You can assemble multiple meshed models from the Workbench Project tab using the Mechanical Model component system, analysis type systems, and/or the External Model component system. That is, you can create multiple meshed model systems that link to one analysis environment that includes all of the individual model files.
Examples of this feature are illustrated below. Model cells are linked (Model-to-Model linking). You must first mesh all of the upstream systems in order to open the models in Mechanical.
Assembling Mechanical Model Systems
Assembling Mechanical Model Systems and Analysis Systems
Assembling Mechanical Model Systems and External Model Systems
Linked Model Common Properties
Similar to importing mesh-based .cdb files using the External Model component system or defining Mesh-to-Mesh Connections, Model-to-Model linking provides certain Project Schematic properties for the downstream Model cell prior to import; including: geometry length units, the number of copies of the source mesh to transform, and Rigid Transformation properties based on source locations.
Upstream Mechanical Model systems and analysis systems define the engineering data, geometry, and meshes for the assembled or downstream Mechanical Model system or the analysis system. The downstream analysis system can modify any existing specifications to the models once opened in Mechanical. For example, any suppressed bodies coming in from upstream systems can be unsuppressed and remeshed in the downstream environment. Once the models are imported into Mechanical, all application features are available.
Limitations and Restrictions for Model Assembly
Please note the following requirements for Model Systems:
Parts are made up of one or more bodies. As a result, when working with model systems, the application treats meshed parts and meshed bodies differently with regards to whether the mesh is transferred to the downstream system. Bodies meshed in an upstream system always transfer the mesh to the downstream system. However, parts (single-body or multi-body) meshed and suppressed later in an upstream system; do not have their mesh transferred to the downstream system. Consequently, when the downstream system supports unsuppression, any unsuppressed parts require you to generate a new mesh (unlike an unsuppressed body).
Geometry is not associative. As a result, if you refresh upstream model data into the downstream system, any scoping that you have performed on an object in the downstream analysis will be lost. To avoid losses to your analysis environment, make sure that you have properly defined any imported Named Selections or criterion-based Named Selections.
The Geometry object property Scale Factor Value, allows
you to modify the size of imported geometries in the upstream systems.
The scale factor value of newly imported geometries is
1.0. You can modify the value and that modified value
is expected to be preserved on updated models.
that when you assemble models and change the associated unit of measure,
you are limited by a scale factor limit of
1e3. This scale factor limit is the limit
for any combination of models. Factor values are totaled and anything
outside of this range is ignored. As a result, due to these tolerances,
scaled models, especially larger and/or combined models, sometimes
have problems importing geometry/mesh.
You need to perform material assignment in the upstream systems. The Material category property, Assignment, in the downstream system is read-only.
Model systems do not support the following features. If present, updates to the project fail for the system transferring data to a downstream system. You need to suppress or delete these features before transferring data.
Line Bodies (need to be deleted from geometry)
Interface layers Imported from ACP
You may wish to refer to the Mechanical Model section of the Workbench Help for additional information about this Workbench component system.
When an External Model component system is incorporated into model-to-model assembly, certain restrictions arise. Any suppressed bodies from other upstream systems can be unsuppressed in the downstream environment provided they were meshed prior to being suppressed in the upstream system. However, suppressed parts from other upstream systems can never be unsuppressed in the downstream environment when using the External Model component system. These restrictions also apply when using the options and/or .
During model assembly, the properties assigned to bodies in upstream systems are automatically transferred to the downstream systems. For multi-body parts, although the properties assigned to each body are transferred, the properties assigned to the parts themselves are not transferred. During refresh operations, when upstream data is modified and the downstream system is refreshed, the properties assigned to bodies in the downstream system are automatically updated, with the following exceptions:
These properties do not update if you modify them in the downstream system.
Note: It is recommended that you define all mesh controls and settings in your upstream systems.
Mesh settings on upstream systems take priority over any downstream mesh settings. That is, any changes to an upstream system will overwrite your mesh setting changes on your downstream system once updated. As a result, you could see differences between the assembled mesh and the settings of the downstream meshed model. Therefore, to have your downstream mesh to be updated per the mesh setting changes, you need to re-mesh your downstream model once it has been refreshed.
Mesh transfer will fail on assembled models if mesh controls are present in the downstream system. As needed, you can define mesh controls on the downstream system once you have assembled the model.