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FLDS, Flight Loads - wing with winglet

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ANDREWPOPE

Aerospace
Sep 7, 2010
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UA
I am simulating a wing with a winglet as Flat Plate panels stiched together as usual and coupled with the structural model. Nevertheless after running an analysis the result shows that the aerodynamic panels of the winglet are torn away from the main wing aerodynamic panels as shown at the attached picture. Structural model is intact and defomed as supposed.
The strange thing for me is that the main wing in fact is simulated by several panels as well, except that these panels are located on one plane, unlike the winglet panels.
I wonder if this is normal for aerodynamic panels to be shown separated if they are not located on a single plane. Otherwise what might be the reason for such a result?
 
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