Automotive Technology Concretely. A vehicle is made up of elementary parts (numbering in the tens of thousands) grouped into organs (a few thousand), which organize into systems (a few hundred). These are assembled on the vehicles individually or in sub-assemblies called modules. A car is divided into four major technological areas: bodywork. The powertrain. The chassis and the electronics (this last area being treated here within the first three).
The Body Automotive Technology
On the one hand, the bodywork includes the body or body-in-white, which constitutes the metallic structure of the car, and, on the other hand. The interior and exterior equipment that furnishes it.
The Body Of The Vehicle Automotive Technology
In most cars today, the body is self-supporting because it integrates the chassis. Which use to be separate, to form a monocoque structure. The bodywork comprises visible exterior parts or “skin” of the vehicle, which give it its shape as defined by design. And boxed interior features to receive the forces it is subject to a close. Generally, it consists of a lower part – carrying the powertrain. The front axle, the dashboard, the seats, the rear axle, the trunk and the tank – and an upper portion that supports the roof (or roof), the fixed windows, the doors and the bonnets (front bonnet. Rear bonnet or tailgate.
The Body Calculates To With Stand Automotive Technology
The body calculates the forces associate with repetitive or exceptional use and absorbs impact energy by deforming in an organized way to preserve the passenger compartment (fig. 1). The level of performance required in passive safety is such that it defines the dimensioning of the central longitudinal or transverse chords of the structure. Thus, the front side members located on either side of the engine must transmit, on each side, forces of more than 10 tones. It makes it possible to calculate the general shape and section of the spar, the thickness of its walls. And the nature of the steel used.
The rolling forces essential for the bending type. Under the mass occupants and the engine, and the torsion type. Under the stresses coming from the road via the trains. In endurance, the zones of the introduction of efforts and the nodes of assembly frames study meticulously. The body is calculate by the finite element method for the different load cases: shocks. Acoustic vibrations and road endurance to limit tests on multi-cylinder benches and especially rolling tests.
Thermosetting Plastics Are Use To Manufacture Skin Parts Or The Openings Of Medium Series Vehicles.
The trend is to use steel sheets with a high or very high elastic limit to reduce the thickness of the walls with equal performance. It complicates the stamp forming of parts and sometimes leads to the use of profiles or hot stamped features. Another lightning solution, at first glance simple, is the use of aluminum sheets and profiles., but its development remains limit due to the high cost of this material, factory assembly and after-sales repair problems. Plastics use instead which absorb small shocks without residual deformation. Finally. Recycle plastic is commonly use in crank cases or lower fairings because it is lighter and less expensive than sheet metal.
A coat of primer by dipping in cataphoresis (a technique today using water as a even. Which makes it possible to reduce pollution due to explosive organic solvents) and sealants and waxes for protection or sealing. The anti-corrosion protection safeguards resistance without perforations of the order of ten years thanks to sheets pre-protect by zinc silver-plating or high-performance shades. Deposit by robots in several layers. In huge dust-free workshops. The paint is the subject of research in terms of scratch ability and appearance (smartness, including microparticles to give it.
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