The Model component is a powerful and intuitive tool for constructing 3D models of pipe laying scenarios. In this example, the Model component is named ‘Normal Lay Model’. The ‘Flat Rigid Seabed’ is selected from the Seabed drop-down list and the Water Depth is defined as 69m. The following sections describe the various elements that are added to the model.
One Vessel component named ‘Lay Vessel(1)’ is added to the model. The properties for this vessel are listed in the table below.
Table: ‘Lay Vessel(1)’ Properties
Property |
Value |
Vessel |
Lay Vessel |
X-Coordinate |
0.0 m |
Y-Coordinate |
0.0 m |
Z-Coordinate |
0.0 m |
Yaw |
0° |
Two connection points are defined in this example, ‘_TensionerVCP(1)’ and ‘Seabed Connection’. ‘_TensionerVCP(1)’ is generated automatically because a vessel with a tensioner has been added to the model and it is located in the Vessel Connection Points folder. This connection point has the automatically generated properties listed in the table below, except DOFs 4 and 5 which are user-specified. ‘Seabed Connection’ is located in the Seabed Connection Points folder and has properties as shown in the second table below. Note that the ‘Seabed Connection’ coordinates are calculated automatically as the Calculate Position option is kept at the default, Yes. This means that the Y-Coordinate is to change automatically from its initial zero value to some negative value away from the vessel.
Table: ‘_TensionerVCP(1)’ Properties (Generated Automatically)
Property |
Value |
Connection Point Name |
_TensionerVCP(1) |
Vessel |
Lay Vessel(1) |
X-Coordinate |
4.012154 m |
Y-Coordinate |
30.844343 m |
Z-Coordinate |
0 m |
DOF4 |
0° |
DOF5 |
0° |
Lay over Stinger |
Yes |
Table: ‘Seabed Connection’ Properties
Property |
Value |
Connection Point Name |
Seabed Connection |
X-Coordinate |
0 m |
Y-Coordinate |
-457.956 m |
Z-Coordinate |
0 m |
DOF 1 |
0 m |
DOF 2 |
0 m |
DOF 3 |
0 m |
DOF 4 |
0° |
DOF 5 |
0° |
One Line component named ‘Line for Normal Lay’ is added to the model. The Start Point is specified as ‘_TensionerVCP(1)’ and the End Point as ‘Seabed Connection’. The Sag Option is defined as Auto.