Análise do projeto da mola Cantilever no trem de pouso

Abstract

Cantilever springs are often preferred for general aviation due to their ease of maintenance, low cost, and reduced weight. These flat springs have one end attached to the aircraft structure and the other supporting the loads from landings, takeoffs, and ground maneuvers. This study aims to improve the theoretical design of these beams by replacing the traditional prismatic beam with one of variable moment of inertia. The beam's width was adjusted to allow for constant stress along its length, maintaining deflection while optimizing material use in the cross-section. This approach enables more efficient material usage, resulting in a lighter beam with the same performance. For proper beam design, deformation calcula tions were conducted using the integration of the elastic differential equation and Castigliano's energy method. Additionally, Autodesk Inventor software was used to simulate deflection and analyze the forces involved. This combination of theoretical methods and digital simulations allowed for an analysis of different beam models. The results confirmed that beams with variable moment of inertia offer superior performance compared to prismatic beams. Both configurations fulfill the same structural function, but the variable geometry beam stands out for its lower mass, making it a more efficient solution for general aviation applications