Dear @Pere.Palacin,
Yes, at this time, the platform-yaw motions are limited to about 15 degrees. We have an upcoming project starting soon that will upgrade ElastoDyn (as well as associated changes in SubDyn, HydroDyn, and the mooring modules) that will enable large floater yaw motion, but at this time, platform-yaw motions must be limited.
Best regards,
Dear @Jason.Jonkman ,
Iâm sorry to bring back this topic, but I wanted to ask you the right way to introduce the Yaw rotation of the platform. Should it be due to the torsion of the mooring system or there is a proper way of creating a pin joint between the semisub and the mooring system?
Thanks!
Dear @Pere.Palacin,
See my post dated Dec 6, 2016 in the following forum topic for information about how to model a mooring system with a turret in OpenFAST: Modelling of a two-bladed FWT with leaning tower and guy-wire.
Best regards,
Dear Jason, Iâm trying to visualize the Volturnus-s floater as âpoint cloudâ using openfast 3.5.3 but when i import my vtk files to paraview, I can only see one point. I also tried with an older openFAST version (v2.5) and even i have a vtk for a morison surface, a cant see the floater
Dear @Georgia.Tsoukleri,
Can you clarify if your VolturnUS semisubmersible floater has Morison members defined in HydroDyn? For the floating structure, do you have SubDyn enabled or are you modeling the floater rigidly in ElastoDyn?
Best regards,
Dear Jason,
Im using Elastodyn
With morison members, you mean the âMEMBER-BASED HYDRODYNAMIC COEFFICIENTSâ section in HydroDyn? I havent define something in that section.
Thank you
Dear @Georgia.Tsoukleri,
Yes, that is what I meant.
That is why you canât see the semisubmersible. The point cloud or surface visualization of a floating substructure are based on the SubDyn members or HydroDyn strip-theory members, which you have not defined.
Best regards,