|
Type |
spider element |
|
Physical property |
|
|
Mesh connectivity |
SPIDER |
|
Number of nodes |
1 master, n-1 slaves |
|
Degrees of freedom |
6 (3 translations and 3 rotations) |
|
Type of behavior |
kinematics |
The degrees of freedom of the master node (N1)
are linked to the degrees of freedom of each slave node (N2 to
Nn) according to rigid-body equations.
As a consequence, the displacements of the slave nodes are linked among
themselves according to rigid-body motion.
Any direction can be relaxed in the rigid-body equations.
If there is only one slave node, this Rigid Spider element becomes the traditional Rigid Beam element.