Learning Forum

[qc1583]

When running AQWA in Workbench, the error "AROOTL:CALSSB FAILED" appeared. What is the cause of this?

[Mike Pettit]

Hello,

Are there any other error messages in the Output window? What kind of structure are you analysing - are you able to share a screenshot?

CALSSB is part of the code which runs the Shear Force/Bending Moment (SF/BM) calculations. In Aqwa Workbench, these calculations are turned on by default. If you are not interested in SF/BM results, you can turn the calculation off by clicking on the Part in the Outline tree, then scrolling to the bottom of the Details panel, and setting 'Calculate Shear Force/Bending Moment' to 'No'.

Mike

[qc1583]

[qc1583]

Hello，

I couldn't find the option 'Calculate Shear Force/Bending Moment' that you mentioned.

 Could you please confirm if it is located under 'Hydrodynamic Diffraction' in the 'analysis setting'?

THANK YOU

[qc1583]

"I am mainly studying the motion of floating wind turbines. If I disable the 'Calculate Shear Force/Bending Moment' option, will it affect the simulation results?"

[Mike Pettit]

Hello,

Sorry I did not explain very well: click on the structure under Geometry in the Outline tree (see below - here named 'Barge'), and in the Details panel you should find 'Calculate Shear Force/Bending Moment' at the bottom of the settings.

This setting will not affect the simulation results, it will only change the availability of some results in the Hydrodynamic Diffraction system, i.e. you will not be able to plot RAO-based shear forces/bending moments.

Mike

[qc1583]

"Thank you very much for your response. The issue has been resolved."👍