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DLR-SC / tigl

The TiGL Geometry Library to process aircraft geometries in pre-design.
https://dlr-sc.github.io/tigl/
Apache License 2.0
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Structural elements fails in certain dihedral angles #995

Closed cemilcan26 closed 8 months ago

cemilcan26 commented 8 months ago

For certain dihedral angles(say 80-100), section thicknesses become quite small, leading unable to create structural elements. Scaling up those thinned sections in CPACS does not still create enough space.

example

joergbrech commented 8 months ago

@cemilcan26 thanks for opening your first issue here! 💐 At first sight it seems like you are really pushing TiGL's capabilities of parametric design: You have created an edge case where it is difficult for the geometry kernel to generate the structural elements. No matter how robust TiGL is, at some point you will eventually run into this limit.

I wonder, wouldn't it make sense in the design to add a rotation to the wing sections or wing elements to circumvent this issue? The rotation angle could e.g. be the average of the dihedral angles of the two adjacent wing segments. This would change your overall design, but from an outside perspective this seems reasonable to me.

BTW, on an unrelated issue: By using guide curves you can smooth out the kinks in your wing.