Replace Part Operation Properties

The replace part operation allows you to replace parts in a simulation as part of the simulation pipeline.


Obtain Mesh From	Specifies how the part is replaced. Select Existing Part to replace the target part with one that is located in the Geometry > Parts node. Select File to use an external file for the replacement.
Source Part	Specifies an existing part to replace the target part. Choose an existing part from the Geometry > Parts node. This property becomes active when you set Obtain Mesh From to Existing Part.
File	Specifies an external file that replaces the target part. This property becomes active when you set Obtain Mesh From to File.
Target Part	Specifies the part to replace in the pipeline. Typically this is a leaf-level part that you create to contain the replaceable part in the pipeline. For a list of parts that you can use as a target part, see Replacing a Part in a Parts-Based Mesh.
Default Target Part Surface/Curve/Point	All unmapped faces, edges, and vertices are assigned to this part surface/curve/point respectively.

Match Part Entities Properties

When replacing a part using an existing part, and some of the parts have named part surfaces, by default, you will lose these named surfaces as they are merged into the Default part surface. To keep the named part surfaces, you can create equivalent part entities.


Match Part Entities	Allows you to create equivalent part entities from the source part to the target part. When activated, the Create Equivalent Part Entities option creates equivalent part surfaces, curves, and points.

Assembly Import Properties

The assembly import properties appear when replacing composite parts.


Clear Existing Parts	When activated, clears the mesh on all existing parts in the target assembly. By default, this option is activated. Leave this option activated to retain the unmatched parts in the target assembly and clear the mesh. In this workflow, the parts are preserved so that downstream operations and controls retain the parts in their inputs. This option is useful if you expect to bring the parts back again in the future. Deactivate this option to retain the unmatched parts in the target assembly, including the mesh. This is useful when you are replacing only a few parts in the target assembly and wish to retain all other existing parts in the target assembly.
Create New Parts	When activated, creates new parts in the target assembly for unmatched parts from the source assembly. By default, this option is activated.
Delete Empty Parts	When activated, deletes empty parts in the target assembly. By default, this option is deactivated. Activate this option in conjunction with the Clear Existing Parts option to delete all unmatched parts from the target assembly.

CAD Import Properties

When importing CAD files, there are instances where there are multiple bodies with the same name. A CAD Import node appears when a CAD file is chosen as the input. The node contains options on how to handle parts with multiple bodies.


Merge Parts by Name	When activated, assigns all parts with a similar name to a single part. If you want to keep parts with similar names separate, deactivate the Merge Parts by Name option.
Create One Part Surface per Part	When activated, the names that are assigned in CAD are ignored. and all faces are assigned to a single part surface for each part.
Create Part Contacts	When activated, finds contacts between imported bodies. You can specify the tolerance for finding contacts in the Coincidence Tolerance field.
Coincidence Tolerance	Specifies the tolerance for finding contacts between imported bodies. This option becomes available when you activate the Create Part Contacts option.

JT Format Properties

When you import a JT format file as a source file, a JT Import node appears. This node controls the options specific to the behavior of JT files in the replace part operation.


JT Import	Contains import options for JT files. Import CAD, when activated, imports the CAD data from the JT file. Additional options, CAD Import and Tessellation Options, appear when you activate the Import CAD option. For more information about the CAD Import options, see Replace Part Operation Properties: CAD Import Properties. To access the Tessellation Options, click (Property Customizer). For more information about the Tessellation Options, see Tessellation Density and Show Detailed Tessellation Parameters.
Surface Mesh Import	Contains import options for surface mesh data. Units specifies the units to use when importing the file. Match by Name, when activated, uses names to map faces, edges, and vertices to surfaces, curves, and points respectively.