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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Gettiing problem with interacting structures have moved too far › Reply To: Gettiing problem with interacting structures have moved too far

July 15, 2024 at 7:31 am
Mike Pettit
Ansys Employee

Hello,

To restrict the heave motion of the spar you could also use a pair of fenders, with each fender attached to the spar and the contact planes on Fixed Points positioned +/- 2 m vertically from the initial fender positions. You should change the Fender Axes and Contact Axes Alignment Method option to 'Direction Entry', then set the Rotation About Local Y so that the X directions (red arrows) of each axis system are pointing towards each other. Then the Fender Initial Attachment Point Separation should show '2 m (Point to Plane)'.

Regarding the structures merging, if I understand correctly: Aqwa is a rigid body solver, and it does not detect contact between structures - only the fenders can detect contact. So, it is possible that two structures can pass through each other, if there are no fenders to prevent it.

Mike