Análisis comparativo a fatiga y vibración de resortes automotrices tipo hoja de la empresa Vandervilt S.A. por el método de elementos finitos y pruebas experimentales

Abstract

Leaf spring suspensions are traditional and generally used in the car industry due to their effective capacity of absorbing the shock energy produced by impact force charges. The study analysis is concentrated in optimizing the leaf spring design for truck model: Chevrolet Luv Dimax RT50 of General Motors of Ecuador, improving its design by the use of methods of analysis by finite elements, which will allow detect possible failures, correcting any defects, and to guarantee good performance. Different types of suspensions and manufacturing processes were analyzed, from material evaluation, forming processes, up to mechanical testing. The design theory was established using The Spring design manual for static analysis such as fatigue, and the software ANSYS of finite elements methods (FEM) for the simulation of the model that was considered in contact between the leaf springs. The results showed static and dynamic stress, natural frequency of operation, life cycles and harmonic results. This study will allow implementing a virtual laboratory, once the model is correctly calibrated, allowing Vanderbilt S.A to produce new designs and analysis and optimizing the resources for leaf spring manufacture.