Diseño y construcción de un chasis para un vehículo prototipo mini todoterreno eléctrico

Abstract

The objective of this technical project was the design and construction of the chassis for an electric mini off-road prototype vehicle, with structural optimization, based on the application of multicriteria methods for the selection of COPRAS, TOPSIS and VIKOR construction material, generating the design and modeling using CAD software for each possible variant, under the regulations of the baja SAE 2019, obtaining a design that meets the performance and quality specification, considering the criteria of: deformation, Von Mises factor and safety factor, through simulation CAE of each design, using ANSYS simulation software, for its subsequent construction following techniques and processes corresponding to the manufacture of tubular structures. When applying each procedure through a comparative analysis, a geometrically optimal design proposal was obtained as a result with the implementation of structural steel ASTM A36, presenting a high weighting in terms of mechanical properties, when considering a statistical analysis, considerable values were obtained belonging to the design chosen with a maximum deformation of 0.64822 mm supporting an effort of 63.71 MPa, which leads to obtaining a safety factor of 3.924, determining that the design is acceptable and complies with the regulatory parameters, having a structural chassis subject to supporting operating loads and various external factors that arise in its use. Therefore, for future research it is advisable to apply techniques focused on the design and manufacture of this type of structure, guided in both design and simulation processes, in such a way that precision is generated in the sizing of structural members, optimizing the final product in compliance with the standards required under the corresponding regulations.