Define a velocity constraint normal to the model

The Normal type lets you define a velocity constraint with a magnitude and a +/– direction normal to the selected geometry or element faces.

1. Choose Home tab→Loads and Conditions group→Velocity .

2. In the Velocity dialog box, select Normal from the Type list.

3. In the Model Objects group, click Select Object and select the geometry or FE entity to which the velocity constraint will be applied.

4. In the Magnitude group, define the velocity constraint magnitude in one of these ways:Select Expression to use a constant value or expression to define the magnitude. For more information, see Expressions. Select Field to define velocity constraint magnitude that varies with frequency or time. For more information, see Using fields and expressions to define boundary conditions.

5. Click OK.The constraint is applied to the model.

How do I

Define a velocity constraint using magnitude and a single direction

Define a velocity constraint using components

Define a spatial velocity constraint using translational components

Learn more

Velocity constraint (Nastran)

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Define a velocity constraint normal to the model, Simcenter 3D 2021.1 Series

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