Create a rotor region

Use the procedure to define rotor regions that you then add to the rotor assembly. In addition to selecting the FE entities that comprise the rotor, you set the coordinate system, speed method, and damping options.

1. Choose Rotor Dynamics tab→Rotor Modeling group→Define Rotor Region .

2. In the Region dialog box, in the Rotor Objects (ROTORG) group, select the FE entities that comprise the rotor model in the graphics window to define the rotor region.You can select elements, meshes, or parent geometric entities.

3. In the Parameters (ROTORD) group, from the CSYS list, select the coordinate system for this rotor.If the absolute coordinate system points to the Z-axis as the rotation axis, select Global.If the absolute coordinate system does not point to the Z-axis as the rotation axis, select a different type of coordinate system and define the Local CSYS with the local Z-axis in the direction of rotation of the rotor.The Z-axis of a rotor always defines the direction of rotation of the rotor.

4. Set the rotor speed definition and reference frequencies as appropriate for your analysis.

5. Click OK.

How do I

Create connection elements between coincident nodes with CBEAR2 elements

Define rotor bearing or bushing properties

Define a rotor

Define the rotor dynamics solution parameters

Create an unbalance mass

Define forcing frequencies

Define nonlinear transient parameters

Set the duration of the simulation

Create a modeling object

Assign a modeling object to a solution or solution subcase

Learn more

Rotor dynamic analysis (SOL 414)

Modeling axisymmetry (SOL 414)

Modeling cyclic symmetry (SOL 414)

Creating connection elements on a rotor model (SOL 414)

Damping (SOL 414)

Quick links

Command reference

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Create a rotor region, Simcenter 3D 2021.1 Series

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