webnovelfull Chapter 418 3D fluid field! Coupled simulation analysis!
Chapter 418 3D fluid field! Coupled simulation analysis!
Li Yang's arrival was like a shot of stimulant to Tang Xinghai and the others.
Everyone's enthusiasm has been aroused!
They followed Li Yang's instructions, divided the work, took responsibility for their own tasks, and cooperated fully.
Time passed by minute by minute.
It lasts from about 12 noon to 5 pm.
Through the joint efforts of many workers.
at last……
The magnetic circuit of the multi-phase rectifier synchronous generator is out!
Looking at the simulated stable magnetic circuit diagram on the screen, the researchers watching exclaimed.
"Out!"
"The magnetic circuit is stable and the simulation diagram is clear..."
"The data fluctuations are within a reasonable range... Engineer Li is amazing!"
"..."
Under the leadership of Tang Xinghai, they had tried hundreds of times before, and the effect they wanted to achieve was exactly like the current one.
But unfortunately, they all ended in failure.
Unexpectedly, as soon as Li Yang arrived, he simply showed off his skills and solved the problem that had troubled us for several days!
After Tang Xinghai finished the task at hand, he came to the display screen.
Looking at the simulation diagram of the magnetic circuit showing uniformly distributed motion in the shape of a 'sin' curve, I couldn't help but sigh deeply.
"Li's method not only accurately depicts the magnetic circuit transformation inside the synchronous motor."
"At the same time, the data of magnetic circuit conversion is also very clear, which reduces a lot of workload for subsequent program settings!"
Having solved this problem, he breathed a sigh of relief.
He was the first person in charge of the coast guard ship project when Li Yang was away.
Tang Xinghai’s task is not light.
Not only do I have to coordinate the work progress of each R&D and construction team, but sometimes I also have to personally solve the problems encountered by each team.
Many times, he actually couldn't get it done immediately and often had to rely on the booklet that Li Yang had left behind.
Refer to the booklet and solve the problems you encounter.
But even so.
The construction process is not always smooth sailing. Sometimes a screw thread is not in place, which may cause a component to make no progress for a long time.
However, problems like today's inability to calculate magnetic circuits are already considered relatively large.
Otherwise, Tang Xinghai wouldn't have invited Li Yang to come here in person. It was really something they couldn't solve...
Li Yang smiled slightly, walked forward, looked at the simulation diagram on the display, then simply modified a few parameters, observed for a few minutes, and gave instructions.
"The simulation diagram is stable, and the results of the magnetic circuit are calculated."
"Based on the direction of the magnetic circuit, there is no problem with the operation of the rectifier motor, so we can continue."
Li Yang ignored the admiring looks of many researchers, who were like fans seeing their idols, and asked instead.
"Any other questions?"
"Take this opportunity to solve any other problems at once!"
Come to your senses.
Researchers from dozens of groups took out their notebooks one after another and checked some of the problems they had encountered in their previous research to see if there were any worth asking Li Yang to solve.
Soon.
The team leader responsible for the heat dissipation module raised his hand.
See this.
Li Yang gestured with his hand.
"you say……"
The team leader looked at the small notebook in his hand and said.
"Engineer Li, when we were designing the flow resistance of the electrolysis air path and the radial direction of the rotor pinion shaft, we found that although the heat dissipation has reached the standard, we still feel that there is still some room for improvement."
"It's just that we..."
He put away the notebook and an embarrassed expression appeared on his face.
I have clearly reached the standard, but just because I feel there is room for improvement, I still want to go one step further.
However, the strength of myself and my team members is not enough to support them.
After the team leader raised his hand and asked this question, he regretted it for a moment.
This is so embarrassing. I can't show off and I'm afraid I will be scolded by Mr. Li.
If you don't have the ability, but still want to learn from others to strive for excellence, you are asking for trouble...
Li Yang didn't know what the other party was thinking. After hearing this question, he thought for a while and then spoke.
"Your judgment is correct, and you can indeed go one step further while meeting the standards."
The team leader and the researchers in the group were stunned for a moment, then filled with ecstasy.
asked hurriedly.
"Mr. Li, how can we achieve this?"
Li Yang told the story slowly.
"Through the three-dimensional fluid field temperature field and coupled simulation analysis, the electrolysis air path flow resistance matching design and the rotor pinion shaft radial mixed ventilation heat dissipation method can be realized!"
Without waiting for them to raise their hands to ask more questions, Li Yang continued.
"Three-dimensional fluid field analysis can be performed using computational fluid dynamics (CFD) methods."
"The CFD method is based on the continuous medium assumption. It discretizes the fluid analysis problem into a finite volume or finite element numerical calculation problem, and solves the difference equations to obtain the numerical solution of the flow field."
“In addition, the CFD method can also be used to simulate the movement and flow field changes of the airflow when the motor is working, as well as the fluid flow in the cooling system, to understand the fluid characteristics and thermal characteristics of the motor.”
"Finally, finite element method can be used to simulate the temperature field."
"The finite element method is a computer-aided engineering analysis method that discretizes the analytical solution domain into a finite number of elements, establishes an appropriate mathematical model on each element, and solves the algebraic equations to obtain the numerical solution of the temperature field..."
"This is basically the process. When the time comes for actual operation, we will make flexible adjustments based on real-time data."
After Li Yang finished speaking, pages of densely packed text appeared on the record books in the hands of the researchers present.
After listening to Li Yang's analysis, the team leader pondered for a long time, calculated the cost-effectiveness, and then he said with sudden enlightenment.
"According to the solution proposed by Engineer Li, the difficult problems of rotor heat dissipation and system integration optimization design of large-capacity multi-phase rectifier synchronous generators can indeed be solved."
He clenched his fists, his face showing uncontrollable excitement.
This way.
The heat dissipation performance of the synchronous rectification engine will be greatly improved.
The positive result brought about by this is.
The performance of the entire coast guard ship will change significantly.
Whether it is the transmission efficiency of the entire ship, the sailing speed of the coast guard ship, or the operating efficiency of defensive equipment such as naval guns, the operating efficiency will also be greatly improved.
After answering the question raised by the team leader, Li Yang solved several problems for several other team members who raised their hands to ask questions.
Seeing that everyone looked unsatisfied, Tang Xinghai hurriedly stopped those who were about to ask questions and said in a pretended angry tone.
"Okay, that's the end of it, isn't it?"
"Engineer Li hasn't rested for half a minute since he came here today, and he hasn't even had lunch."
"Hurry up and disperse. Engineer Li is not leaving right away. You will have plenty of opportunities to ask your questions!"
When the researchers heard this, instead of getting angry, they urged them forward with concern.
"Oh, yes, yes! We are too impatient. Engineer Li, please go and take a rest first!"
"If Mr. Tang hadn't told me, I would have almost forgotten that I didn't have lunch."
"Mr. Li, don't be too tired. You've been traveling all the way and have been in the workshop for so long. You should take a rest first and then talk about other issues!"
"..."
Li Yang had a smile on his face and was moved in his heart.
to be frank.
He didn't feel very tired, but the researchers' heartfelt concern still made him feel extremely warm.
Did not reject everyone's kindness.
Li Yang and Tang Xinghai went to the cafeteria to eat together...