Tensioner |
 
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Tensioner |
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The riser tensioning system is modelled via the inclusion of a group of elements modelling the slip ring and tensioning lines. The slip ring is modelling using rigid elements which connect the tensioning lines to the riser at the telescopic joint. The weight of the slip ring is modelled as a point mass at its connection location. Hinges connect tensioning line and slip ring elements.
Damper elements are included in the recoil analysis. These elements are used to dampen the motion of the riser system following the emergency disconnect.
The properties of the tensioning system are shown below in the table below. Note that the co-ordinates of the tensioner/vessel connections points are given in the global axes.
Details of the Riser Tensioning System
Diameter of Slip Ring |
21 in |
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Slip Ring Mass |
2200 slugs |
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Tensioner/Vessel Connections |
X [ft] |
Y [ft] |
Z [ft] |
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Tension Line 1 |
7561.75 |
5.21 |
0.0 |
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Tension Line 2 |
7561.75 |
0.0 |
5.21 |
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Tension Line 3 |
7561.75 |
-5.21 |
0.0 |
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Tension Line 4 |
7561.75 |
0.0 |
-5.21 |
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