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*PRETENSION
Data format:
Different lines comprising 6 values
IGRPMOOR T_MOOR a_MOOR IEL_MOOR EPSI_MOOR ITRYMAX
Status :
Optional
Purpose :
To adjust the length of one element to get the required top tension or vertical angle
Details :
| Parameter | Description |
|---|---|
| IGRPMOOR | Identification number of the mooring line |
| T_MOOR | required nominal tension in the line (in N) |
| a_MOOR | required nominal vertical angle in the line (in degrees) |
| IEL_MOOR | identification of the element number that will be adjusted |
| EPSI_MOOR | acceptable error on the tension or angle required |
| ITRYMAX | maximum number of iteration |
Note
- initial tension or angle must be lower than required
- One of the two variables T_MOOR and a_MOOR must be zero
Examples :
*PRETENSION
C igrpmoor T_moor a_moor iel_moor epsi_moor itrymax
2870e3 0 33 1e-4 100
2870e3 0 101 1e-4 100
The length of element 33 will be adjusted to obtain a top tension of 2870 kN in the mooring line number 1. The number of iterations is 100 and the requested accuracy is 287.0 N (1e-4*T_moor)
The same top tension is required for the mooring line 2 by adjusting the length of element 101.
