Pevnostní kontrola a úprava páky předního stabilizátoru vozu Formula Student

Abstract

The bachelor thesis deals with the suitable modification of the front stabilizer lever of a Formula Student car. First, the theoretical basis of fatigue fracture is discussed. The low-cycle fatigue is emphasized due to calculate of lifetime. Subsequently, an estimate of the characteristic load and the expected number of cycles to failure is made. A simulation of the current design is then prepared for the following comparison with the new solutions. Mathematical modelling is performed using the finite element method in Ansys Workbench. The work presents 2 variants of the modifications each of which achieves a predetermined lifetime. The service life is calculated by simulation in Ansys Mechanical and also in an Excel spreadsheet by numerical calculation. Each of the variants has certain advantages and disadvantages. A comparison of the variants is given in the table at the end of the paper.