Transient Excitation Set

Use a Transient Excitation Set to define a time-dependent dynamic load or enforced motion load for use in a transient response analysis.

In a transient excitation load set, you define a load as a function of time, using either an expression or a field. You can also define a dynamic load time delay directly in the Transient Excitation Set dialog box.

Adding loads to a Transient Excitation Set

You cannot add individual loads to a dynamic load set, but you can add a static load set, and add loads to that.

• You can add an Applied Load static load set only to a transient excitation load set of type Applied Load or Distributed Force.

• You can add an Enforced Motion type of static load set only to a transient excitation load set of type Enforced Displacement, Enforced Velocity, or Enforced Acceleration. The type of motion created by an Enforced Motion Load is specified by the type of transient excitation load set into which you place the static load.

Adding a static load set to a Transient Excitation Set

• When you select the Automatic Creation check box, the software automatically creates an empty Load Set (General) and adds it to the Transient Excitation Set.

• When you clear the Automatic Creation check box, you can choose a static load set from the list, or choose None and create your own, empty Load Set (General).

Corresponding Nastran Syntax

The Transient Excitation Set corresponds to the Simcenter Nastran TLOAD1 bulk entry.

The Label field in the Transient Excitation Set dialog box assigns the SID or load set identification number for Simcenter Nastran.

Where do I find it?

Application	Pre/Post
Prerequisite	Simcenter Nastran, MSC Nastran, or Simcenter 3D Multiphysics as the specified solver
Simulation Navigator	Right-click Solver Sets→New→Transient Excitation Set

How do I

Create a load set

Add a load to a load set

Learn more

Load sets

Load Set (General)

Acoustic Load Set

Acoustic Source Load Set (Legacy)

Frequency Excitation Set

Bolt Load Set

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Transient Excitation Set, Simcenter 3D 2021.1 Series

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