*CONSTRAINED_INTERPOLATION

LS-DYNA Input Interface KeywordDefines an RBE3 element.

Format

(1) (2) (3) (4) (5) (6) (7) (8)
*CONSTRAINED_INTERPOLATION_{OPTION}
(1) (2) (3) (4) (5) (6) (7) (8)
ICID DNID DDOF CIDD ITYP  
If ITYP = 0, insert following lines for each independent node.
(1) (2) (3) (4) (5) (6) (7) (8)
INID IDOF TWGHT      
If ITYP = 1, insert one lines for set of independent nodes.
(1) (2) (3) (4) (5) (6) (7) (8)
ISNID IDOF TWGHT      
If OPTION = LOCAL, insert the following line.
(1) (2) (3) (4) (5) (6) (7) (8)
CIDI

Definition

Field Contents SI Unit Example
OPTION Coordinate system option.
= <blank>
DOFs for dependent and independent nodes specified in the global coordinate system.
= LOCAL
DOFs for dependent and independent nodes specified in a local coordinate system.
ICID Interpolation constraint element identifier.

(Integer)
DNID Number of dependent node.

(Integer)
DDOF DOFs of dependent node.

(Integer)
CCID Local coordinate system identifier for DOF definition of dependent node. Only for LOCAL option. Global system is used by default.

(Integer)
ITYP Input flag for independent nodes.
= 0
Node numbers are specified in separate lines.
= 1
Nodal set number is specified.
INID Independent node number.

(Integer)
ISNID Set number of independent nodes.

(Integer)
IDOF DOFs for independent node, or set of independent nodes.
TWGHT Weighting factor for independent node or for set of independent nodes (same for all DOFs).

(Integer)
CIDI Local coordinate system identifier for DOF definition of independent node. Only for LOCAL option. Global system is used by default.
Note: This value should be exactly the same as CIDD.

(Integer)

Comments

  1. This keyword maps to /RBE3.