Open Structure Type dialog window, which selects a structure type to be created, using either method:
When opened, you can create one of the following: building, 2D truss, 3D truss, 2D frame, 3D frame, grillage, plate, shell, plane stress structure, plane deformation structure, axisymmetric structure, or a volumetric structure.
Robot can analyze the structure types in the following chart, which shows the coordinates and the nodal degrees of freedom that are defined when creating a structure. U denotes displacements in the X, Y, or Z direction in a global coordinate system, and R denotes rotations around the axes.
STRUCTURES |
COORDINATES |
NODAL DEGREES OF FREEDOM |
---|---|---|
2D frames ![]() |
|
UX , UY , - , - , - , RZ , |
2D trusses ![]() |
|
UX , UY , - , - , - , - , |
Grillages ![]() |
|
- , - , UZ , RX , RY , - , |
3D trusses ![]() |
|
UX , UY , UZ , - , - , - , |
3D frames ![]() |
|
UX , UY , UZ , RX , RY , RZ, |
Plates ![]() |
|
- , - , UZ , RX , RY , - , |
Shells ![]() |
|
UX , UY , UZ , RX , RY , RZ, |
Plane stress structures ![]() |
![]() |
UX , UY , - , - , - , - , |
Plane deformation structures ![]() |
![]() |
UX , UY , - , - , - , - , |
Axisymmetric structures ![]() |
![]() |
UX , UY , - , - , - , - , |
Volumetric structures ![]() |
|
UX , UY , UZ , - , - , - , |
Building is a structure template available in Robot. Building is not a structure type, but a template which facilitates defining this structure type. Available coordinates and nodal degrees of freedom for the building are identical as for shells.
A sum of reactions is interpreted analogously (always on the length of 1 m).
See also: