Evaluate nodal function responses

This procedure assumes you have created an event and applied excitations to your model.

1. In the Simulation Navigator, right-click your Event node and choose Evaluate Function Response→Nodal.

2. In the Evaluate Nodal Function Response dialog box, under Result, choose the type of result to evaluate. Note: The result types available depend on the output requests you enabled in the Structural Output Request for the solution. For more information, see Define Response Dynamics result types.

3. In the graphics window, select the node or nodes on the model where you want to measure the response. The software generates a response function for each node you select (you can select up to 100 nodes).

4. (Optional) For displacement, velocity, or acceleration excitations, under Observation Node, select Relative to to calculate the motion relative to a single node you select. Otherwise, the response is evaluated relative to the part's origin.

5. If you selected Relative to, click and then select the response reference node on the model.

6. Under Response Request, select the method for specifying the direction of the response evaluation. For example, if the excitation was defined in the Y direction, you probably want to evaluate the response in the Y direction.To use the Vector tools to specify the direction of the response evaluation (by selecting a node, vertex, or edge), select User Defined Direction. For information about using the Vector tools, see Vector dialog box. To select a direction component of the nodal displacement coordinate system, select Data Component. In the Data Component list, select the direction for the evaluation.

7. Under Data Component, if you are evaluating stress or strain, select the direction for the evaluation. The data components you can choose depend on the Result Type. For more information about data components for various result types, see Result types and results and Vector and tensor components and invariants.

8. Under Beam Element, if you are evaluating stress or strain for beam elements, select the stress recovery point on the beam cross section where you want to recover response results. The letters C, D, E, and F correspond to the four stress recovery points on a typical beam section. All recovers results for all four recovery points.

9. Under Shell Element Layer, if you are evaluating stress or strain for shell elements, select the region over which the stress and strain should be calculated: Top, Middle, Bottom, or All.

10. Under Output Setting, select the method for displaying and/or storing the generated response function. Store to AFU — Saves the generated response function(s) to an AFU file. This option is useful if you will be evaluating response results and want to use the plotted response function to define the range of your evaluation (by selecting data points on the graph). The AFU file is created automatically with the same name as your simulation file, in the working directory where your simulation file is located.XY Graphing — Plots the response function as an XY graph in the graphics window.

11. If you selected Store to AFU, type a prefix in the Record Name Prefix box to identify this function record in the AFU file.

12. Click OK. The software prompts you to select a viewport or create a new window for the plot.

13. Choose where you want to display the response function. If you selected more than one node at which to evaluate the response, the functions for all selected nodes are plotted in the graph, with different-colored curves.

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Evaluate nodal function responses, Simcenter 3D 2021.1 Series

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