Resumen

PEREZ TORREJON, Sergio Alberto. CONCEPTUAL DESIGN AND AERODINAMIC IMPACT ANALYSIS OF A FIXED-TRICYCLE LANDING GEAR FOR THE MINIATURE UNMANNED AIR VEHICLE (MUAV) "TUNKI". JBC [online]. 2017, vol.13, n.40, pp. 06-30. ISSN 2075-8936.

This works presents the fundaments, methods and calculations for the conceptual design of a Fixed-tricycle landing gear for a Miniature Unmanned Air Vehicle (MUAV), along with its aerodynamic analysis in order to know the impact over the aircraft general aerodynamics. Initially using qualitative, quantitativeand comparative methods, a determination of the initial parameters of position about the aircraft fuselage has been performed, using aircraft data previously determined and satisfying clearance distances and angles requirements. Secondly, structural calculation has been made in order to define the landing gear strutsgeometry, using an energy absorption method and making an analogy with a cantilever beam, followed by a structural analysis using the Finite Element Method tool Ansys-Workbench©. Later, an aerodynamic analysis of the proposed landinggear has been performed, getting its aerodynamic drag using analytical aproaching methods and comparing the results with a fluid analysis carried outby using the Computational Fluid Dynamics tool Ansys-CFX©, obtaining the drag polar, a new aerodynamic efficiency, and observing a máximum velocity reduction at 8.000 and 10.000 RPM. Allthis analysis were made taking in consideration a cruise altitude and velocity. Finally, a final landinggear conceptual design is obtained, along with its aerodynamic analysis and the impact over the aircraft aerodynamics.

Palabras llave : Landing gear; MUAV; Aircraft conceptual design.