Design Constraint - Normal Modes dialog box

Modeling Object
Name	Sets a unique name for the design constraint.
Label	Sets a unique integer for the modeling object.The dialog box automatically displays the next available modeling object number. However, you might want to change this if you use a particular series of numbers to identify certain types of modeling objects.
Properties
Description	Sets a description for the design constraint.You can also click Description to open the Description dialog box. This lets you see more of the text that you type, as well as cut, copy, or paste text.This description appears only on this dialog box.
Response Definition	Response LabelSets a unique design response identifier.This label must begin with an alphabetic character and cannot exceed eight characters.Tip: To make it easier to identify this design constraint in the topology optimization spreadsheet, use a descriptive label.Response TypeSpecifies the response that you want to constrain.This list displays only responses that are appropriate for a normal modes subcase.Normal Modes Mode NumberSets the number of the normal mode whose response you want to constrain.Approximation CodeSpecifies whether to use direct or inverse linearization.
Limits	LowerSets the lowest acceptable value for the selected response.The unit of measure depends on the selected response. For example, if Response Type is set to Eigenvalue Modes (EIGN), you might specify the value in radians per second. For Normal Modes (FREQ), you might specify it in Hertz. If necessary, the exporter converts the unit of measure to the one required by Nastran.UpperSets the highest acceptable value for the selected response.Note: If you do not want to specify a lower or upper limit, leave the corresponding box blank. If you type 0, the solver interprets that as the constraint value.
Card Name	Displays the names of the Nastran bulk entries that will be generated when you solve the solution: DCONSTR and DRESP1.

How do I

Create a design constraint for a design sensitivity analysis

Create a design constraint for topology optimization

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Design constraints in design sensitivity analysis

Design constraints in topology optimization

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Design Constraint - Normal Modes dialog box, Simcenter 3D 2021.1 Series

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