Análise de geometria de suspensão duplo “A” dianteira para protótipo off-road

Abstract

The present work aimed to carry out a study on the double A front suspension geometry for a competition off-road vehicle. The double A suspension is an independent configuration of overlapping arms, which generally has a shape similar to an "A". The study began with a literature review describing the main characteristics of this type of suspension. Next, the main components of the suspension and the geometries that will be used in the specific development for the vehicle in question were presented. Subsequently, the proposed suspension was modeled using the MSC Adams Car software. The study involved creating the model and conducting dynamic analyses of the system. The evaluations were based on the parameters of camber, bump steer, and Ackermann geometry. The objective was to analyze and optimize the different aspects of the double A front suspension, aiming to improve the performance of the competition off-road vehicle. The analyses performed in the MSC Adams Car software provided important information about the system's behavior, enabling the identification of possible adjustments and enhancements in the geometry to achieve a result with good camber gains, a high percentage of Ackermann, and low bump steer.