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Command reference help topics

Vibration CSD Selection dialog box

Modeling Object
Name Sets the name of the modeling object.
Label Sets a unique numerical identifier for the modeling object.
Properties
Use the same selection for first and second response Uses the same selection of FE entities and degrees of freedom for the second response as you selected for the first response.If you clear this check box, you can select a different set of FE entities and degrees of freedom for the second response. This is required to compare the response for a particular excitation.
First Response tab and Second Response tab
Options appear on the Second Response tab when the Use the same selection for first and second response check box is cleared.
Structural Nodes
Group Reference Lets you search for a node group by name or label, or lets you create a new one.Click More Options to search and filter groups. For more information, see Group Reference options.Structural Nodes SelectionLets you select the structural nodes from the model.
Degrees of Freedom
X Translation Y Translation Z Translation X Rotation Y Rotation Z Rotation Lets you specify the degrees of freedom of nodes in X, Y, and Z directions for translation and rotation.
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Vibration CSD Selection dialog box, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/xid1297458 · retrieved 2026-07-17