Design and Analysis of Shear Fitting Used in Fin and Fuselage Attachment of a Basic Trainer Aircraft

Abstract

Design of an airplane is complex as it has six degrees of freedom once it is set to fly; hence, dealing with forces during flight becomes crucial. The structure of the plane should also withstand great ‘g’ force during the flight of the aircraft. The wing generates lift as the plane moves in the air, which counteracts the weight of the plane. The empennage structure will provide stability to the aircraft. Hence, the attachments for wing and empennage connected to fuselage should be strong enough. Fin, which is a fixed surface used to transfer the loads, is attached to the fuselage structure through fin-fuselage attachment. The bending moment and shear loads from the fin are transferred to the fuselage through the attachments joints. Shear attachment design is carried out based on various types of failure incurred in the lug analysis and followed by analysis of the shear attachment. Finally, the results are compared with the classical calculations and analysis of the shear attachment.

Keywords: Airplane, aircraft wing, shear attachment design, calculations and analysis, fin-fuselage attachment

Cite this Article

Abhilash KS, Rakesh R, Vinayaka MS et al. Design and Analysis of Shear Fitting Used in Fin and Fuselage Attachment of a Basic Trainer Aircraft. Journal of Aerospace Engineering & Technology. 2017; 7(1): 34–38p.