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Influence of sailplane wing-bending flexibility on ‘1- Cosine’ gust loads

Published online by Cambridge University Press:  03 October 2016

E. Lasauskas
E. Lasauskas*
Affiliation:
Vilnius Gediminas Technical University (VGTU), Vilnius, Lithuania
*
edulas@vgtu.lt
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Abstract

Simultaneous modelling of aerodynamics, structure and flight dynamics is used to predict the gust loads on a model of 18-metre wingspan sailplane that includes bending flexibility. The ASWING software is used to analyse the time history of the wing-bending moment and the shear force at the wing root for the design gust speed and for the design maximum speed at different wavelengths of a ‘1-Cosine’ gust. Maximum values from the time history were compared with certification requirements for rigid sailplanes. The analysis revealed that wing-bending flexibility reduces the loads.

Keywords

sailplanewing bendinggust load
Type
Research Article
Information
The Aeronautical Journal , Volume 120 , Issue 1234 , December 2016 , pp. 1943 - 1955
Copyright
Copyright © Royal Aeronautical Society 2016 

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