomorrow."
It is not too far to take the train from them to Zhao Mingzhi's design office, only four or five hours by train.
Zhao Zhiming said, "Then it's settled, I'll pick you up at the train station then."
In the drawing room next to the office.
Lin Feng spread out a blank design drawing, and was carefully drawing the rotor design of the transport helicopter with a T-square and a pencil.
The rotor is undoubtedly a very critical and important part of the helicopter. It has a very high technical content, is difficult to design, and has an extremely demanding manufacturing process.
At present, there are no composite material rotors in China, and the best ones are metal material rotors. I heard that JDZ's helicopter design institute is already engaged in the design and development of composite material rotors, but it seems that the progress is slow, and there are a series of technical problems.
Here, Lin Feng does not have any technical problems.
The system has instilled all the detailed design drawings of this transport helicopter into Lin Feng's mind, as well as a complete set of very advanced manufacturing processes, assembly processes and so on.
Because of his god-level learning talent, Lin Feng has a relatively deep understanding of these things, as if these are his own things, rather than instilled in by the system.
Lin Feng only needs to draw the design drawings in his mind according to the gourd painting, such as the composite rotor design drawings he is currently drawing.
The rotor design drawing is not very complicated. In the afternoon, Lin Feng finished drawing the entire design drawing.
Putting down the pencil in his hand, Lin Feng checked it himself. There was nothing wrong with it. It was almost exactly the same as the rotor design provided by the system in his mind. Even the imitation of Song characters, the markings of each size were very standard.
perfect!
Lin Feng put away the design drawing of the rotor, looked at the time, spread out a blank design drawing on the drawing board, picked up the T-square and pencil, and started drawing the design drawing again.
This is the design drawing of the propeller hub.
The propeller hub is undoubtedly a very critical and important part on the helicopter, which requires not only light weight but also high structural strength.
In addition, its structure is also very complicated. When the helicopter is flying, it relies on it to bear the lift generated by the rotor, and it also relies on it to adjust the angle of the rotor, so as to realize the forward, backward, lateral flight and hovering of the helicopter.
Because of the complexity of this part, Lin Feng did not draw it until the next afternoon.
Provincial Railway Station.
Zhao Zhiming personally drove a brand new jeep from the design office to the train station, and was waiting not far from the exit.
The Helicopter Design Institute not only has a newly painted five-story design building, but also has two brand-new jeeps and three three-wheeled motorcycles, which are convenient for everyone's office.
"Old Zhou!"
After waiting for more than ten minutes, Zhao Mingzhi finally saw Zhou Yuanliang's figure, and immediately shouted and waved his right hand.
Zhou Yuanliang finally saw him, and walked over happily. The old friend met, and the two shook hands tightly.
"Come on, let's get in the car."
Zhao Mingzhi drove Zhou Yuanliang to his design office, and warmly invited him into his office.
When old friends met, of course there were endless things to talk about, and they also talked about special armed helicopters.
The military has strong requirements for dedicated armed helicopters, and several key technologies have been pre-researched several years ago.
Among them is the design and development of the composite material rotor, which is in charge of Zhou Yuanliang.
"Old Zhou, where's your composite rotor, how's the progress?"
Speaking of the composite rotor, Zhou Yuanliang sighed softly, "Hey, don't mention it, we are still facing a series of technical problems. I don't know what to do now. I don't know how long it will take to complete the pre-research."
Zhao Mingzhi reminded, "The military has a strong demand for special-purpose armed helicopters, and it won't be too long. It will be a matter of time before the official project is approved for research and development."
"Yeah, I know that, so I'm under a lot of pressure."
"Old Zhao, don't talk about me, how about talking about your transport helicopter?"
Zhao Mingzhi said, "It's okay to simply chat with you, but if you want to know something, I need to ask Mr. Lin for instructions."
Zhou Yuan nodded his head, expressing his understanding.
Because it involves technical confidentiality issues.
Zhao Mingzhi picked up the phone and called, and it was Ding Haixia from the group office who answered the phone.
"Director Zhao, the boss has already gone to your place and brought the design drawings. It is estimated that he will arrive at the design office in two to three 10 minutes."
"Okay, I know."
After hanging up the phone, Zhao Mingzhi said, "Old Zhou, it just so happens that our boss is on his way here, and he will be here in two or three ten minutes."
Hearing this, Zhou Yuanliang became a little bit looking forward to it.
He had heard that the LH1500 turboshaft engine was designed by a group of designers led by Lin Feng.
The model engineer of this turboshaft engine is Lin Feng, and the deputy model engineer is Fang Anping.
"Old Zhao, it is said that Mr. Lin has a high level of expertise in turboshaft engines. Is this the case?"
Zhao Mingzhi said, "It's far more than that. Our boss not only has a high technical level in turboshaft engines, but also has a very high technical level in helicopters."
Hearing this, Zhou Yuanliang was surprised for a while.
If Zhao Mingzhi hadn't said it himself, he really wouldn't believe it.
Noticing his old friend's reaction, Zhao Mingzhi smiled, "Old Zhou, I'll show you something."
After speaking, he took out the real color picture of this transport helicopter and spread it out on the big table. Zhou Yuanliang walked over immediately, his eyes were quickly attracted by the picture.
beautiful!
Zhou Yuanliang saw such a highly developed transport helicopter for the first time!
After carefully looking at it, Zhou Yuanliang said, "Old Zhao, this is the transport helicopter that you will design and develop."
"Yes, this is the helicopter."
Zhou Yuanliang said, "I didn't expect it, I really didn't expect it at all. The transport helicopter you are going to design and develop is not only excellent in overall performance, but also has such a beautiful appearance."
"Old Zhao, I really can't help it, I really want to have a deeper understanding right away."
Zhao Mingzhi raised his hand to check the time again, "Our boss should be here soon, as long as the boss allows, I will tell you further things related to this helicopter. There is no problem."
At this moment, Zhou Yuanliang hoped that Lin Feng would come over sooner.
About one or two ten minutes later, Lin Feng's jeep drove in through the gate and stopped in front of the design building.
Tang Long got out of the car first, and actively opened the rear door. After Lin Feng got out of the car, he brought the design drawings from the car, and then followed Lin Feng into the building.
"Hello, boss."
Zhao Zhiming had already greeted him at the door, and Zhou Yuanliang was standing beside him.
Lin Feng nodded, and when he saw Zhou Yuanliang, his eyes were full of questions.
Zhao Mingzhi immediately introduced, "Boss, this is my best friend and colleague Zhou Yuanliang for more than 20 years. Lao Zhou is a famous expert in helicopter design."
He is actually an expert in helicopter design.
With enthusiasm on his face, Lin Feng actively extended his right hand, "Expert Zhou, welcome to our Leihuo Helicopter Design Institute."
Zhou Yuanliang was a little flattered, and quickly held Lin Feng's right hand tightly with both hands, and said straight to the point, "Hello, Mr. Lin, I'm here this time not only to have a look at my old Zhao, but also to learn about your design and development. This transport helicopter."
To his surprise, Lin Feng didn't hesitate at all, and immediately agreed, "No problem, this helicopter is only properly kept secret in front of you."
what!
Actually knowledge is properly kept secret!
That is to say, in addition to the core and key technologies, there are some technologies that they can contact and understand.
The look of surprise on Zhou Yuanliang's face became even stronger.
In fact, he was already prepared to be rejected, because he knew that it was normal for such an advanced new helicopter to be kept strictly confidential.
This surprise is a little big!
Zhou Yuanliang quickly thanked, "Boss Lin, thank you very much, thank you very much."
Lin Feng nodded slightly, waved his hand and said, "Director Zhao, I have brought the design drawings of the rotor and propeller hub, and I have called all the designers above the supervisor, and I will tell you about the details of these two key components. design."
"Okay, okay, I'll go and notify right away."
What about Zhou Yuanliang?
Thought I heard it wrong.
He led the technical team in the design and development of the composite material rotor. Currently, there are many difficulties and encountered many technical difficulties.
Leihuo Technology Industrial Group has actually designed the rotor and propeller hub, Zhou Yuanliang boldly said, "Mr. Lin, can I listen in later?"
A well-known expert in helicopter design and a professor-level senior engineer, now he only wants to be an auditor.
Lin Feng nodded and said, "Although the design of composite rotor and propeller hub are key technologies, if you come from afar, I will break the row once. You can listen in and even take notes, but don't talk about it to the outside world. It's limited to you at most. Inside the helicopter station."
Regarding Zhou Yuanliang's helicopter station, Lin Feng felt that proper secrecy would be enough, and it was foreign countries that really needed to prevent leaks.
The domestic aviation industry system has a strict confidentiality system. If it is inside the system, it is safe. If the relevant technology flows out of the system, it is called a leak.
Zhou Yuanliang assured, "President Lin, don't worry, I am very clear about the confidentiality regulations, and I will not leak the relevant technology."
A few minutes later, more than a dozen people sat in the conference room.
They are all designers above the executive level, plus Zhao Mingzhi and Zhou Yuanliang.Because there are not many people, I did not go to the training room, but in a conference room.
Without Lin Feng's instructions, Tang Long took thumbtacks and nailed the design drawings of the rotor and propeller hubs to the wall with thumbtacks, and displayed them in front of everyone.
Lin Feng said loudly, "Today I will tell you about the design of the two key components, the rotor and the hub."
The conference room fell silent.
Everyone listened carefully and took notes carefully.
The most pleasant surprise should be Zhou Yuanliang, he said in his heart more than once, it turned out to be designed like this, oh, I see.
He is like a sponge absorbing water, crazily absorbing the design technology of the composite rotor, with a feeling of enlightenment.
He has led a technical team to design composite rotors for two or three years, and he has actually touched the threshold of certain technologies. After Lin Feng explained it this way, he understood.
After talking about the design of the rotor, Lin Feng talked about the design of the propeller hub, which lasted for more than an hour.
Finally finished speaking, Tang Long also took down the two design drawings from the wall, and Lin Feng handed them over to Zhao Zhiming.
"Director Zhao, I will give you these two design drawings."
Zhao Zhiming put them away like treasures, and expressed gratitude, "Boss, with these two design drawings, the difficulty of designing the power system of this transport helicopter has been reduced by at least half."
Lin Feng waved his hand and said, "Come on, let's sit in your office."
After talking for so long, his mouth was almost dry. Zhao Zhiming seemed to know this, and made hot tea as soon as he entered the office.
Everyone sat down on the sofa, and the content of the chat was of course related to the design of the helicopter.
Zhou Yuanliang said, "Boss Lin, listening to what you say is better than reading ten years of books. Some technical problems that bothered me have been solved."
Lin Feng said, "How's the progress of the design and development of the special armed helicopter for your design institute?"
Zhou Yuanliang said, "The project hasn't been approved yet. Now it's the pre-research stage of key technologies. Among these key technologies is the design and development of the composite material rotor that I'm in charge of."
He introduced the design and development of this special armed helicopter.
Lin Feng felt emotional in his heart.
It turns out that this future famous special armed helicopter is still facing so many technical problems.
Among them, the power system is facing a number of key technical problems, and the rotor with suitable materials is one of them, as well as the turboshaft engine.
Lin Feng suggested, "I don't think it is necessary to waste time and effort on the design and development of the turboshaft engine for this dedicated armed helicopter. We can directly use our LH1500 turboshaft engine."
Zhou Yuanliang said in surprise, "Boss Lin, is this really possible?"
Lin Feng said, "Of course."
Therefore, he introduced the turboshaft engine to Zhou Yuanliang in more detail.
Zhou Yuanliang said, "Boss Lin, I will convey your suggestion to the institute and suggest that this dedicated armed helicopter be powered by an LH1500 turboshaft engine."
Zhao Zhiming glanced at Lin Feng with great admiration, and thought in his heart, the boss is powerful, and he sees things far away.
After such a suggestion, not only the engine problem of this special armed helicopter is solved, but also the LH1500 turboshaft engine can be used in future special armed helicopters.
high!
The boss is really tall!
[-] words will be sent first, and [-] words will be sent up a little later.
(End of this chapter)