Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
SUSPENSION PROJECT OF A FORMULA SAE: FROM CONCEPT TO FATIGUE CALCULATION
Submission Author:
Mauricio Motter , RS
Co-Authors:
Mauricio Motter, Walter Jesus Paucar Casas
Presenter: Mauricio Motter
doi://10.26678/ABCM.COBEM2019.COB2019-1358
Abstract
This work aims the design and analysis of a suspension for the Formula SAE vehicle model. The Formula SAE is a student competition that mobilizes engineering students from Brazil and around the world. To that end, the geometry of the components that compose the suspension were designed with the help of the SolidWorks CAD software, then the main parameters of the front and rear suspensions were defined and simulated in the multi-body Adams/Car software. In order to verify the structural behavior of these components, static simulations were performed using the Finite Element Method (FEM) into the Ansys Mechanical sofwtare, as well as vehicle dynamics simulations with the CarSim software to collect the forces in which the suspension is exposed. Finally, the same components were tested for durability using the Ncode Design Life software. The results obtained in the kinematic simulations showed that the parameters varied adequately. From the vehicle dynamics simulation, the history of forces present in the tire/ground contact was extracted, which served as input data in the structural simulations. Regarding the structural behavior of the components, the static simulations by FEM indicated that the Von Mises stresses were lower than the yield limit. The fatigue calculation was based on the calculated stress in the FEM analysis and the history forces from the vehicle dynamics simulation, resulting in a life upper the defined failure criterion.
Keywords
Suspension, Formula SAE, multi-body simulation, Finite Element Method, Fatigue Life
