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http://dx.doi.org/10.5139/JKSAS.2019.47.2.98

Minimization of the Bending Deflection of the Human-powered Aircraft Wing Induced by Change of an Incidence Angle  

Lee, Chang-Bae (Seoul National University)
Im, Byeong-Uk (Seoul National University)
Joo, Hyun-Shik (Seoul National University)
Shin, Sang-Joon (Seoul National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.47, no.2, 2019 , pp. 98-106 More about this Journal
Abstract
Human-powered aircraft has wings with a shape of high aspect ratio which results in large bending displacement. This paper aims to improve the structural limitation by changing an incidence angle of the wings. The tendency change of bending displacement at the wing tip is observed assuming that airfoil and cross-sectional shape of the wing is fixed, and amount of the total lift generated is satisfied. Quasi-steady lift, drag and the aerodynamic moment are distributed with regard to sections of the wing. Those are analyzed using a numerical nonlinear lifting-line method and 'geometrically exact beam' (GEB) program in EDISON. 'Variational Asymptotic Beam Sectional Analysis' (VABS) program is used to check if the present wing is structurally solid. Furthermore, the predicted tip deflections are verified by comparing with DYMORE.
Keywords
Wing Design; Incidence Angle; Bending Displacement; EDISON;
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