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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Single floating structure Ansys AQWA › Reply To: Single floating structure Ansys AQWA

July 25, 2024 at 12:44 pm
S.S.S.ShankaVasuki
Subscriber

Hi,

Thank you for the suggestions. I tried implementing all the sugesstion to my simulation and I followed this procedure as shown in the image:

From the above plots, the responses in pitch have been severly dampened and surge has increased. From these plots, it is clear that I am going wrong somewhere which I am not able to figure out. So I have some questions regarding this.

  1. Is the specification of the irregular wave correct? (if not could you suggest some values that I can use?)
  2. Have I used the correct mooring stiffness matrix from the correct output file?
  3. Do I need to include additional damping and additional added mass matrix in the simulation? As of now there are no additional mass/damping matrices defined as it can be seen in the image of point (5). 
  4. Because in the Analysis.LIS file from the results of hydrodynamic diffraction, I get added mass and damping matrix at different frequencies. Do I have to enter them as additional damping matrix in part -> insert -> additional damping?

Please let me know where I am going wrong. 

Thanks!

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