Main Help → All Commands → FEA Boundary Conditions → Fix Point
Nodal boundary conditions in FEA analyses can be applied to a single node by using a FixPoint
command. The two variations of the FixPoint
command select one node. The first one selects a node by coordinates while the second one selects a node from a previously defined key point:
FixPoint (x),(y) (Displacement and Load) (optional Rotate and/or Select command) EndFixLine
or
FixPoint (id) (Displacement and Load) (optional Rotate and/or Select command) EndFixPoint
where
(x,y)
define coordinates (in length units) for a point (or (R, Z)
coordinates in axisymmetric calculations).(id)
is a previously defined key point. The key point must be in a path that is used to mesh an area.Within FixPoint
blocks, there can be Displacement commands and Load commands to set displacement or load in the x
and/or y
direction, a Rotate command to rotate the node for skewed boundary conditions, or a Select command to select the node for conditional output of results. The selected node will be assigned each specified boundary condition, rotated or selected.
FixPoint
command is only allowed for FEA analyses.