Dear @Jason.Jonkman,
I have some questions about the stiffness matrix of a floating wind turbine, mainly in the PITCH and ROLL directions.
In the figure below, I calculated the contribution of gravity to the restoring stiffness, but the result is not as expected. Can you give me some suggestions?
(Frequencies of Full system and moor stiffness matrix - #10 by Jason.Jonkman)
Best regards,