Sistema de freio a disco para um veículo fórmula SAE

Abstract

Formula SAE is a competition for engineering students applying theoretical knowledge in a complete project for the construction of a formula-type racing car, meeting a certain regulation. Every automobile has an indispensable item, the brake system, which aims to bring together a series of items in a mechanical project, to decelerate and completely stop the vehicle. In this category, a team of specialists, evaluates the car in a series of tests and the challenge is to design a brake system that can be able to compete in the braking tests. In this work, the system chosen was a disc brake, operating under hydraulic pressure. The pilot activates the brake pedal and a fluid is distributed in the system until it reaches the disk. This kinetic energy is converted into thermal energy dissipated through the discs. The project is based on knowledge of vehicle dynamics, especially the longitudinal one that works with load transfer and car stability. Initially, the necessary components were raised. Master cylinder, calipers and brake pads, brake fluid and lines, were dimensioned and chosen according to this theoretical knowledge and from various calculations, the most viable options on the market that meet the project were selected. The brake pedal was entirely designed, and aluminum was chosen to be its manufacturing material. Brake discs and a balance bar were also designed, but those made of stainless steel types. Through classroom knowledge and Solidworks software we can design these elements in the best possible way, including computer simulations. The goal of designing a good disc brake system was successfully completed, enabling great learning.