Implementação da FMEA e desenvolvimento do plano de manutenção preventiva para o sistema de suspensão a ar de um veículo modificado

Abstract

Pneumatic suspension, also known as air suspension, was developed by Firestone in the 1930s and became popular in luxury and large vehicles. Unlike mechanical suspensions, pneumatic suspensions use air bags inflated with compressed air to dynamically adjust the vehicle's height, providing better performance, comfort, and customization. Due to the popularization and growing demand for adapting this system to conventional cars, specific equipment has emerged, making it a trend in the automotive market. However, this type of suspension requires special care, as small leaks can cause significant damage to the structure and even compromise occupant safety. Therefore, it becomes necessary to study the system's components, aiming to increase reliability and prevent failures. The FMEA (Failure Mode and Effect Analysis) methodology, which aims to assess the potential failure modes of a system, was used to develop a preventive maintenance plan consisting of activities designed to ensure the proper functioning of the equipment, reducing risks and the probability of unexpected failures. Based on this analysis, the main failure issues in the suspension were identified, enabling the development of preventive actions for the system.