petak, 10. svibnja 2013.
50s and 60s of last century, when F1 became a real competition, the cars were made from everyday materials who were available. The situation today is much different and Formula 1 has become a testing ground for new materials and their properties.
In order to achieve the best results it is necessary to lead every part of the car and engine to the highest level, and one of the most important factors are the materials. The materials should have the lowest mass, and thus greater strength and durability time and that they were less affected by the performance of the car.
New rules and restrictions in F1 have made technical (mechanical) side in F1 even more interesting, for several reasons, and one of them is major costs of the construction, maintenance and so. A good balance is the most important in all of this, so we are looking for materials that oscillate less and that are able to withstand the mechanical and thermal efforts, and also have the lowest mass. The very essence of F1, which was based on pure power is changed, today and for some time the most important factors are the materials by the aerodynamics of the car, the engine only carries about 15% of merit, most chassis and thereafter expected tires that are crucial for the performances on the track. F1 is mostly based on advanced materials. The most important materials for the realization of these objectives are carbon fiber, aluminum and kevlar. Carbon fibers appeared in the eighties of the last century and soon became the basis for construction of F1 cars as they had an exemplary way of combinating light construction and exceptional strength, with a very broad spectrum when designing. Today, 75% of the car is made of carbon fiber and so the brakes where also used in the manufacture of carbon (or carbon brakes are very expensive and can consume up to 5 months to produce a single brake disc).
Why carbon fiber?
They are strong, waterproof, lightweight compared to conventional materials they require higher costs, but they last for a very long time. F1 cars are designed for a maximum load that is to speed up to 300 km / h and the use of ordinary materials would be difficult, the ability to achieve high performances, as well as excellent results. Surely you know the laws of physics, which is a lighter car has better acceleration and higher speeds achieved in less time. Materials in F1 must be selected to meet all the criteria, but reliability is the first place regardless of the performances (which sometimes does not do so, unfortunately). Carbon fibers are nearly perfect material for use in the preparation of composite materials. Due to its molecular structure with extremely high tensile strength, combined with epoxy resin composite material make substantial characteristics. The fibers are obtained special procedures at high temperatures and pressures, and they are produced fabrics. These fabrics have high tensile strength, as much as four times greater than steel.
The biggest mistake in explaining as carbon fiber is to emphasize that we use only to reduce weight or to look, which is not true.
Another of the essential material used in the F1 is kevlar. Kevlar is used when creating forks, headrest, shoulder blades. Otherwise Kevlar is an organic material that combines high strength with low weight. This material is five times lighter than steel, which means it can provide a lighter, more flexible and also more comfortable seat when protection unlike steel armor. One of the main factors why it is used in F1 is a high resistance to chemicals and fire. Among the essential materials include the aluminum of which probably know a lot more in relation to the above materials. Half the motor mechanism is made of aluminum, like cylinder heads, pistons and other mechanisms. With new casting technologies, and the development of improved material properties and the very weight of the same is reduced.
As technology progresses, the incremental improvements are not only in F1, but in the entire automotive industry.
It is increasingly being used as access to maximize what we already have, how to get from smaller resources more into technical field and in the economic part.
One of the important factors that will in the future play a role in the F1 is environment, and reducing emissions. Maybe with this F1 will lose some charm, but it certainly is a big step forward for civilization and only the preservation of nature, and so to ourselves.
When it comes to materials, and the very F1 must emphasize to us, to our field of engineering, which is after all the lights and magic of racing and fast cars and famous drivers play a crucial role together with engineers to achieve these same goals, and the very existence of such a sport that is today one of the best paid, as well most watched.