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Mesh a buoy links with boat

Mesh a buoy links with boat

Mesh a buoy links with boat

(OP)
Hi everybody I'm a new registered and I have a question for you.

I'm following a stage inside the department of Hydraulics. Two weeks ago a started to learn about ANSYS program, I should create a buoy (simple cylinder) links with a cable at one WEC (water energy converter) and fixed with four cable to the sea bed.
So after create the geometry I inserted the Hydrodynamic package beside the geometric'package then the geometry pass in automatic inside the Hydrodynamic package.
The next sted I did was to give all the infromation inside the geometry (connection points, point mass, fixed points, create the connection and the cables).
After all I need to mesh the buoy and the WEC (it looks like a boat with simple geometry) before passa at the Hydrodynamic diffraction.
In the Mesh package there are only three information to give 1) defeating tollerance [meter] 2) Maximum element size [meter], the third created automatically by the program is the frequency [Hz].
The problem is when i press the button "generate", the program after few seconds stop and a message appear.
The message contains two options the first is search in windows to solution, the second is to close the program.
Why? Where am I wrong?
How can I create a stability mesh?

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