For a composite shell, by default, the surface mapping technique determines the 0° reference shown by the red arrow. The surface mapping option is based on the UV coordinates.
The figure shows the UV coordinates and the 0° reference for a cylindrical panel with a hole. The red face curves represent the U direction whereas the transverse curves represent the V direction. The U direction controls the 0° reference angle on a composite shell.
You can rotate the 0° reference to align with the V direction. In the Shell Definition PropertyManager, under Composite Options, select Rotate 0°Reference.
| UV coordinates |
0° reference |
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