Projeto, modelagem e simulação de sistema de suspensão duplo a para rali aplicado em VW Fusca

Abstract

The aim of the Volkswagen Beetle was to power the shaken Germany after the First World War, being a cheap, economical and easy to maintain car. Due to the development goals, the performance characteristics were disadvantaged at the expense of simplicity of manufacture and maintenance. This vehicle is not originally suitable for the rally environment, a type of racing performed outdoors, usually at highway speeds, manly on unpaved roads. These rough terrain conditions put great stress on the suspension components, which can cause damage to the system. Another point to be improved is the unfavorable weight distribution on the original vehicle, approximately 40% on the front axle and 60% on the rear axle. For better dynamic control and greater turning capacity, the weight must be concentrated between the vehicle's axles. This work aimed to carry out a kinematic and dynamic study of a double A suspension for use in the Volkswagen Beetle in rally events, together with the repositioning of the engine to rear mid-engine position. For this, a study of the initial vehicle parameters and the desired parameters for a rally suspension system was carried out. Afterwards, initial calculations were performed based on the parameters obtained in the previous step. The next step was the simulation of the system in Lotus Suspension Analysis multibody software to validate its operation according to the desired parameters. Then there was the construction of the system in SolidWorks environment to verify the applicability of the model in relation to the space available in the vehicle. With this work, it is concluded that it was possible to develop a rally focused suspension system for the Volkswagen Beetle, and that this system reaches the desired parameters and meets the space restrictions in the vehicle. [resumo fornecido pelo autor]