The three-day deadline passed in the blink of an eye. Liu Li, Zhou Wei, and Sun Mei gathered again in the small conference room of the theory group, their faces showing the fatigue of staying up all night, but their eyes gleaming with an irrepressible excitement.
The table was covered with draft paper—Zhou Wei's simplified theoretical calculations, densely packed with formulas that led to an encouraging conclusion: Under an ideal model, the online dynamic balancing device can theoretically effectively suppress vibrations within a specific frequency range, and is particularly effective in solving the "dynamic imbalance" caused by thermal deformation and changes in support stiffness at high speeds.
Before Sun Mei lay her evaluation report on the old eddy current sensor. The conclusion was that its accuracy and response speed were indeed worrying, but it was barely feasible for verifying the most basic question of "whether it works or not." She also drew an extremely rudimentary sketch of a "homemade" improvement method that used the lever principle to amplify the sensor signal.
Liu Li then presented preliminary structural diagrams of her conceived "balanced cavity" and "electromagnetically driven small mass block." She simplified the structure as much as possible, and chose the relatively easy-to-implement electromagnet attraction as the driving method. Although crude, the principle was sound.
"This is all the results we have achieved in the past three days," Liu Li said, taking a deep breath as she organized several documents. "Theoretically, it is expected to solve some dynamic vibration problems. There are preliminary, low-cost implementation paths for sensors and driving methods, but it is still a long way from practical application, and the risks and uncertainties are extremely high."
Zhou Wei added, "Team Leader Chen, this is just a possibility. It's like feeling your way across a river by touching the stones. Right now, we can only say that there might be a path on the other side, but we have no idea whether the stones in the river are stable or how deep the water is."
Sun Mei also frankly stated: "Under the current conditions, we can only build a very basic principle verification rig at most, and many performance indicators cannot be guaranteed."
With trepidation, the three submitted their far from mature, and even somewhat “shabby”, research materials to team leader Chen Siyuan.
Team Leader Chen examined the documents very carefully, flipping through them almost page by page, his finger lingering for a moment on certain key data and structural sketches. His face remained expressionless, revealing neither joy nor anger.
The office was so quiet that you could hear the distant roar of machines from the workshop outside the window.
After a long while, Team Leader Chen put down the last piece of paper, looked up, and his gaze swept over the three people before finally settling on Liu Li's face.
“Arguing won’t solve anything.” He spoke slowly, his voice not loud, but carrying an undeniable weight. “If we keep going in circles within the existing framework, we may never find a way out.”
He picked up Zhou Wei's theoretical calculation draft and shook it slightly: "This line of thinking goes outside the box. The risks are huge; there are many difficulties. But," he changed his tone and his voice suddenly became firm, "it points to a problem that we have previously overlooked, but which may be the most critical one—real-time control of dynamic vibration."
"I agree to establish a sub-project group for the 'Online Dynamic Balancing Device for Main Spindle'," Group Leader Chen declared decisively. "Liu Li, you will serve as the group leader and be fully responsible. Zhou Wei and Sun Mei will be core members, respectively responsible for theoretical modeling and control algorithms, and sensors and testing systems. I will coordinate the minimum required resources. Other members' non-urgent tasks can be adjusted appropriately, with priority given to supporting you."
This decision meant that, given the already strained project resources, a portion had to be allocated to this new direction with an uncertain future, one that many even considered "foolish." The pressure instantly shifted onto Liu Li and her team.
“Team Leader Chen, this…” Liu Li did not expect Team Leader Chen to be so decisive, and even gave her the responsibilities of a team leader.
"Stop with the nonsense," Team Leader Chen interrupted her, his eyes sharp. "You chose this path, and I approved it. Now, take your 'rough' ideas and make it 'not rough.' What I want to see isn't a perfect solution, but tangible progress. Use results to shut up those who have doubts."
He offered no way out, but instead gave the most valuable trust and authorization in the face of adversity.
As Liu Li left Team Leader Chen's office, she felt a thin layer of sweat on her back, but a fire was ignited in her chest. She knew that from now on, she and her team had to do everything in their power to prove that this seemingly absurd path could truly lead to the solution.
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