super robot clone

Chen Xindao: "Steel iron, the sound absorbing tile is made of rubber, can you handle it?"

The steel coin jumped out of Chen Xin's body in a flash, and said with a quack smile: "Old man, the material problem is easy to solve. Have you heard of metal rubber?"

"Metal rubber, what metal rubber?"

The steel coin flashed its electronic eyes and said: "The so-called metal rubber is actually a kind of homogeneous elastic porous substance. It uses a certain process to discharge a certain quality of stretched and spiral metal wires in an orderly manner." In the stamping (or rolling) mold, it is formed by cold stamping. Its raw material is metal wire, which has both the inherent characteristics of the selected metal and the elasticity of rubber, so it is called metal rubber. "

The steel hammer picked out a piece of stainless steel metal from the corner of the room, which was the leftover food residue it had eaten.

Then, its body suddenly melted like mercury, and then a bright silver wire was pulled out from the liquid, quickly solidified in a spiral shape and coiled into a ball. In less than a minute, the steel coin disappeared and replaced it is a metal ring.

Its skin is tan, and its appearance is a bit like an ordinary plastic packaging shell. It doesn't look much different from ordinary metal materials.

The steel coin shouted: "Old Dou, try your hand."

Chen Xin picked it up and held it gently with his hand. Except that it was a little heavier, it felt similar to ordinary rubber, but the elastic effect was really excellent.

Steel Tong said: "Old Dou, don't look at its inconspicuous appearance, it can be stretched 2 to 3 times under the action of external force, and then return to its original shape; when stretched, this material can still maintain its metal characteristics, with Conductive; it can also be as invulnerable as metal, whether it is put into aviation fuel or acetone liquid, it can be intact without being corroded, and it will not degrade structurally or chemically; it can It does not burn at a high temperature of 700 degrees Fahrenheit, and it can not change its name at a low temperature of -167 degrees Fahrenheit, and its structure is very stable."

Chen Xin felt very keenly that this kind of material is unusual. If it can really achieve the characteristics mentioned by Gang Yan, then the future aircraft can have wings that can flap like birds; the future aviation seats will be comfortable. Incomparable; even a TV can be made flat and soft, and can be folded up and put in a pocket...  

Chen Xin frowned and said, "Steel, this kind of material is used to make noise-absorbing tiles, isn't it too wasteful?"

The steel iron chuckled and said, "Who said you want to use it as a sound-absorbing tile?"

Chen Xin was slightly taken aback, and said: "If you don't make anechoic tiles, what should you do?"

The steel coin flashed its electronic eyes and said, "Artificial shark skin!"

Chen Xin was slightly taken aback, and asked, "Artificial shark skin?"

Gang Beng said: "Old Bean, you should know the principle of bionics. Long ago, bionicists were inspired by fish. The British imitated the skin of dolphins and produced a veneer material for speedboats. There are countless small rubber pillars in the middle of the rubber layer, and the gap is filled with a liquid. Stick it on the surface of the speedboat that touches the water. When the speedboat sails at high speed, the flow of water attached to the hull is smooth, which can increase the speed. "

The steel pendulum paused, and continued: "The skin of the great white shark is full of small vertical spines (fishermen can use shark skin to polish wood), and the planes of these small spines all follow the flow of the water. When the great white shark is moving at a high speed , the seawater close to the skin forms a laminar flow along these small thorns, which greatly reduces the resistance of the water. The so-called artificial shark skin can be produced by this principle! I have done simulation calculations, and artificial shark skin In addition to drag reduction, it also has an excellent noise reduction effect. It can be confirmed from software simulation that the vibration (noise) inside the hull is transmitted to the hull, through this layer of honeycomb heterogeneous interface (sound is in steel and rubber When the transmission speed is very different), most of them are absorbed, and part of them diffusely disappears in the water flow near the hull due to the function of small spines, and the effect is better than that of sound-absorbing tiles."

Chen Xin was dumbfounded when he heard it. If what Gang Yan said was true, then artificial shark skin is too important to the Chinese navy.

As we all know, the great function of a submarine is its concealment.

The cost of a "Kilo" class submarine is generally equivalent to that of a "Modern" class guided missile destroyer, which is 4 million U.S. dollars, but its firepower cannot be compared with that of a guided missile destroyer at all, and its value lies in its excellent concealment.

The propagation of sound in sea water is completely different from that in air, and the background noise in the ocean can reach 90 decibels. Kilo-class submarines approach this level of noise when submerged at economical speeds.It is praised by Western military experts as the "black hole" in the ocean.

我国的091型汉级攻击核潜艇和092夏级导弹核潜艇初期的潜航噪音，竟然高达160分贝和165分贝，经多年来的改进仍高达150和155分贝。

An American military expert once sarcastically said: "Pla's nuclear submarine departs from GZ and can be heard in Saigon, Vietnam."

新型的093级攻击核潜艇和094级弹道导弹核潜艇已分别降到125分贝和130分贝，但是与美国的“洛杉矶”级攻击核潜艇的120分贝、“海狼”以及“弗吉尼亚”级核潜艇的95分贝、“俄亥俄”级弹道导弹核潜艇的100分贝还是相距甚远。

For contemporary sonar technology, for every 15 decibel reduction in noise, the detection range will be reduced to 50%-70%.This shows the great significance of submarine mute technology.

If the Chinese Navy's 093-class attack nuclear submarine and 094 can be equipped with artificial shark skin, it will greatly improve China's strategic nuclear deterrence capability.

If China's 094 nuclear submarine departs from the SY base on Hn Island and then enters the Pacific Ocean through the Bashi Channel, it will be difficult for the U.S. Navy to monitor the traces of the Chinese Navy's strategic nuclear submarine.

Once a world-famous nuclear war breaks out, China even has the ability to launch a nuclear counterattack on the west coast of the United States.

Chen Xin said excitedly: "Gangzhu, this thing is too heaven-defying, no, you must raise the price, you have to prepare relevant materials first, and then just give some samples to the other party, I don't believe that the military is not tempted!!! Yes Now, is this thing easy to replace? How about the lifespan?"

Generally, like ordinary anechoic tiles, the most difficult thing is not the preparation of materials, but the real difficulty lies in how to cover the anechoic tiles on the surface of the steel body of the submarine.

According to Chen Xin's understanding, the anechoic tiles are usually first fixed with bolts, then filled with fillers, and then painted with a layer of paint. The process is very complicated.

Gang Bian said: "Don't worry, old man. Don't forget that the material of the artificial sharkskin is metal rubber, which has a good affinity with the surface of the steel body of the submarine. It is easy to stick together and not easy to fall off. In addition, Due to the electrical conductivity of the metal rubber, we can even control the state of the artificial shark skin under different sailing conditions through electric current, and reduce the sailing resistance and submarine noise as much as possible." (To be continued.)