Rigid Beam

Rigid Beam connects a node to a set of nodes in a rigid fashion.


beam element

Physical property

rigid body motion

Mesh connectivity


Number of nodes

2 (1 master, 1 slave)

Degrees of freedom
(per node)

6 (3 translations and 3 rotations)

Type of behavior


The degrees of freedom of the master node (N1) are linked to the degrees of freedom of the slave node (N2) according to rigid-body equations. 
As a consequence, the displacement of the slave node depends to the rigid-body motion.
Any direction can be relaxed in the rigid-body equations.

If there is more that one slave node, this Rigid Beam element becomes the traditional Rigid Spider element.