To prescribe a displacement at a joint

§    Select the joint or joints to undergo the prescribed displacement in the Load window

§    Choose Prescribed Displacement   from the Load menu

A dialog box will appear with icons for the various prescribed displacements.

§    Click on the icon which shows displacement direction

§    Type in a value for the displacement

§    Click on the OK button

Selecting the "No prescribed displacement" icon (the first icon in the list) will remove all prescribed displacements from the selected joints.

Prescribed displacements act in the local coordinate system of the joint to which they are applied.  Each of the icons represents a direction for the displacement relative to one of the joint’s reference axes.  As you click on the icons that indicate the various displacements, the directions of each displacement will be indicated by the radio buttons at the bottom of the dialog.  You can also click on the radio buttons to choose which direction you wish the displacement to act in.

A prescribed joint displacement affects the current load case only.

The properties of a prescribed displacement may be edited by double clicking on the icon representing the prescribed displacement.