19.5. The NLIN Data Record - Nonlinear Cables

When an NLIN data record is input, the program assumes that the nonlinear properties correspond to those specified by the most recently input nonlinear properties data record. Failure to input these properties before a NLIN data record means that they are undefined and will result in an error. Note that one nonlinear properties data record will normally apply to several NLIN data records. This not only avoids repeating the same properties for several similar mooring lines, but also enables the user to make a single change to apply to all those properties.

Parameters (6), (8), (9) are only applicable when a POLY nonlinear line is used as a winch line.

The maximum number of mooring lines that may be defined is 100.


     2   5  7    11    16    21    26    31        41        51        61        71
    - --- -- ---- ----- ----- ----- ----- --------- --------- --------- --------- ---------
   |X|   |  |NLIN|     |     |     |     |         |         |         |         |         |
    - --- -- ---- ----- ----- ----- ----- --------- --------- --------- --------- ---------
       |  |   |     |     |     |     |       |         |         |         |
       |  |   |     |     |     |     |       |         |         |         |
       |  |   |     |     |     |     |       |         |         | (9) Paying-out Friction
       |  |   |     |     |     |     |       |         |         |      Factor Fp (F10.0)
       |  |   |     |     |     |     |       |         |         |
       |  |   |     |     |     |     |       |         | (8) Winding-in Friction
       |  |   |     |     |     |     |       |         |     Factor Fw (F10.0)
       |  |   |     |     |     |     |       |         |
       |  |   |     |     |     |     |       |         |
       |  |   |     |     |     |     |       | (7) Unstretched Length (F10.0)
       |  |   |     |     |     |     |       |
       |  |   |     |     |     |     |   (6) Winch Tension Ts (F10.0)
       |  |   |     |     |     |     |
       |  |   |     |     |     |     |_(5) Node Number (I5)
       |  |   |     |     |     |
       |  |   |     |     |     |_(4) Structure Number (I5)
       |  |   |     |     |
       |  |   |     |     |_(3) Node Number (I5)
       |  |   |     |
       |  |   |     |_(2) Structure Number (I5)
       |  |   |
       |  |   |_(1) Nonlinear Mooring Line Code (A4)
       |  |
       |  |_Optional User Identifier (A2)
       |
       |_Compulsory END on last data record in Data Category (A3)