5MW FOWT linearization issue

Dear Dr. @Jason.Jonkman

  • I am using OpenFAST v3.0. Whenever I try to linearize with ExctnMod, RdtnMod = 2, the simulation stops and does not continue as shown in the first image. If I set ExctnMod, RdtnMod = 0, the simulation works fine and I get *.lin files, but that does not make sense for a floating turbine since I will be neglecting hydrodynamic wave excitation and radiation in such situation. Then, I used v2.6. to perform the same simulation with ExctnMod, RdtnMod = 2, and it works as shown in the second image. Do you know what might be the reason?

Thanks for your help!

Best regards,