Create static excitations

A static excitation is defined on a distributed attachment mode. This procedure assumes that your solution was solved with one or more loads in the Dynamics subcase to generate the distributed attachment modes.

1. Use the Functions and Graphing tools or the Response Dynamics Function Toolkit to create the XY table function to be used in the excitation. The function must have an abscissa of Time and ordinate of Unitless Scalar.

2. Make sure the AFU file that contains your excitation function is open in the XY Function Navigator (in the XY Function Navigator, right-click AFU Files – XY Tabular Functions and choose Open).

3. In the Simulation Navigator, right-click the Excitations node (under the current Event node) and choose New Excitation→Static Load.

4. In the New Static Load Excitation dialog box, type a name for the excitation in the Name box.

5. From the Selection Method list, select the method for specifying the location of the excitation.To select the location of the excitation directly in the graphics window, choose Graphic Selection. To select the location of the excitation from a list of load sets, choose List Selection.

6. Select the load set to define as the excitation location:If you selected Graphic Selection, select the load set on the model where you want to define the excitation (each load set highlights as you move the mouse over it). A load set corresponds to a distributed attachment mode (generated from a load in the Dynamics subcase for the solution). If you selected List Selection, click . In the Select Excitation Location dialog box, select a load set from the list and click OK.

7. Click the button that appears next to the Function box and choose Function Manager.

8. In the XY Function Manager dialog box, select an existing function from the list. This function allows you to scale the load over time. Note: If you use multiple excitations in an event, the functions must have the same X Minimum and X Increment values. These values determine the number of points in the function. Functions with different numbers of points (or with the incorrect ordinate data types for the excitation type) appear in red and cannot be selected.You can also click New to create a new function.You can select Time functions with Ordinate Data Type of Unitless Scalar.

9. Click OK to accept the function and return to the excitation dialog box.

10. In the Scale Factor box, type a multiplier by which to scale the load. This allows you to tailor the excitation magnitude for the specific situation.

11. Click OK to finish creating the excitation.

The Response Dynamics Details View subpanel in the Simulation Navigator displays the details of the excitation, including the load set ID and scale factor.

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Create static excitations, Simcenter 3D 2021.1 Series

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