Define the Design Space for a Topology Optimization
You can select the body that is modified by a topology optimization and define any regions to preserve (exclude) from the optimization.
Before you begin: You must define the regions to be preserved by creating
partitions in the Simulation Model Preparation
app.
For more information, see Simulation Model Preparation.
For hex meshed regions, you must use the partition hex mesher to accurately create the partitions that define the design space and preserved regions.
-
From the Design Variables section of the action bar,
click Design Space
.
-
Specify the preserved volumes by clicking the icon in the
Volumes column of the Preserve Volumes
table.
The icon switches between
for preserved
volumes and 
for volumes included
in the design space.The mass of each volume is displayed in the table. The ratio of each volume's mass to the total mass is also shown. - Optional:
Click Add preserved region
in the toolbar above the Preserve Volumes from Faces
table, and select one or more faces from the model.
All elements attached to the selected faces are defined as preserved volumes.Tip: You can also select publications or a face group.
The mass of the preserved region is estimated based on the mesh element size. A summary of the total mass assigned to preserved regions and the ratio of the preserved mass to the total body mass is displayed at the bottom of the dialog.
, and select a
face.
to create a
control that enforces a smooth transition between regions.