Input the displacement at an element node. The displacement is used to assign a displacement to a particular node. It is classified as a load because it causes structural deformation, but it has similar characteristics as the boundary condition. For example, constraint forces occur on the node where the displacement is input. The input displacement acts in the node coordinate system direction, which is defined by the GCS by default. The displacement is useful when applying the measured displacement in analysis or when understanding the plastic (limit) state of the element.

Select the node where the displacement will be applied and set the size and direction. The target selection method and size/direction settings are as follows:

[Object]

The applied displacement is defined on the node, but the selection target can also be set as a geometry shape (edge, surface etc.) or using auto-select free face nodes. For an edge or surface, the selected shape must have been used for element creation and the displacement is applied to all nodes in the specified direction/size. For free face nodes, select a free face node and all points that make contact with the node-containing element at an angle smaller than the specified angle (feature angle) are automatically selected.

[Components]

Input the displacement size according to the set direction. A positive (+) value applies the displacement in the set direction and a negative (-) value applies the displacement in the opposite direction to the set direction. The size change with respect to the coordinate value increase in the GCS can be defined using a reference function. Here, the input value is multiplied by the function value for application.