Coord (Coordinate)

Purpose:

This interface is used for showing, creating, modifying, and deleting the following LS-DYNA keyword cards:

Function:

Sample:

No sample.

NODES

  • Show : Show existing *DEFINE_COORDINATE entities.

  • Cre : Create new *DEFINE_COORDINATE entities.

  • Mod : Modify existing *DEFINE_COORDINATE entities .

  • Del : Delete existing *DEFINE_COORDINATE entities.

  • Label : Set current entity label type.

  • Type : Select coordinate type.

  • Clear : Clear current data.

  • All : Select all *DEFINE_COORDINATE entities.

  • None : Deselect all *DEFINE_COORDINATE entities.

  • Rev : Reverse selection.

  • AList : Select all entities within the selected range (Only applies when there are 20+ entities).

  • Apply : Apply entries for creation/modification or selections for deletion.

  • Cancel : Cancel this modification or selection.

  • Write : Write selected coord data to file.

Define *DEFINE_COORDINATE_NODES data:

  • CID : Coordinate ID. A unique number has to be defined.

  • Title : Enter box title.

  • N1 : Enter node ID for node at local origin.

  • N2 : Enter node ID for node on loacal x-axis.

  • N3 : Enter node ID for node on local x-y plane.

  • FLAG : Set to unity, 1, if the local system is to be updated each time step for the BOUNDARY_SPC nodal constraints and ELEMENT_BEAM type 6, the discrete beam element. Generally, this option when used with nodal SPC's is not recommended since it can cause excursions in the energy balance because the constraint forces at the node may go through a displacement if the node is partially constrained.

  • Dir : Axis defined by node N2 moving from the origin node N1. The default direction is the x-axis.

SYSTEM and VECTOR

Use imbedded Vector Operation Interface to create system and vector data.

Note:

For Show, Modify, and Delete, the Entity Operation Interface will show. For Create:*SYSTEM and Create:*VECTOR, the Vector Operation Interface is embedded in the middle controls area.