Validation of a Finite Element Computational Model for Determining the Torsional Stiffness of a Baja SAE Competition Prototype

Abstract

Torsional stiffness is the main performance parameter of the vehicle structure and its correct determination is one of the main challenges of the automotive and automobilist industry, it has a direct influence on vehicle comfort and dynamics, as well as occupant safety. This article aims at determining the prototype of Baja SAE competition torsional stiffness, where it gains emphasis since it is subject to extreme situations during the transposition of obstacles. It is of great complexity to obtain values by conventional analytical means, so a computational model of finite elements was used with its later experimentation through a bench of tests seeking to reproduce conditions analogous to those used in virtual environment. It was possible to conclude the coherence of the methodology used, opening the doors to the creation of computational analyzes in future prototypes and similar vehicles without the need of practical experimentation, reducing costs and design time.