Laminate Dynamics workflow

Step	Summary	Detailed Help topic
1.	Create the parent structural solution.	Create the Nastran SOL 103 Real Eigenvalues solution. You must set Solution Process to Laminate Dynamics on the General tab in the Solution dialog box.	Create or modify a solutionModal truncation effects
2.	Specify structural output requests.	Create a Structural Output Requests modeling object to request results output in the OP2 file when you solve the Nastran solution. Laminate Dynamics Simulation computes results only from Nastran results that are stored in the parent OP2 file.All ply and interlaminar failure theories require the stress output request except the maximum strain ply failure theory, which requires the strain output request.	Requesting output for Nastran analyses
3.	Constrain and solve the structural solution.	Constrain and solve the Nastran SOL 103 Real Eigenvalues solution. You should have a single excitation point, because the laminate dynamics solution process simulates a base excitation. The software does not check for this condition.	Simcenter Nastran and MSC Nastran boundary conditionsSolving models
4.	Set up a Laminate Dynamics solution process.	Create the Laminate Dynamics solution process and assign damping to your modes. You can optionally select a subset of the modes that Nastran computed. The Laminate Dynamics solution process reads the Nastran OP2 file. It does not query the FEM.	Create a dynamic simulationModify normal mode settings
5.	Create a random event.	Create the random event by selecting a random excitation PSD function as the base input and setting analysis parameters, including the desired confidence level. From the Random Event dialog box, you also specify the Laminate Random Output Requests modeling object in which you specify the desired output requests.	Create a random event
6.	Create a sine event.	Create the sine event by selecting an excitation function as the base input and setting the excitation frequencies and analysis parameters. From the Sine Event dialog box, you also specify the Laminate Sine Output Requests modeling object in which you specify the desired output requests.	Create a sine event
7.	Solve the dynamic simulation.	You can solve one base-driven event or simultaneously solve all the events that are present in the dynamic simulation.	Solve the dynamic simulation
8.	Display results.	The dynamic simulation can generate results that you can post-process in the Post Processing Navigator or PSD functions that you can manipulate in the XY Function Navigator.	Post-processingGraphs

How do I

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

Random Event

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

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Laminate Dynamics workflow, Simcenter 3D 2021.1 Series

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