Condensation algorithms for a dynamic superelement (Simcenter Samcef)

When you create a dynamic superelement, you can choose the following condensation algorithms:

Hintz

Hintz component mode algorithm.Note: You must choose the Hintz algorithm if you have defined Free Boundary Degrees of Freedom constraints in your model.

Craig and Bampton

Craig and Bampton component mode algorithm.Note: You can only choose the Craig and Bampton algorithm if you have not defined Free Boundary Degrees of Freedom constraints in your model.

Guyan

Standard Guyan algorithm.

For the Craig and Bampton and Hintz algorithms, you can also select the following options:

Base

Components modes base saving.The *_dy.u18 creation file is split into:A smaller *_dy.u18 file that contains only the reduced matrices to be used at the utilization stage.Combined with the Create Reduced Superelement File of the Output page that creates a small database, you can easily share your creation model with another user without exposing the entire initial model.You can also transfer files of limited sizes. For additional information, see Reduced superelement database (Simcenter Samcef).A smaller *_30_dy.u18 file that contains only the component modes for the recovery stage.

Constraint

Constraint modes restitution.

Base Constraint

Enable both options above.

Where do I find it?

Application	Pre/Post
Prerequisite	A Simulation file as the work part and displayed partSimcenter Samcef as the specified solverStructural as the specified analysis typeSuperelement Creation as the specified solution typeDynamic as the specified Superelement Type
Location in dialog box	Analysis page → Condensation Algorithm check box.

Look up more details

Solution dialog box (Simcenter Samcef Superelement Creation Analysis)

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Condensation algorithms for a dynamic superelement (Simcenter Samcef), Simcenter 3D 2021.1 Series

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