Reply To: Connection Stiffness Ansys AQWA

[Shuangxing Du]

I wonder if the joint stiffnesses near the bow are not realistic (too big)?  As I mentione previously, I do not have the experience on how to distribute the known percentage of the critical pitch damping due to viscous effect of the whole ship on all the sections of the ship.  Have you tried to do the calculation without these equivalent pitch damping?  If the damping has less effect on the heave RAOs, it could be the problem from the joint stiffness.