6 dof displacement(surge、sway、heave、roll、pitch、yaw) vs. times

- March 23, 2022 at 7:28 am
  
  maev5005
  Subscriber
  
  I use AQWA to simulate a floating structure.
  I want to check the 6 dof displacement(surge、sway、heave、roll、pitch、yaw) vs. times, which solution should I choose?
- March 23, 2022 at 5:03 pm
  
  Mike Pettit
  Ansys Employee
  
  You should choose Structure Motions > Structure Position > Actual Response to plot the total structure motion vs time.
  Low Frequency Response is the Actual Response with a low-pass filter applied, to estimate the motion of the structure at lower (drift) frequencies; Wave Frequency Response is the high-frequency motion, calculated as the difference between the Actual Response and the Low Frequency Response. RAO-Based Response is the motion of the structure based on the linear RAOs only.
  In the result input details select the Component from Global X, Global Y, Global Z for translational motions; or Global RX, Global RY, Global RZ for rotational motions.
  Aqwa results are always reported in the global axes - 'surge', 'sway', etc do not really apply, as these refer to a local structure axis system.
  I hope this helps!
  Cheers, Mike