You can use the rigid translation method to specify that all of the nodes of the domain have a uniform motion in a given direction.
Click Rigid translation in the Preprocessor menu.
Rigid translation
The Preprocessor: mesh deformation menu will open.
Specify the domain of the rigid translation method using the Domain of the sub-task menu, in the manner described previously for the Fixed domain method.
Deformation domain
Specify the direction and the amplitude for the displacement of the nodes.
Click Model parameters to open the Parameters for rigid translation menu.
Model parameters
Click Modify direction of movement and revise the default values in the panels that open, as necessary.
Click Modify amplitude of movement and revise the default value in the panel that opens, as necessary.
Important: You can use an evolution function or a user-defined template to define the amplitude. Simply click the EVOL or button under the Ansys Polydata menu bar prior to clicking Modify amplitude of movement. After you have approved the amplitude value in the panel, the appropriate menus will open. Click Upper level menu to return to the Parameters for rigid translation menu.
Click Upper level menu to return to the Preprocessor: mesh deformation menu.
Click Upper level menu to return to the Task menu, and continue defining the task.