Creo Topology Optimization > Examples > Example 5: Topology Design to Maximize Modal Frequency
Example 5: Topology Design to Maximize Modal Frequency
Use the model support.prt for this example.
This example demonstrates how to use topology optimization to design a light and stiff structure with modal analysis.
Highlighted features
Maximize modal frequency, Mass Fraction constraint
Optimization problem statement
The following optimization problem will be created and solved:
Maximize first modal frequency
Subject to:
Mass fraction <= 0.3
The example contains one analysis. The loads/constraints are shown in the image below:
Analysis settings:
Eigenvalue method: SMS
Frequency search range: 0–1000
Number of modes to find: 6
Mode Tracking: No
Mesh control
Maximum element size: 4 mm
Topology region
The component, excluding volume region 1 and 2, as shown in the image below:
Init. mass fraction: 0.3
When you use mass fraction as constraint, it is recommended to use the same constraint bound value as the initial mass fraction value.
Fabrication constraints:
Design objective
Maximize first modal frequency
Design constraint
Mass fraction <= 0.3
Optimization study
The study refers to the defined topology region, design objectives, and constraints
Advanced settings:
For analysis output files, only the first and last cycle are requested.
Use default settings for all other analysis and design parameters.
Topology Result
Topology density isosurface
Topology element density
Geometry Reconstruction
Tessellated model
Solid model