ProductsAbaqus/StandardAbaqus/ExplicitAbaqus/CAE
TypeModel data
LevelPartPart instanceAssembly
Abaqus/CAEInteraction module
Optional parameters
- COUPLING
Set this parameter equal to the coupling method used to couple the
displacement and rotation of the reference node to the average motion of the
surface nodes within the influence radius.
Set COUPLING=CONTINUUM (default) to couple the displacement and rotation of each
attachment point to the average displacement of the surface nodes within the
influence radius.
Set COUPLING=STRUCTURAL to couple the displacement and rotation of each attachment
point to the average displacement and rotation of the surface nodes within the
influence radius. This parameter value is available only in three-dimensional
analyses.
- WEIGHTING METHOD
Defines an optional weighting method to modify the default weight
distribution at the coupling nodes.
Set WEIGHTING METHOD=UNIFORM to select a uniform weight distribution equal to 1.0. This is
the default.
Set WEIGHTING METHOD=LINEAR to select a linear decreasing weight distribution with
distance from the reference node.
Set WEIGHTING METHOD=QUADRATIC to select a quadratic polynomial decreasing weight
distribution with distance from the reference node.
Set WEIGHTING METHOD=CUBIC to select a cubic polynomial monotonic decreasing weight
distribution with distance from the reference node.
Data lines to
specify the degrees of freedom to be constrained
- First line
First degree of freedom constrained. See
Conventions
for a definition of the numbering of degrees of freedom in
Abaqus.
If this field is left blank, all degrees of freedom will be constrained.
Last degree of freedom constrained. If this field is left blank, the degree
of freedom specified in the first field will be the only one constrained.
- Only rotational degrees of freedom can be
released. All available translational degrees of freedom are constrained. If
the user specifies one or more rotation degrees of freedom but not all
available translational degrees of freedom,
Abaqus
will issue a warning message and add all available translational degrees of
freedom to the
constraint.
Repeat this data line as often as necessary to specify
constraints for different degrees of freedom. When the ORIENTATION parameter is specified on the associated
COUPLING option, the degrees of freedom are in the referenced local
system in the initial configuration; otherwise, they are in the global system.
In either case these directions will rotate with the reference node in
large-displacement analyses (when the NLGEOM parameter is included on the
STEP option).