Читать книгу DUBINA 2021 ENG. Revolutionary technology - Anton Dubina - Страница 4

The car body is the most important constructive, most responsible, material-intensive and expensive part of the car. It makes up about half of the car in terms of weight, cost and manufacturing complexity. The body is the basis for the installation and fastening of all systems and mechanisms of the vehicle. The body ensures the safety of the vehicle. The body structure and its parameters have a serious impact on the performance properties that ensure the movement of the vehicle (maneuverability, stability, smoothness,), and on performance properties not related to vehicle movement (capacity, strength, durability, maintainability, suitability for loading and unloading). DUBINA EVO has a fiberglass monocoque body. He perceives all the loads that act on the car while driving. This means that all elements of the body, with the exception of doors and hatches, are load-bearing. The body support system allows you to reduce the weight of the vehicle, its overall height, lower the center of gravity and, therefore, increase its stability.

The supporting body is made of fiberglass.

The design of the monocoque body consists in the most rational distribution of material in each element, allowing the best use of the maximum possible load-bearing capacity of the material. In order to give the structure a clear and continuous shape, providing direct transfer of the load from the point of its application to the point at which the reaction occurs. The structure of the monocoque body must be rigid enough to allow precise control, be light enough to allow inertial loads and the loads caused by the oscillatory angular movement of the sprung parts about the vertical axis were small, to be strong and durable to withstand the cyclic road loads, the loads from the power plant, the driver and the passenger. Hence, it is clear that the structure of a car is assessed not by strength, but by rigidity, and the study of the state of the structure is associated with the study of its deformability rather than the stress state. Bending deflections in the middle of the vehicle span should not exceed 1.3 mm, and the deformations of the contour of door openings should not exceed 1.2 mm in the event of a load concentrated in the middle of the span equal to 6700 N. Fiberglass is not as rigid as steel or aluminum, therefore, reinforcing plates, brackets and stiffeners are used in the body structure. Fiberglass is a durable and lightweight material.