Projeto de empenagem e superfícies de controle para uma aeronave rádio controlada: uma análise de estabilidade

Abstract

The transport market is externalizing the policy of sustainability so that technological advances promote improvements without harming the quality of life, in view of the high growth in the use of aircraft as transport, so this work seeks to show how control surfaces and empennages are designed, the concepts and characteristics of the main components of an aircraft, such as the aerodynamic profile, wing, empennage and control surfaces, and the criteria and methodologies for the design and analysis of static and dynamic longitudinal stability. The development of this work was possible because it relied on input data provided by the aerodynamics, performance and structures teams, since the sizing of the empennages depends on the wing and the static and dynamic longitudinal stability analyses depend on inputs from these teams. It was identified that these geometries, by following the methodologies studied and the military standard MIL-F-8785C, were able to provide a statically stable radio-controlled aircraft for the longitudinal, lateral and directional axes, since they respected the static stability criteria according to the bibliographies. The dynamic stability analysis was based on the Rough-Hurwitz criteria, which was shown to be dynamically stable when also analyzed by its longitudinal modes, which were shown to be within the values stipulated by the basic bibliography. In addition, when the control surfaces were analyzed, they showed deflections predicted by the literature and high levels of stability and controllability, with the exception of the aileron, which showed level 2. Therefore, it can be concluded that the specific objectives have been met when the design of the empennages and control surfaces show good results when meeting the criteria of longitudinal static and dynamic stability, and values considered optimal by the literature for the analysis of the control surfaces.