Customizing a Nastran input file with user defined text

In some cases, you may want to insert either specific text or an entire text file into your solver input file. You can create a User Defined Text type of modeling object to add that text. For example, you can use User Defined Text to include solver commands or options that are not yet supported in the Pre/Post user interface in your solution.

For Nastran solutions you can create a User Defined Text modeling object to specify:

• Either the text to add or the name of the file to include or merge into the input file. If you want to include a file, the software includes the input file with a Nastran INCLUDE file management statement.

• Whether to add the text as a comment (using the $ Nastran syntax) to the beginning or end of the section.

You use the User Defined Text option in the Solution dialog box to specify the section of the input file in which to insert the User Defined Text modeling object.

See Inserting External Files with INCLUDE in the Simcenter Nastran User's Guide for more information.

Where do I find it?

Application	Pre/Post
Prerequisite	An active FEM or Simulation with Nastran as the specified solver
Command Finder	Modeling Objects
Menu	Insert→Modeling Objects

Learn more

Simcenter Nastran and MSC Nastran environments

Previewing Nastran solver syntax

Controlling the Nastran iterative solver

Allocating DBset size

Modeling thermal strain in a Nastran analysis

Printing bulk data in your results file

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Simcenter Nastran and MSC Nastran boundary conditions

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Customizing a Nastran input file with user defined text , Simcenter 3D 2021.1 Series

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