Random Event

Use the Random Event command to:

• Specify a base excitation PSD function.

• Specify the excitation coordinate system.

• Specify the excitation axis.

• Set the following analysis parameters:PSD and peak evaluation frequency lower and upper bounds.Confidence level. Enter the confidence level directly or specify an equivalent Gaussian number of standard deviations, from which the software computes the confidence level.Define whether the displacement-based results are absolute, or relative to the base excitation.

• Define output requests using a Laminate Random Output Requests modeling object.

You create a random event in an active dynamic simulation. A dynamic simulation can contain multiple random events that you can solve one by one or all at the same time.

DynamicSim1
Normal Modes [20]
Random1
Results
Results
Random2
Results
Results

Where do I find it?

Application	Pre/Post
Prerequisite	An active dynamic simulation solution process
Command Finder	Random Event
Simulation Navigator	Right-click the dynamic simulation node→Create Random Event

How do I

Laminate Dynamics workflow

Create a dynamic simulation

Filter modes with small modal effective mass

Modify normal mode settings

Create a random event

Create a sine event

Solve the dynamic simulation

Learn more

Simcenter 3D Laminate Dynamics

Sine Event

Look up more details

Simulation Navigator for Dynamic Simulation

Right-click commands for Dynamic Simulation

Laminate random results

Laminate sine results

Laminate Dynamics Details View subpanel (Simulation Navigator)

Supported elements

Damping definition

Modal truncation effects

Dynamic simulation output files

Confidence level in peak results computation

Supported failure theories

Running a Laminate Dynamics solution process from a command line

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Random Event, Simcenter 3D 2021.1 Series

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