Block Format Keyword Describes the node groups.


Enter selected item numbers (any number may be input, 10 per Line)
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
item_ID1 item_ID2 item_ID3 item_ID4 item_ID5 item_ID6 item_ID7 item_ID8 item_ID9 item_ID10


Field Contents SI Unit Example
grnd_ID Node group identifier

(Integer, maximum 10 digits)

unit_ID Unit Identifier

(Integer, maximum 10 digits)

grnd_title Node group title

(Character, maximum 100 characters)

item_ID1, item_ID2,..., item_IDn List of node group identifiers




  1. Node groups are used to define secondary nodes of rigid walls, interfaces, rigid bodies or nodes to which a load is applied, like a concentrated load or a fixed velocity.
  2. Nodes are stored in this order. For all other input types, nodes are sorted.