Diseño y construcción de un spoiler y un alerón en fibra natural para un vehículo de competencia fórmula “SAE” de la carrera de ingeniería automotriz en la ESPOCH.

Abstract

This work degree was conducted in order to design and build the aerodynamic elements of the vehicle of Formula SAE racing, by using compound material of woven cabuya fibre, since this material does not produce any pollution, it is renewable and it is easy to find it throughout the inter-Andean corridor. Both, Solid Works and Ansys 16.0 were the software tools used for the design and simulation of the aileron and spoiler, three prototypes for the aerodynamic elements, NACA profile 6412, NACA 4412 and NACA profile 5212, then, the simulation was carried out, from which it was found that the profile providing the best efficiency was the NACA profile 5212 with a fineness of 0,995. Once the profile was chosen its construction took place; it was applied the manual stratification method which is the simplest technique to obtain composite materials, while laurel, a variety of wood, is used for the construction of the matrix where the polyester resin is applied being mixed up with the cabuya, which results in a hard and resistant layer. Finally the filler is applied and the vehicle is painted, which provides it a modern, surface finish, after that, the aileron and spoiler are assembled in the car body of the Formula SAE. It is recommended to use cabuya completely dry in order to absorb the polyester resin in an effective way taking the shape of the profile with their respective drifts, leaving the vehicle ready to compete, enhancing the prestige of the Polytechnic School of Chimborazo at national and international level.