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http://dx.doi.org/10.5139/JKSAS.2020.48.8.555

Aeroelastic Tailoring of a Forward-Swept Wing Using One-dimensional Beam Analysis  

Choi, JaeWon (Department of Mechanical and Aerospace Engineering, Seoul National University)
Lim, ByeongUk (Department of Mechanical and Aerospace Engineering, Seoul National University)
Lee, SiHun (Department of Mechanical and Aerospace Engineering, Seoul National University)
Shin, SangJoon (Department of Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.48, no.8, 2020 , pp. 555-563 More about this Journal
Abstract
Foward-swept wings are known to possess superior aerodynamic performance compared to the conventional straight wings. However major concerns regarding forward-swept wings include divergence at lower airspeeds which require careful consideration at the design stage. As an endeavor to overcome such drawbacks, aeroelastic tailoring is attempted. In order to find an optimal ply sequence, recursive aeroelastic analyses is conducted and one-dimensional beam analysis coupled with simple aerodynamics is used for the improved computational efficiency and modelling convenience. The analysis used in this paper, DYMORE and analytic formula, both use one-dimensional beam model for the structure. Cross-sectional analysis for multi-cell NACA0015 airfoil section is conducted using VABS and oblique function is used for the sweep angle. Throughout the present aeroelastic tailoring, the maximum divergence speed of 290.2m/s is achieved which is increased by approximately 43% than that for the conventional ply configuration.
Keywords
Forward Swept Wing; Aeroelastic Tailoring; Divergence; Geometrically Exact Beam;
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