Dear Dr. Jonkman,
Thank you for your quick reply.
Actually at first step, I used platform properties when I tried to verify added mass and damping coefficients with your paper “Definition of the Floating System for Phase IV of OC3” and it worked.
At next step I am going to verify structure position by another report of you "Offshore Code Comparison Collaboration (OC3) for IEA Task 23 Offshore Wind Technology and Deployment ". (Load case 4.1 & 4.2)
The question is that for this analysis I should consider only the platform properties or I have to use whole system properties which you mentioned it in this topic Inertial Moments of OC3-Hywind Components - #9 by Jason.Jonkman .
Best regards,