Lu LIU, Taehyoun KIM, Kwok Leung LAI

DOI Number: N/A

Conference number: IFASD-2015-147

In this work, the static aeroelastic behavior of high aspect ratio wings undergoing large static deformations has been investigated analytically. Towards this end, a nonlinear structural model based on a simple one-dimensional nonlinear beam theory originally developed by Minguet and Dugundji [1] is used. An efficient evaluation of large static deformation of High Altitude Long Endurance (HALE) airplane is developed by merging the wing, fuselage, and tail structures based on the beam model. This paper also discusses coupling the beam model with several aerodynamic models to investigate the static performance of the high aspect ratio wing. Comparisons of the aerodynamic tools are made in terms of numerical efficiency, simplicity and further applications. Among these aerodynamic modeling, unsteady vortex lattice method (UVLM) is given a special attention since it offers convenient and accurate prospects in analyzing the dynamic behavior of the HALE aircraft.

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In Categories: 2. IFASD 2015, Computational Aeroelasticity
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