Análise modal numérica de uma estrutura do tipo Baja

Abstract

Modal analysis is the study of vibrations, more specifically about the dynamic properties of systems at the frequency domain. When projecting a structure in engineering, the modal analysis utilizes the total mass and structural rigidity of the system with the key objective of finding the diverse natural frequencies on which the structure resonates and its mode shapes. The modal analysis study during a project has the purpose of making sure the external stimulus frequencies is kept away from the structure’s natural frequencies. These stimulus can be from various types and, for a BAJA vehicle, the stimulus may come from diverse components from the car itself or even from external entries. In this work there will be only the modal analysis and the representation of the values obtained from the numerical simulations. For the validation of the method used, it was applied to the reference chassi that was simulated and experimentally validated.