Linear transient response solution options (Simcenter Samcef)

To set up solver options for a Linear Transient Response Analysis solution, you can:

• Select whether to include modal superposition. Modal superposition solves an approximation of the problem based on the number of modal modes you specify. Solving with modal superposition is faster than solving with direct integration. When you enable modal superposition, you can also:Select the Effective Masses Option and related options such as Calculation of the Modal Participation Factors Options and Calculation of the Modal Reactions. Select the Solver Type algorithm to use. If you select the Sparse solver, you can select a solver that provides the best computational efficiency.

• Define the Default Reference Temperature (.GEL TEMP). For more information, see Reference and Initial Temperatures in Samcef (Simcenter Samcef).

• Define Prolog and Epilog text. For more information, see Customizing a Simcenter Samcef input file with user defined text.

• Define time discretizations to set the times at which the solver outputs results. When you set the time discretizations, you must set adequate intervals to ensure that you capture the responses to the excitations defined in the excitation sets. For example, if time discretizations are too large, you may miss entire cycles, or highs and lows, of the responses to the excitations.Each excitation set defines one dimensionless function of time. Each excitation set contains one load set, and each load set contains one or more loads (constants). The loads have dimensions of force, pressure, and so on. For more information, see Transient Excitation Set (Simcenter Samcef).

• Specify the following Output Requests:Reaction, stress, and so on using the Structural Dynamic Response Output Requests modeling objectNodal time history using the Linear Transient 9xxx Nodal Request modeling objectElement time history using the Dynamic 9xxx Element Requests modeling object

• Activate Chaining with a previously solved nonlinear solution. For more information, see Chaining solutions (Simcenter Samcef).

User-defined solver parameters

In the User page of the solution, you can manually define solver parameters for the .ALGO, .SAM, .GEL, or .DGE Samcef commands.

Note:

The text you add must be compliant with the Simcenter Samcef command language terminology. For more information, see the Simcenter Samcef documentation.

How do I

Create or modify a solution

Learn more

Results codes in structural analyses (Simcenter Samcef Structure)

Customizing a Simcenter Samcef input file with user defined text

Look up more details

Solution dialog box (Simcenter Samcef Linear Static Analysis)

Results codes support (Simcenter Samcef Structure and Thermal)

Linear transient response solution options (Simcenter Samcef), Simcenter 3D 2021.1 Series

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