Reply To: ANSYS AQWA : Issue when perform hydrodynamic analysis for irregular waves

[Shuangxing Du]

Thanks for sharing these information. It seems that Partie 1 is a fully submerged structure but without the structure mass. In the time domain analysis, this setting may cause the singularity problem when sovling the motion equation.  Please define the mass and moments of inertia of Partie 1 properly. If it is a fixed structure, you can make these values in the same orders of those of Partie Centrale.