Projeto de geometria de suspensão e direção aplicado para Baja SAE

Abstract

This work aims to develop a suspension and steering project for a Baja SAE prototype. The motivation behind this work is the potential to serve as a reference for future academic projects and to contribute to the advancement of scientific development and improvement of the dynamic performance of the Londribaja team's prototypes. For the project development, a literature review is initially conducted to gather suspension models and study suspension and steering geometries and their parameters, such as camber, caster, and kingpin. Subsequently, the front and rear suspension models to be dimensioned are evaluated and defined. Following this, two-dimensional and three-dimensional computational modeling is performed, followed by the analysis of the kinematics of the suspension and steering systems with the aim of reducing and/or controlling undesirable effects, resulting in an improvement in the prototype's dynamic behavior. Validated engineering models and software are employed to ensure the reliability of the project. Finally, the obtained results are analyzed, and it can be concluded that the objective of the work was achieved. The influences of bumpsteer were considerably minimized, achieving a front camber gain within acceptable limits. However, in the rear, the camber gain reached a higher value, a decision made in favor of oversteer dynamics.