Modelagem e otimização de mola parabólica para aplicação em veículos pesados

Abstract

60% of the goods produced in Brazil are transported by roads and highways, accounting with more than 60 thousands companies generating more than 2,5 million jobs. Due to this fact, the country has become one of the biggest markets for heavy duty vehicles, attracting several automakers. Even though beeing clearily dependent of that kind of transportation, the country roads are in terryble shape, as researches of the National TRansports Confederation (CNT) indicates. Beacause of that unique conditions, it’s needed to create specific engineering solutions to the local market. This research has the objective of developing one analyses and optmization tool for parabolic leaf springs applied in this kind of vehicles, making possible that new systems are entirely designed and develop in the country. To that, the suspension and steering systems are modeled in a multibody software, MotionView. The optimization algorithym used is the Efficient Global Optimization, wich approximates the objective function by one Kriging methamodel, created by the application of one Design of Experiments to the multibody model.