Projeto preliminar de eixo cardan para BAJA SAE 4X4

Abstract

The construction of a four-wheel drive transmission system optional, opening up possibilities for project development in the area, especially facing the cardan shaft. The work covered will consider which types of joints are most used in this component, will establish the powertrain system that would receive the project, in addition to developing a project based on established conditions of common systems in this environment. It will address fundamental concepts of material resistance, as well as possible causes of failure, studying the various parts that make up the shaft, and verifying their resistance to the loads acting on them, aiming to seek validation through calculations and the finite element method through the use of CAD program. Selecting the Hooke 1310 joint set from the DANA catalog, and carrying out the calculations of the dimensions for the point, resulting in a 25mm tooth root diameter with 15 teeth, for the tubular axle it was built using the outer diameter closest to the fork diameter 60.5mm, resulting in the standard 2” schedule 40 tube. The modeling results did not show any type of interference that needed to be modified, but the point fork needed to be modified to carry out the stress relief calculation. Tests show that the tubular axle proved to be resistant to static and dynamic loads, but the tip failed the dynamic test, resulting in a useful life of 620km at maximum load.