Learning Forum

[M. Namaki]

dear sxdu

I tried refining the mesh to about one third of the gap between torus WEC and spar structure but still the problem exists. tryed so many amounts for stiffness coefficients but it won't respond well! and by the way I don't know how to make some parts non-diffraction! I would appreciate if you could guide me through this matter. 

I guess this problem was mentioned before in ansys forum and it seems it was solved but I just can't understand how?! the link is below:

/forum/forums/topic/ansys-aqwa-how-to-set-only-a-vertical-movement/

and I get these warnings too that I don't know how to solve and don't know if those are related to this relative vertical movement problem!