Dear Dr @Jason.Jonkman:
Thanks one more time for your reply. I changed the value of StC_P_Z= 1.5 m and reduced the glue code time step (DT) to almost 100 times its original value. Apparently, the simulation runs fine. How can I detect this kind of problem in the future? Is this because of the stiffness and damping values I chose? I’m trying to follow what M.A Lackner proposed in his paper to study the contribution of the TMD to reducing the tower tip fore-aft and side-to-side displacements.
Kind regards,
Emanuel M. Rergis