Análise estrutural de um quadro de bicicleta

Abstract

The objective of this work is to determine the stresses experienced by a racing bicycle frame, made of aluminum 6061-T6, using the finite element method (FEA - Finite Element Analysis) when subjected to different types of steady-state loads applied by a 75 kg professional cyclist during the sport. The mesh configurations were validated by comparing the results obtained with experimental data. Subsequently, the mesh setup was replicated for a new, more modern geometry to evaluate a real case of static effort during pedaling, considering loads during standing climbs, seated climbs, and high-speed flat terrain pedaling. This work also aimed to determine the fatigue life of the frames according to ISO 4210-6. The geometry and frame were created using Autodesk Inventor®, where the standardized tubular bodies of the structure and their respective cross-sections were designed. All loading analyses were conducted using Ansys® software. This allowed for the identification of the points of highest stress, where greater attention is needed during the design, and for determining the deformations in the frame that would impact the cyclist's performance.