Although the internal audits were basically all passed, Zhou Yan still came to the Qingyan Aviation Design Department the day after the self-audit to answer questions, check for leaks and fill in the gaps, in order to stabilize the morale of the military.
After staying in the company for a long time, in the afternoon, we started to prepare for the inspection.
Although many experts on the inspection team are academics and may not like face-saving projects, we still need to do what needs to be done, such as the banner at the gate, the LED billboard in front of the company's office building, and the office space for inspection.
Of course, there are also meals and small gifts for the expert group, which must be prepared in advance. They don’t need to cost too much, but you have to be careful.
Everything is ready for the upcoming expert group review.
On the day of the examination, Zhou Yan got up early, prepared breakfast for his wife's cousin, then put on formal clothes and went out.
Not long after Zhou Yan left, Feng Bei, wearing plush pajamas, tiptoed to the master bedroom and knocked on the door: "Sister-in-law, have you gotten up?"
"come in!"
After opening the door, Feng Bei peered into the room and then dragged her body in.
He closed the door and approached Qin Ruoshu mysteriously: "Sister-in-law, I just saw my brother in a suit and tie. I don't know why he was there..."
"You little beauty..." Qin Ruoshu, who was changing clothes, rolled her eyes, "Today your brother's company is reviewing..."
By the time the sisters sat down at the dinner table, Zhou Yan had already arrived at the company.
"Hey, it's rare for Mr. Zhou. The last time I saw you wearing a formal suit..." Xu Chongsheng, who was also wearing a formal suit, kept looking at Zhou Yan, "It was when you got married last year! The clothes were on, tsk..."
"Okay, there's still business to do today!"
Although it was the first time for the company to undergo a design review, Zhou Yan, Xu Chongsheng, and Qingyan Airlines executives all acted very relaxedly.
"Don't be too nervous. Our self-examination standards are strict, and the experts who come to review are all acquaintances of the bosses..."
At around eight o'clock in the morning, the convoy of design review expert groups arrived.
When the team leader got out of the car, Zhou Yan was confused: the expert team was led by his own mentor Liu Yiming.
"Teacher, why did you come here?"
"You brat, it's such a big deal, why don't I come over?"
Many experts who were familiar with Xu Chongsheng later breathed a sigh of relief when they saw that Liu Yiming and Zhou Yan knew each other: We all know each other, so it's easy to talk and ask questions without worrying about losing face.
After entering the factory, the expert team did not directly conduct an inspection, but held a meeting with Qingyan's senior management.
"Here, let me get a vaccination first..." Liu Yiming looked at Zhou Yan across from him with a smile, "Although everyone knows each other, and Zhou Yan is still my student, the review must still be based on the standard, and it cannot be lowered at all.
,If you have any questions, ask questions..."
After speaking, Liu Yiming looked at Zhou Yan.
"High standards, high requirements," Zhou Yan smiled, "Besides, I am also afraid of losing face as a teacher in the future, so I have to ask the teachers to be stricter and stricter in order to ensure the healthy growth of the company..."
Afterwards, the expert group moved to the company's large multi-functional conference hall, and the review officially began.
Liu Yiming, who needed to "avoid suspicion", just sat and watched after the review began. After staring for a while, he secretly breathed a sigh of relief and turned to glance at Zhou Yan opposite him: "Zhou Yan, your aircraft design, no matter the materials,
, or the thermal intensity margin is very large, do you have any ideas..."
"After finalizing the final shape, I plan to pull out the core machine unit and see if it can be changed to a worm shaft..."
"You boy, you are very ambitious..." Liu Yiming smiled happily.
Several officers from the General Assembly Department in the review team looked at each other, and the colonel officer leading the team stood up: "Academician Liu, President Zhou, and President Xu, can we talk alone?"
"Please..."
Zhou Yan and Xu Chongsheng took them to the chairman's reception room. After entering, they boiled water and made tea.
"Mr. Zhou, no need. I just have something I want to implement." As he said that, the colonel looked at Liu Yiming seriously, "Academician Liu, how feasible is it to replace the turboprop with a worm shaft?"
"There is actually no essential difference between a turboshaft and a turboprop," Liu Yiming sighed, "The turboshaft engines equipped with the helicopters we imported from the north are all designed with a rear power shaft. If we want to change from a turboprop, the turbine
The shaft needs to be disconnected from the combustion chamber.
But many helicopters from the beautiful country across the ocean, such as the CH-53, have a front-mounted worm shaft engine output shaft, and the structure is the same as a turboprop engine, but the size is slightly smaller..."
"That is to say..." The colonel thought for a moment, "If the turboprop is changed to a rear-mounted power shaft, it will be more difficult than a front-mounted power shaft, and it requires high-temperature performance of the material, right?"
"It can be said that," Liu Yiming thought for a while and replied, "Although the rear-mounted power shaft has relatively high material requirements, the engine startup time is short, the response is fast, and the torque is stable..."
"Mr. Zhou, Mr. Xu, if the turboprop is changed to a turboshaft, does your company have the corresponding material and technology reserves?"
This can be done.
"This..." Xu Chongsheng looked back at Zhou Yan, and when he saw him nodding, he nodded, "Yes, we have high-temperature resistant alloys prepared for turbofan engines..."
"Well then," the colonel officer thought for a moment, "I'll leave you with your contact information. If you make any progress in converting the turboprop to the worm shaft, please send me a message..."
After the colonel left, Liu Yiming picked up the tea with a smile, took a sip, and looked up at Zhou Yan: "Zhou Yan, in addition to the propeller core machine, your company should have other projects, right?"
"Teacher, how do you say this?" Zhou Yan's face was full of "baffled".
"You are still pretending to me," Liu Yiming smiled and glared at Zhou Yan, "With so many designers, I don't believe you only build a turboprop core machine."
"There is also a D-18T core machine," Zhou Yan replied with a smile, "This thing can easily cause trouble if word spreads..."
Hearing this, Liu Yiming knew that his students should have the original design data of the D-18T. After thinking about it, he continued to ask, "By the way, you are already in your second year of graduate school, right? It's time to prepare your master's thesis.
Do you have a good original title?”
"Local calculation of three-dimensional flow field in high-temperature turbine..."
Seeing Zhou Yan's confidence, Liu Yiming asked with a smile: "Looking at your attitude, you should have some ideas for your doctoral thesis?"
"Numerical calculation of the flow field and temperature field of a small bypass ratio and high thrust turbofan engine..." Zhou Yan chuckled, "To put an end to the end, it must be a little more complete..."
"You kid..." Liu Yiming smiled and shook his head, "By the way, I took a rough look at your design materials. There are a lot of materials that are only marked with code names. You plan to keep them for yourselves after processing!"
"To initially exercise our processing capabilities," Zhou Yan nodded, "Although most of the parts have been given away, we are still an aviation development company, and we need to have some senior technicians..."
"There is another question. Can the turboshaft be done sooner rather than later? There is a big gap in our country..." Liu Yiming sighed slightly. "The turbofan engine with large bypass ratio can be done as early as possible, whether it is a strategic transport aircraft."
, or domestic large aircraft, both can be used..."
After chatting for a while, Liu Yiming was about to get up and leave when he suddenly remembered something and looked back at Zhou Yan: "One more thing is that the aircraft innovation design competition held by your company last year was well received. Northwest Industries, Bingcheng Industries, Shuimu
, Jinling Industry also wants to participate, please see if it can be expanded..."
"That's no problem. Let the school organizing committee contact those schools and come up with a feasible plan..."
