Aircraft tires are not big, why can they bear so much weight on the fuselage?

Aircraft tires are not big, why can they bear so much weight on the fuselage?

There are a lot of mysteries about airplanes, and the most obvious thing that people question is its tires, because we all know that airplanes are made of steel, and his weight will be as high as 300 tons, and such a huge plane is only supported by 6 sets of tires, and these 6 groups of tires should be 12, that is, each tire has to bear a weight of 25 tons, which makes many people question.

andTires for airplanesThere are other mysteries, that is, when he is flying in the air, the environment is more than minus 60 degrees, but when he suddenly lands on the ground and rolls, the temperature will suddenly increase to more than 150 degrees because of friction, and at this timeTo withstand the weight of the aircraft and the friction of the ground, it can be said that the load is very strong

Speaking of tires, people often associate common car tires, and also the structure of car tires, because car tires run on the ground all day long, and bear weight, so it is a very wear-resistant tire, its structure adds a lot of carbon black and zinc oxide, because these substances can change the properties of rubber and increase wear resistance. However, the structure of the aircraft is fundamentally different from itThere is no zinc oxide and black carbon in aircraft tires, but there are a lot of silane coupling agents and p-phenylenediamine antioxidants, etc., so its performance is completely different from that of automobile tires

Both the wear resistance and tensile force of tires are much higher than those of car tires, which is why aircraft tires are not big, but they can bear the weight of the fuselageAnd in order to ensure the safety of the aircraft and passengers in the process of use, after each aircraft takes off and lands 250 times, there will be professionals to maintain and repair these tires, and they can only continue to be used after passing the test.

Made of special materials, after each aircraft runs 250 flights, the airline will arrange professional maintenance personnel to overhaul and maintain these tires.

Because its tire is actually a triangular tire, which can play a good supporting role.

Because the tires of the aircraft are of good quality and are able to withstand a certain weight.

Mainly because of the use of special materials, as well as regular maintenance.

The tires of the aircraft are generally used to assist in landing, but they do not bear its weight.

Because the materials used to make aircraft tires are all very good materials.

Maybe it's a clever match, maybe it's their quality!

Why can the "tires" of the aircraft bear the huge weight of the fuselage? The real reason is little known.

It should be made of specific materials, don't look at it small.

When the plane descends, the striking force is very large, and the aircraft before landing are the two main landing gears that land for the first time, using the landing gear and tires to transfer the impact to the fuselage. The tires of the plane cannot be very large, and if they are large, they cannot land many points. Once the tread pressure is uneven, the eccentric force generated by the large tires is very large.

This can lead to an imbalance of the aircraft when landing or taking off.

<>First of all, the load capacity of aircraft tires must be able to bear the maximum weight of the aircraft, and it must also face high-speed impact during take-off and landing, high temperatures. The buffer between the weight of the aircraft and the runway should be fully mounted on the wheels, excluding the hydraulic buffer, and the tire weight should be greater than the weight of the aircraft. If the descent speed of the airliner is too high when landing, then the tires will not be able to withstand it, and it is likely to be a detonator.

This is because there is a qualitative difference between aircraft tires and car tires, large airliners usually have about ten tires, small aircraft usually have six tires, and fighter jets have more than three. Aircraft rubber is different from car tires, its wheels are made of magnesium-zinc alloy, which can be said to be very expensive, aircraft wheels can carry the cost of BMW, while car car car Jeongju wheels are made of alloy steel. Unlike our ordinary car tires, the tires of airplanes seem to be so small compared to large fuselages that most airplanes do not have many tires, like some small airliners, only 6 tires, so few, why can such a heavy fuselage be maintained?

Why aren't these tires**?

It can help the tire resist greater tension, and the strength of the tire also depends mainly on the layer of fabric under the tread. Still, news about airliners** is not so uncommon, but in most cases it is due to insufficient tire pressure, which provides safety for large A380 airliners, such as passengers with more than 20 tires, one of which is broken and the other comes off.

Because when the plane lands, washing the landing gear and leaking tires will transfer the impact force to the fuselage, so that when the plane lands, the impact force will not cause the aircraft to lose balance; The keel of the aircraft tire is made of magnesium-zinc alloy, the cost is very high, and there is a layer of fabric under the tire of the aircraft, which can well increase the resistance of the tire to return and delay, so that the plane will not take off or land, due to friction and cause a puncture.

Aircraft tires are generally made of tubeless high-pressure tires, and the inside of the tires is filled with nitrogen with good stability. The surface of the Chang Hunger tire is made of special high-temperature resistant glued steel wire. Learned.

Because its tires are different from ordinary car tires, it is made of more expensive magnesium-zinc alloy, so its bearing capacity is greater than that of normal tires; They used the principle of a shock absorber to construct the tire, and it was made of stronger and more durable material than normal materials.

First of all, the material of the aircraft tire is composed of rubber nylon wire and steel wire composite, and it is not solid, its structure is made of special radial knotted silver, which will make the tread of the tire more tight, very wear-resistant and ultra-high temperature resistant.

The importance of aircraft tires can be seen from this, the occurrence of punctures has a great impact on flight safety, in addition to causing the aircraft to deviate from the original route during take-off and landing, punctures can also produce strong air currents and debris, which can lead to more serious accidents. Before each aircraft tire can be put into service, it must pass a series of extremely rigorous inspections, such as scorching heat, foreign body damage tests on the runway, weights of up to 340 tons, and a maximum take-off speed of more than 150 miles per hour.

Unlike car tires, aircraft tires are only used when taxiing, taking off, and landing. Aircraft tires are designed to be small and lightweight, making them best suited for flying and also saving fuel consumption. The tread is made of synthetic rubber to improve the durability and impact resistance of the tire.

The ply layer is the main part of the tire stress; The side wall is to avoid the damage and exposure of the ply layer, which mainly plays a protective role; The bead is designed to fit the rim.

This is determined by design, we know that aircraft tires, is also a special form, he is a special aviation tire, this tire is also designed to bear such a large weight, at the same time, if our contact surface is too large, the friction between the ground and the bearing will increase, which is not conducive to the acceleration of the aircraft in the take-off phase. Many people are skeptical, and we also know that the fuselage of the plane crashed into the ground at a speed of hundreds of kilometers per hour, and he had hundreds of thousands of tons, and the weight was very terrible, so the force on the mammoths must be very large at this time, so the accuracy of the tires must be high, otherwise it is not safe. Aircraft tires are designed to be small and lightweight, which is best for flying and saves fuel consumption.

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Although aircraft tires are small in size, they are made of a very special material that can resist strong impact forces and be of high quality.

In fact, if the aircraft is designed with larger tires, its load-bearing capacity will naturally be stronger, but because tires are also part of the take-off weight of the aircraft, in order to relieve the take-off pressure of the aircraft, and at the same time make it better fuel-efficient, countries will shout that the aircraft tires may be designed to be very small. Lajing.

Aviation tires are like the feet of an airplane, the only part that touches the aircraft during take-off, landing, and taxiing. The rubber surface of the aircraft tire is made of special material glued steel wire, with a thickness of about 20 mm, and it reaches the standard after 24 hours under the harsh conditions of -40 and 71 or more. It has high strength, the valve is sharp and short, and the air intake is unobstructed to prevent leakage.

Many people know that the power of the tire ** is basically the same as the power of the grenade, and most of the reasons for the tire ** are that the impact force generated by the high-pressure impact of the tire exceeds the bearing capacity of the tire. Then the diameter of aircraft tires is mostly in meters, and there are not many of them. How can such a small tire withstand the huge weight of an airplane?

What is the reason why aircraft tires do not blow out?

This is mainly related to the material from which the tires are made and the gases filled inside, and aircraft tires are generally the choice. Special high-strength synthetic rubber, they are very resistant, and the tread of the tire is also woven with a special nylon rope and reinforced aluminum steel alloy. Each aircraft tire can carry about 38 tons, while a passenger plane has about 14 to 22 tires, which are fully capable of supporting the weight of an aircraft.

At the same time, these tires are very wear-resistant, and they can complete 500 takeoffs and landings. Best of all, these tires only need to be re-covered with a layer of rubber before they can be used again, and can be retread a total of seven times. In addition to the quality of the tire itself, the gas inside is also very special, at a very low temperature, oxygen can condense into ice in the tire, although this requires minus 217 degrees Celsius, but no one knows what the plane will encounter in the high altitude, and in the process of landing, the friction between the tire and the ground will also produce high temperature, if the tire is filled with oxygen, then it is possible to produce ** at high temperature, so the nitrogen gas filled in the aircraft tire will not react with the rubber made of the tire, It doesn't leak through rubber like oxygen, so nitrogen is the best choice.

According to calculations, aircraft tires are inflated twice as much as truck tires and six times as much as an average car. This is because the higher the pressure, the stronger the tire will be and the more weight it can hold. And the tires of the aircraft don't turn when they first touch the ground, they just rub and slide.

When the speed of the plane slows down to a certain point, the tires start to spin, which is why there is always a large cloud of smoke behind the tires when the plane lands. So the stripes on aircraft tires are completely different from ordinary tires, they only have deep grooves, and there are no such patterns as ordinary tires. It's just that on a rainy day, such lines are very easy to cause the plane to slip.

But don't worry, because the runways of the airport are equipped with special grooves to drain water and increase friction.

The reasons are:1The tire bracket of the aircraft is made of an extremely strong magnesium-aluminum alloy; 2.Aircraft tires and brackets are equipped with a shock absorption system to cushion the impact of huge weights; 3.Aircraft tires are filled with nitrogen, which distributes the pressure more effectively than air.

The small tires of the aircraft can bear such a large weight, mainly because the material of the tires is zinc-magnesium synthetic, and the aircraft has a shock absorption system, which can effectively reduce the pressure on the aircraft.

When the plane lands, all the mass will be distributed among several tires, which is why it will bear such a large weight.

The tires of the aircraft are made of rubber and early coarse steel wire nylon, which are arranged very tightly in the structure, and this kind of closed words have very strong endurance.

Aircraft tires have nitrogen in them, which can be well prevented, and the materials used are also very strong.

It is because the action point is not concentrated. Most of them are scattered all over the place, so the force is very uniform and can withstand a lot of pressure.

There is only one layer of aircraft tires, which are rushed with nitrogen (to prevent **), and our cars, the tires of the aircraft also need a certain air pressure, and the general route works, and the air pressure must be measured every day, if it is not enough, it needs to be replenished in timeIt is necessary to control the air pressure within the range required by the aircraft manual, and only in this way can maximum safety be maintained. The tires of the airplane can't be big, and if they are big, they can't be grounded more. Once the tire pressure is uneven, the eccentricity of the large tire will be severe.

This can cause an imbalance in the event of landing or take-off.

The bearing capacity of the tire has little to do with the diameter size, mainly depends on the warp and weft strength of the tire. As for why aircraft tires are not big, the main reason is that the aircraft should be stored in the body when flying, and will not take up too much valuable body space. In fact, aircraft tires are not more difficult to manufacture than car tires, and China's Air Force aviation tires have always been self-sufficient.

The first link in the normal use of the aircraft is to take off, and the test at this time is the bearing capacity of the tires and the ability to resist pressure, after all, most of the weight of fighters starts at dozens of tons.

Don't look at the A380 with so many tires, but you have to know that the maximum take-off weight of the A380 can reach 560 tons, which means that the average pressure on each tire is as high as 25 tons! Aircraft tires also need to be able to withstand the high temperatures generated by high-speed friction during take-off and landing, so aircraft tires are certainly much stronger than regular car tires. Therefore, at such a high weight, it is necessary to withstand so much pressure with small wheels.

Depending on the tonnage of the aircraft, the number of wheels under the main landing gear is different. The tonnage is small, and it is true that there are only 3 wheels. For large tonnage, there may be two wheels from the front, and there can be many wheels under the main lift, for example, the A380 has 3 sets of wheels from the main lift.

When an aircraft takes off and lands, it relies on three sets of tires under the landing gear to support the entire huge weight. One might think that in order to ensure that high-strength aircraft tires are solid, in fact aircraft tires are actually inflated with car tires, and aircraft tires are not regular tires.