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Nastran environment > Nastran rotor dynamic analysis (SOL 414)

Create a modeling object

Use this procedure to a create modeling object for your solution or solution subcase. Modeling objects contain various settings that determine how the solver processes your model.

  1. Choose HomePropertiesModeling Objects .

  2. In the Modeling Objects Manager dialog box, from the Type list, select the modeling object you want to create for your solution.The Type list displays modeling objects that are specific to the solver. Some modeling objects, such as Bulk Data Echo Request, Complex Eigenvalue, and so on, appear as options for several solvers and solution types. Other modeling objects, such as Aerodynamic Divergence Data, Forcing Frequencies, and so on, appear as options for only a few specific solvers and solution types.

  3. Click Create.A dialog box for the modeling object you are creating opens.

  4. Complete the options in the modeling object dialog box.

  5. Click OK.In the Modeling Objects Manager dialog box, the new modeling object appears in the Selection list in the Selection group. You can edit, copy, and delete modeling objects from this list.

  6. Repeat steps Create a modeling object–Create a modeling object to create additional modeling objects.

  7. Click Close.

How do I

Create connection elements between coincident nodes with CBEAR2 elements

Define rotor bearing or bushing properties

Create a rotor region

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

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

Pre/Post video examples

Bulk Entry Descriptions

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Create a modeling object, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/xid1900771 · retrieved 2026-07-17