EXTRN

Bulk Data Entry Defines boundary connections for an external superelement.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
EXTRN GID1 C GID2 C GID3 C GID4 C
GID5 C etc etc

Example

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
EXTRN 1001 123 1002 456 1103 1234 434 123456
1340 456 etc etc

Definition

Field Contents SI Unit Example
GIDi Identification number of the GRID or SPOINT to which the external superelement will be connected.

No default (Integer > 0)
Ci Component numbers. 4
GRID
The components refer to the coordinate system referenced by the grid points.
No default (0 < Integer ≤ 6)
SPOINT
Default = blank (blank or 0)

Comments

  1. EXTRN can only be specified in partitioned Bulk Data sections and is ignored in the main Bulk Data section.
  2. Connection grids must be specified in the partitioned Bulk Data section following BEGIN SUPER = SEID.
  3. Pairs of blank fields may be entered to allow easier modification of the EXTRN entry.
  4. Embedded blanks are not allowed in the fields.