1. Line, line type and supernode connectivity

This data group defines the connectivity between lines and supernodes. If the line identifier is missing the line number implicitly defined by the order in which the lines are specified, will be used as the line identifier. References to line type IDs and supernode IDs are mandatory.

NLIN input lines.

LINE-ID LINTYP-ID SNOD-ID1 SNOD_ID2

  • LINE-ID: character(8): Line identifier

  • LINTYP-ID: character(8): Reference to line type identifier

  • SNOD-ID1: character(8): Reference to supernode identifier at end 1

  • SNOD-ID2: character(8): Reference to supernode identifier at end 2

If only 3 alphanumeric strings are specified, the first string is taken as LINTYP-ID, the second as SNOD-ID1 and the third as SNOD-ID2:

LINTYP-ID SNOD-ID1 SNOD-ID2

The LINE-ID is taken as the line number as implicitly defined by the order in which the lines are given.

The local element y- and z-axes are found from local x-axis and a reference vector.

The local element x-axis goes from end 1 to end 2 of the element. The local element y- and z-axes are found from local x-axis and a Element coordinate system. The local element x-, y- and z-axes will form a right-handed coordinate system.