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Response Dynamics

Deactivate modes by mass limit in Response Dynamics

You can deactivate modes in a SOL 103 Response Dynamics solution by specifying an effective mass limit.

If any mass component is below the limit, the mode is deactivated. Both translational (X, Y, Z) and rotational (RX, RY, RZ) effective mass is considered by the effective mass limit you specify.

For example, if you specify 25% as the mass limit you see the following in the Response Dynamics Details View subpanel listing of the normal modes. In this example, note that modes 2, 6, 9, and 10 are deactivated.

Response Dynamics modes filtered by 25.0%. Active modes are marked with an *.

Note:

To activate or deactivate all the modes, right-click the Normal Modes node, and select Activate All or Deactivate All.

How do I

Create a Response Dynamics solution process

Clone a Response Dynamics solution process

Check validity of mode shapes

Select or remove modes to analyze in Response Dynamics

Clear the obsolete status of a Response Dynamics solution process

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Simcenter 3D Response Dynamics

Response Dynamics workflow

Simulation Navigator for Response Dynamics

Post processing response results after clearing the obsolete status

CBUSH element force in Response Dynamics

Random Base Excitation

Response Dynamics Function Toolkit

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Response Dynamics Details View subpanel (Simulation Navigator)

Response Dynamics status labels

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Deactivate modes by mass limit in Response Dynamics, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/xid1929050 · retrieved 2026-07-17