Dear Pablo,
I agree with your calculations, except that:
- The YawIner I used was 25,410,000 kg m^2. At the time, I had calculated this using the linearization functionality of FAST. This is very close the value reported in the following forum topic: Using Aggregate Mass in ADAMS to Check NREL CS_Monopile.bmi - #2 by Jason.Jonkman. The inertia you are using is an order of magnitude too small.
- ζ in the equation for YawDamp should be 0.02, not 0.2.
I hope that helps.
Best regards,