Chapter 117: Comprehensive noise 82.6 dB (the second update is coming)
But around this, the muffler of the air intake and outlet of the engine of the No. 389 minesweeper is still due to the lack of special rubber, and can only be barely realized with a metal structural frame.
Meng Jianye can really only sigh at this, because in terms of special rubber, it is worse than vermiculite slabs, and many things are blank, not to mention batch products, even if there are few trial products in the laboratory.
So Meng Jianye's ambition to conquer the sea of stars was once again pressed to the ground by the shortcomings of the materials, rubbing and rubbing.
However, fortunately, Professor Qin has realized the limited role of materials in the shipbuilding industry, and has begun to actively carry out activities, on the one hand, to offer advice to his superiors, hoping to increase the proportion of resources invested in basic disciplines, especially high-performance materials.
On the other hand, it is to establish a shipbuilding industry materials laboratory in the Han'e Shipyard, so as to cultivate talents in materials and carry out research on new materials.
At present, the shipbuilding industry materials laboratory of Han'e University has entered the preliminary preparatory stage, and the relevant approval documents have also been sent to the relevant departments in Beijing.
As for when he will be able to complete the procedure, Meng Jianye is still very optimistic, the contacts that Professor Qin has accumulated over the years are not given in vain, and he can get a lot of money by moving his mouth casually, not to mention that this handsome old guy also ran to the capital in person, who dares not to give face?
All in all, the entire No. 389 minesweeper is just short of the last propeller before it can be launched for sea trials, and Meng Jianye's return is just to complete the last "puzzle" of the No. 389 minesweeper!
……
"Left full rudder!"
As Peng Jun, the new commander of the No. 389 minesweeper, stood on the bridge command position and issued an order, the sailors operating the rudder not far away immediately repeated loudly: "Left full rudder!"
At the same time, the rudder in his hand was turned violently to the left, and the No. 389 minesweeper, which was moving smoothly, suddenly drew a beautiful left turning arc on the sea surface with the change of the steering gear.
Peng Jun raised the telescope in his hand, looked at the situation in the distance, and immediately issued a series of commands: "Get in the car, go full speed!"
"Get in the car and go full throttle!"
While repeating the command loudly on the console on the other side, the sailors on the console slowly pushed the power valve on the console to the top, and the Project 389 minesweeper, which had resumed its straight sailing, reached its maximum speed of 14 knots in a few moments.
According to the acceleration at full load in the past, the whole ship will be shaken by two 1100-horsepower D-80 diesel engines, but at this moment, the bridge where Peng Jun is located does not have the slightest discomfort caused by mechanical noise except for the feeling of waves and bumps at full speed.
Seeing this, Peng Jun finally showed a satisfied smile, and immediately shouted at the intercom in the boat: "Xiao Meng, do you have any results there?"
Meng Jianye, who was in the equipment compartment in the middle of the No. 389 minesweeper, was staring at a noise monitor at the moment, silently recording data, while at the same time, there were five technicians from the Endeavor Factory scattered in different locations of the No. 389 minesweeper, monitoring the noise situation in various parts of the No. 389 minesweeper.
Hearing the sound from the intercom next to him, Meng Jianye quickly picked up the noise values that had been summarized from other places before, as well as the comprehensive noise index that he had just sorted out, and shouted at the intercom: "82.6 decibels, comprehensive noise 82.6 decibels!"
Hearing this result, Peng Jun clenched his fist and slammed twice on the panel in front of him excitedly, and the noise level has been maintained between 80 and 83 decibels for half a month of sea trials, which is enough to prove that the retrofit program of noise reduction and shock absorption of Endeavor Factory is very successful.
Perhaps a noise of about 80 decibels on land will make people feel very noisy, but at sea, the background noise of the waves is about 70 or 80 decibels, which is still below the level 3 sea state, and if the sea state is above level 4, the background noise value will only be higher.
Therefore, the noise index of about 80 decibel of the No. 389 minesweeper is not only not high, but it will make people feel terriblely quiet.
"All the tests are basically completed, you help me sign it, and I will sort it out when I dock at the port later, and then start the delivery procedures!"
Before Peng Jun's excitement passed, Meng Jianye had already come to the bridge from the cabin and handed Peng Jun a folder.
From the launch of the No. 389 minesweeper to the present, Peng Jun and Meng Jianye have been working together for more than half a month, and they have gradually understood the unknown side of this young man.
To put it bluntly, he is a big foodie.
Especially for high-value seafood, he basically does not refuse to come, but his level of catching the sea is very poor, so he always knocks you on a few seafood feasts with what he is good at.
Peng Jun was a little uncomfortable at first, and even felt that Meng Jianye was shameless in doing this, but after being knocked a few times, Peng Jun found that the things Meng Jianye was good at were all good things that he wanted to know but had no way of knowing.
After knowing this truth, Peng Jun simply didn't wait for Meng Jianye to come to knock, and simply took the initiative to find a knock, isn't it just a seafood feast, buddy has more than 70 officers and soldiers, as long as you are not afraid of belly bursting, it will definitely be enough!
So in the past half a month, Peng Jun has really played good things from Meng Jianye.
Without looking at Meng Jianye holding the test materials to him to sign, Peng Jun did not hesitate to pick up the pen and sign his name on it, and then said with a smile: "Where did I prepare sea shrimp, abalone and sea crab tonight, as well as twenty years of Xifeng wine, Huang Jianguo has been thinking about it for two years, and I am not willing to give him a drink, how about it?
"That's a good dare, but what Lao Huang remembers, let's drink it, aren't you afraid that he will come back to find you after the account?" Meng Jianye can be said to have come to this without refusal, abalone or something is his favorite, but he has to make fun of it.
"Okay, the old yellow family went to the capital to study, and if he came out again, he would become a phoenix, maybe he would have to be robbed by other fleets before he finished his business, and then I didn't ask him for a drink, even if it was polite, he still had the face to find the account?"
Peng Jun was unconvinced, the two of them had applied for the chief engineer training class together, but half a month ago, Peng Jun suddenly received an order from his superiors to serve as the captain of the modified No. 389 minesweeper, and had to withdraw from the chief engineer training class, but Huang Jianguo was given the opportunity to study in Beijing with excellent results in the internal assessment not long after.
Peng Jun was very unconvinced by this, and felt that if he was not transferred to serve as the captain, the internal assessment would definitely not be worse than Huang Jianguo.
Meng Jianye didn't care who was convinced or who was not convinced, since Peng Jun was not afraid, he naturally walked, but just as the two were discussing whether the seafood should be steamed or braised in the evening, a signal soldier hurriedly ran over and handed Peng Jun a telegram.
Peng Jun didn't pay much attention to it at first, but when he unfolded the telegram, his originally smiling face suddenly became solemn, and he immediately closed the telegram and apologized to Meng Jianye: "Xiao Meng, it may not work this time, we suddenly received an urgent task on No. 389, and we want to go to Beibu Gulf immediately!"