# Simcenter 3D Solutions Chladni Plate - Normal Mode Analysis - Part 5/5 - Run and postprocess the normal mode results

2022-07-26T14:55:09.000-0400
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## Summary

This tutorial shows how to analyze normal modes on Chladni plate using Simcenter 3D. This tutorial is divided into 5 parts: 1. Background of the Chladni plate 2. How to create Chladni Plate geometry and setup FEM and SIM files 3. Mesh and assign material properties to Chladni plate 4. Apply boundary conditions to Chladni plate 5. Run and postprocess the normal mode results

## Details

Chladni Plate - Normal Mode Analysis - Part 2/5 - How to create Chladni Plate geometry and setup FEM and SIM files
Chladni Plate - Normal Mode Analysis - Part 3/5 - Mesh and assign material properties to Chladni plate
Chladni Plate - Normal Mode Analysis - Part 4/5 - Apply boundary conditions to Chladni plate

Part 5: Run and postprocess the normal mode results

Step 14: Run the Analysis

•Right click on Solution 1 in the Simulation Navigator and select Solve
•Click OK
•Once the Analysis Job Monitor reports that the analysis has been completed, click Cancel on that window and then close the Information window

Step 15: Examine the Modal Results

•Expand the Results item in the Simulation Navigator
•Double click on the Structural item
•Expand the Structural item in the Post Processing Navigator. Expand Mode 5. Double click on Displacement – Nodal. The results displayed will be mode shape at 84.4Hz

Step 16: Examine the Mode Shape at 84.4Hz

Step 17: Examine the Mode Shape at 655.1Hz

Experimental comparison

Videos of Chladni plate experiment results are available on YouTube. The results typically show how white salt collects at the stationary locations of the plate, which contrasts against a black plate, creating a vivid depiction of the mode shapes.

This visualization can be replicated with the results of the finite element model by adjusting the contour plot settings. Step 18 shows how to do this. Collages of plate responses depicted in a manner that resembles the experimental results are provided after Step 18.

Step 18: Setup the Contour Plot to Replicate Chladni Plate Experiment Visualization

•Click on Edit Post View
•Select the Display tab
•Uncheck the Lighted checkbox
•Set Edges to None
•Select the Deformation tab
•Uncheck the Deformation checkbox
•Select the Legend tab
•Set Legend Extremes to Specified
•Set Min to 0 and Max to 0.5
•Select Grayscale in the Spectrum drop-down menu
•Check the Invert Spectrum checkbox and click OK