This data record defines a nonlinear mooring line in the same way as a NLIN data record except that NLID will flag the mooring line as dynamic so that dynamic analysis will be performed for this line unless cable dynamics is switched off by a DOFF data record (see The DYNM/DOFF Data Records - Cable Dynamics ON/OFF Switch).

NLID data records can only be used for elastic catenaries.

Line dynamics is available in all Aqwa programs (except Aqwa-Line), but it has little value in Librium static analysis except to take into account the current drag on mooring lines.

The NLID Data Record

      2   5  7   11    16    21    26    31        41        51        61        71
    - --- -- ---- ----- ----- ----- ----- --------- --------- --------- --------- ---------
   |X|   |  |NLID|     |     |     |     |         |         |        |         |         |
    - --- -- ---- ----- ----- ----- ----- --------- --------- --------- --------- ---------
       |  |   |     |     |     |     |                
       |  |   |     |     |     |     |                 
       |  |   |     |     |     |     |         
       |  |   |     |     |     |     |
       |  |   |     |     |     |     |_(5) Node Number (I5)
       |  |   |     |     |     |
       |  |   |     |     |     |_(4) Structure Number (I5)
       |  |   |     |     |
       |  |   |     |     |_(3) Node Number (I5)
       |  |   |     |
       |  |   |     |_(2) Structure Number (I5)
       |  |   |
       |  |   |_(1) Data Record Keyword (A4)
       |  |
       |  |_Optional User Identifier (A2)
       |
       |_Compulsory END on last data record in Data Category (A3)