ABAQUS Volume II: I–Z - Manual (Page 117)

*KINEMATIC COUPLING
11.3 *KINEMATIC COUPLING: Constrain all or specific degrees of freedom of a set of
nodes to the rigid body motion of a reference node.
This option is used to impose constraints between degrees of freedom of a node or node set and the rigid body
motion defined by a reference node. The preferred method of providing a kinematic constraint of this type is
the *COUPLING option used in conjunction with the *KINEMATIC option.
Product: ABAQUS/Standard
Type: Model data
Level: Part, Part instance, Assembly
Reference:
•
“Kinematic constraints: overview,” Section 28.1.1 of the ABAQUS Analysis User’s Manual
Required parameter:
REF NODE
Set this parameter equal to either the node number of the reference node or the name of a node set
containing the reference node. If the name of a node set is chosen, the node set must contain exactly
one node.
Optional parameter:
ORIENTATION
Set this parameter equal to the name given to the *ORIENTATION definition (“Orientations,”
Section 2.2.5 of the ABAQUS Analysis User’s Manual) that specifies the initial orientation of the
local system in which the constrained degrees of freedom are defined.
Data lines to specify the nodes and degrees of freedom to be constrained:
First line:
1. Node number or node set label.
2. First degree of freedom constrained. See “Conventions,” Section 1.2.2 of the
ABAQUS Analysis User’s Manual, for a definition of the numbering of degrees of freedom
in ABAQUS/Standard. If this field is left blank, all degrees of freedom will be constrained.
11.3–1
ABAQUS Version 6.1 Module: ID:
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