A structure Connection Point is defined as an attachment point connected to a Part that moves with the Part. Connection Points are defined in the Details panel by entering coordinates in global space or specifying an offset from a vertex on a structure. The coordinates defining the Connection Point can be parameterized. A structure Connection Point can be used by more than one object (cable, fender, etc.), if required. The option to choose a Fixed point vs. Connection points on structures is controlled by the Connectivity field in the Details panel of the object using the connection points.
To add a Connection Point:
Select a Part in the tree view.
Right-click the Part and select Add > Connection Point, or click on the Connection Point icon in the Parts toolbar.
Select the Connection Point object in the tree and set the initial position by doing one of the following:
Set Definition of Position to X, Y, and Z Coordinates, and set the Position Coordinates (X, Y, Z) in the Details panel.
Set Definition of Position to X and Y Coordinates, Z on Composite Cable Seabed, and set the Position Coordinates (X, Y) and a positive Z Offset from the Composite Cable Seabed Water Depth at the given X, Y position.
Set Definition of Position to Vertex Selection. Click Select a Single Vertex in the Vertex field, select a vertex on a structure, and click . You can then set an X Offset, Y Offset, or Z Offset from the vertex if needed.
Note: Even if you define the initial position of the Connection Point using Coordinates, or with an offset from a vertex on the Part, the Connection Point is "attached" to the part and will move with the part, maintaining the relative position that you defined when you created it.
The Include in Results option controls whether the Connection Point is available to be used as a Reference Point in a Hydrodynamic Frequency result, or as a Reference Point for Wave Surface Elevation or with motions relative to the wave surface in a Hydrodynamic Time Response result.
Note: In a Hydrodynamic Equilibrium result, or a Hydrodynamic Time Response result where the requested motion is not relative to the wave surface, the Include in Results option is not required for the Connection Point to be used as a Reference Point.
You may have up to 99 Connection Points in which the Include in Results option is set to Yes.
Important: When resuming a project that has been created with a version of Aqwa prior to Ansys Release 17.0, the first 17 Connection Points appearing in the Outline will have the Include in Results option set to Yes. Any subsequent Connection Points will have Include in Results default to No. If you wish to add Hydrodynamic Frequency results at a Connection Point, or Hydrodynamic Time Response result for Wave Surface Elevation or at a Connection Point with motions relative to the wave surface, you will need to perform a fresh Solve of the analysis.
When creating a new project, the Include in Results option of newly-created Connection Points will default to Yes as long as the limit of 99 has not been reached. Any Connection Points created after the first 99 will have the Include in Results default to No.