Diseño de jaula antivuelco para vehículos de competencia modelo Hyundai i10, según normas de la Federación Ecuatoriana de Automovilismo y Kartismo (FEDAK)

Abstract

This project aimed to design a roll cage for the second-generation Hyundai I10 model, utilizing computer-aided design and simulation software, to ensure safety and functionality in rally-type sporting competitions. To achieve this, the internal measurements of the vehicle's cabin were taken, and two roll cage models were designed using SolidWorks software. Subsequently, the type of material was selected (ASTM A500 grade C steel and AISI 4130 steel), and a matrix was created based on the regulations set by the Ecuadorian Federation of Motorsports and Karting (FEDAK). Next, the load and anchoring conditions were identified for each simulation with both models, applying formulas found in the regulations of the International Automobile Federation (FIA). Finally, six simulations were conducted for each roll cage model using ANSYS software to measure deformation and stress. Each simulation represented various load locations that the vehicle would experience in the event of an accident. As a result, the twelve simulations with the two models yielded a range of deformation between 5.15 mm and 27.18 mm, which is below the limit established by the FIA (50 mm). Regarding stress, both designs in their respective simulations exceeded the ultimate tensile strength of both materials. However, these stress values were caused by singularities in the simulations. After correcting these singularities through sweeping techniques, values lower than the allowable limits based on the materials were obtained. It is concluded that both models comply with safety standards; however, Model 1, constructed with AISI 4130 material, provides higher safety. It is recommended to consider fabricating either of the two roll cages, taking into account the most suitable budget to future competitors.