Avaliação estrutural da asa de um VANT: estudo de caso para uma aeronave da competição SAE Brasil Aerodesign

Abstract

The present work had as objective the accomplishment of a case study aiming at reducing the mass of the structure present in the wings of the aircraft that participate in the SAE Brasil Aerodesign competition. To this goal, design requirements were initially determined based on the relevant standards and bibliographies; soon after the load factor was defined and the V-n diagram was drawn, which refers to the flight envelope to which the aircraft can be exposed without structural failure; then, with the help of MATLAB®, the lift forces were obtained along the span, using the Schrenk method. Once the support distribution was obtained, the structural geometry was imported into the ANSYS® finite element analysis software. Then improvements and changes were made to meet the design requirements: structural safety factor, maximum wing tip deflection and minimum flutter speed. At the end of the analysis, a configuration was obtained that met the design specifications and presented a 52% reduction in the structural weight of the wing. [resumo fornecido pelo autor]