Observed Moment Discrepancy in VolturnUS-S Example

[SevenSky777]

While running example_from_yaml.py for VolturnUS-S_example.yaml with the following load case:

• [11.5, 0, 0, operating, 0, none, 0, 0, 0]

I observed a tower base bending moment of 3.49e12 Nm, which seems physically inconsistent with the expected aerodynamic forcing. Based on preliminary checks, the moment appears to be overestimated by approximately four orders of magnitude (∼10⁴). This discrepancy suggests a potential issue in how the loads are mapped or accumulated — possibly involving incorrect offset handling, double-counting, or misapplication of force-to-moment transformations.

I'd appreciate any insights or validation from others who've worked with this case.

[lucas-carmo]

Hi @SevenSky777 , thanks for bringing that to our attention! That was due to a bug introduced in v2.0 that was indeed double counting the lever arm for rigid towers. I just pushed this bugfix 89387aa to the dev branch. Are you able to use the dev branch to check if that solves your issue?

[SevenSky777]

Hi Lucas, Thanks a lot for your prompt reply and attention—it’s much appreciated. I’ve checked out the dev branch, updated the relevant line, and rerun the case. The error in order of magnitude has been resolved, which is great progress. I will close this issue as completed since the original bug (double-counting the lever arm) has been fixed.