Command reference help topics
Enforced Motion Location dialog box
| Name | |
|---|---|
| Name | A descriptive name for this excitation location. |
| Description | A longer description for the excitation location. |
| Destination Folder | |
| Constraint Container | Specifies the folder in the Simulation Navigator in which the boundary condition will be stored. The list includes the root container and existing folders that you created using the New Folder command. Examples of a root container include Load Container, Constraint Container, and Simulation Object Container. |
| Folder Manager | Displays a hierarchical listing of existing folders. To create a new folder, right-click any level of the hierarchy and choose New Folder. |
| Model Objects | |
| Group Reference | Lets you apply the constraint to a group.For more information, see Group Reference options. |
| Select Object | Lets you select the nodes to specify as the location of an enforced motion excitation. If you cannot select nodes, open the Node and Element Display dialog box and set Node Marker to Dot or Asterisk.When you solve the solution, the solver generates a constraint mode, equivalent attachment mode, and effective mass for each enforced degree of freedom (DOF) for each node in the location. You can apply excitations only to DOF within the locations you predefine here as Enforced. |
| Direction | |
| Displacement CSYS | Sets the coordinate system that the software uses to apply the excitation location. You can select the Global Cyclic Analysis or the Existing coordinate system currently defined for the selected nodes or geometry, or you can create one of the following types of local coordinate systems: Cartesian, Cylindrical, Spherical.Note: The Global Cyclic Analysis coordinate system is available only if it is defined in the FEM. |
| Degrees of Freedom | |
| DOF1, DOF2, DOF3****DOF4, DOF5, DOF6 | Lets you select the direction(s) for this excitation's degrees of freedom. When you solve the solution, the solver generates a constraint mode for each DOF you set to Enforced for each node in the location. You will define the actual excitation in the Response Dynamics solution process. The DOF you set to Enforced correspond to the directions of motion to capture and the directions in which you will be able to apply the actual excitation. For example, to set up the enforced motion location to accept an excitation in the Y direction, set DOF2 to Enforced.Note: For any DOF not set to Enforced (that is, “free”), you must fix that DOF with another constraint, such as with a User Defined constraint. |
| All Free | Sets all DOF to Free. |
| All Enforced | Sets all DOF to Enforced. |
How do I
Specify excitation locations
Create nodal and enforced motion excitations
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Enforced motion and nodal force locations
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Enforced Motion Location dialog box, Simcenter 3D 2021.1 Series
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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/id630806 · retrieved 2026-07-17