Análise estrutural de um chassi de um veículo do tipo buggy

Abstract

Basically there are two constructive forms for the main structure of a land vehicle: monoblock (body and the chassis as a single piece) on body and chassis (chassis as a separate element). Most vehicles has the first type of construction, because it has the advantages of reduced weight and space occupied by the structure. However, due to the robustness and manufacturing cost, separate chassis of the truck is still used in heavy transport vehicles such as trucks and vans, trucks and vehicles out of the ordinary as the buggys. As a chassis design requirements are required stiffness and adequate strength in order to provide comfort and safety for the driver and passengers and strength to the structure. Thus, during the design phase, are carried out calculations and simulations to estimate their structural characteristics and find points of non-compliance, directing the design changes. A tool commonly used for these analyzes is the finite element method, and focus on the most critical regions of the chassis, such as the attachment points of the suspension and steering. In this context it is inserted this study, which aims to structurally analyze the chassis of a vehicle type buggy. Analyses were performed in the commercial finite element program Ansys Workbench. For the definition of loads and types of the simulations were used information from other academic work, standards of the FIA (Federation Internationale de I'Automobile) and SAE (Society of Automotive Engineers). Finally, after analyzing the results of the simulations, chassis improvements suggestions have been made to solve or reduce the problems encountered.