Prescribed Displacement
The Prescribed Displacement node adds a condition where the displacements are prescribed in one or more directions to the geometric entity (domain, boundary, edge, or point).
If a displacement is prescribed in one direction, this leaves the structure free to deform in the orthogonal directions.
Coordinate System Selection
The constraints are applied in the axis directions of the coordinate system selected in this section. You should only use a coordinate system that has fixed spatial directions.
Prescribed Displacement
For the displacement in each direction, select a setting from the list — Free, or Prescribed. Select:
Free (the default) to leave the displacement component unconstrained.
Prescribed to constrain the displacement component to a given value. Enter a scalar value for the component of the prescribed displacement u0.
For H matrix H select Isotropic, Diagonal, Symmetric, or Full and then enter values as needed in the field or matrix. Enter values or expressions for the R vector R.
Constraint Settings
To display this section, click the Show More Options button () and select Advanced Physics Options in the Show More Options dialog box.
Location in User Interface
Context Menus
Ribbon
Physics Tab with Solid Mechanics selected: