Assigning frequencies from all loads to subcases

One way to assign forcing frequencies to subcases in a solution is to select and edit subcases, and create a Forcing Frequencies modeling object that uses the list form, for example:

• Use Frequencies from All Loads (Freq) in the Simcenter Nastran FEM acoustics environment.

• Use Frequencies from All Loads list form in the Simcenter 3D Acoustics BEM environment.

You can assign forcing frequencies to all subcases in a solution by using the Use Frequencies from All Loads per Subcase command. This command automatically creates and assigns a forcing frequency modeling object that uses the list form, for example:

• Use Frequencies from All Loads (Freq) in the Simcenter Nastran or MSC Nastran environment.

• Use Frequencies from All Loads list form in the Simcenter 3D Acoustics BEM environment.

Note:

To assign forcing frequencies to a subset of subcases, in the Simulation Navigator, select the desired subcases, right-click one of them and choose Edit. Then create a Forcing Frequencies modeling object in the Solution Step dialog box.

Where do I find it?

Application	Pre/Post
Prerequisite	A Simulation file as the work part and displayed partMSC Nastran as the specified solverStructural as the specified analysis typeOne of the following as the specified solution type:SOL 108 Direct Frequency Response (Subcase - Direct Frequency)SOL 111 Modal Frequency Response (Subcase - Modal Frequency)Simcenter Nastran as the specified solverStructural or Vibro-Acoustic as the specified analysis typeOne of the following as the specified solution type:SOL 108 Direct Frequency Response (Subcase - Direct Frequency, Subcase - Random, and Subcase - Random Distributed Acoustic Plane Waves)SOL 111 Modal Frequency Response (Subcase - Modal Frequency, Subcase - Random, and Subcase - Random Distributed Acoustic Plane Waves)Simcenter 3D Acoustics BEM as the specified solverDirect Acoustic, Indirect Acoustic, or Indirect Vibro-Acoustic as the specified analysis type
Simulation Navigator	Right-click the solution node→Use Frequencies from All Loads per Subcase

How do I

Define forcing frequencies (Acoustics BEM)

Learn more

Boundary conditions (Acoustics BEM)

Defining acoustic sources and loads (Acoustics BEM)

Distributed Acoustic Plane Waves loading for indirect acoustic and vibro-acoustic analyses (Acoustics BEM)

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Assigning frequencies from all loads to subcases, Simcenter 3D 2021.1 Series

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