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Geometry Modeling
Manage CAD, FE, and 2D parametric sketch geometry.
Model Build and Assembly
Create, organize and manage parts and subsystems.
Bulk Import
Use the Bulk tool to load all CAD files in one go, sanitize names, remove small bodies, split parts per body, and save a representation for each part.

Welcome
What's New
View new features for HyperMesh CFD 2024.1.
Get Started
Learn the basics and discover the workspace.
Onboarding Resources
Discover HyperMesh CFD functionality with interactive tutorials and community resources.
Solution Layers
Solution-centric workflows allow you to traverse through modeling environments using a dedicated UI layer.
Manage Files and Data
Create, open, import, and save models.
Convert
Use the Convert tool to convert entire models between data types.
Geometry Modeling
Manage CAD, FE, and 2D parametric sketch geometry.
- Sketching
  Create and edit 2D parametric sketch geometry.
- Geometry
  Create, edit, and cleanup geometry.
- Discrete Geometry
  Work with discrete geometry like FE Geometry and floating elements.
- Model Build and Assembly
  Create, organize and manage parts and subsystems.
  - Part Browser
    Use the Part Browser to create, organize and manage the CAE part structure/hierarchy.
  - Mechanism Browser
    Create and articulate a kinematic mechanism based on FE mesh using the Mechanism Browser.
  - Organize Assemblies, Parts, and Bodies
    Use the Part Browser and the right-click menu options to organize your model into a hierarchy of assemblies, parts, and bodies.
  - Bulk Import
    Use the Bulk tool to load all CAD files in one go, sanitize names, remove small bodies, split parts per body, and save a representation for each part.
  - Part Controls
    When you have large CAD models, such as a full vehicle model - it can be difficult to bring the entire model into the session. Use the Part Controls tool to shatter CAD files for each part, allowing you to mesh those parts in batch without bringing them into the session.
  - Load and Save Part Representations
    Use the Representation tool to load and save representations for selected parts. This is useful for storing and retrieving data as required.
  - Group Entities
    Collect entities, such as parts and surfaces.
  - Find Duplicates
    Use the Duplicates tool to locate tiny and duplicate parts in b-spline CAD models.
  - Merge and Split Parts
    Use the Merge/Split tool to merge parts or split them by connectivity or by face.
  - Find and Isolate Specific Geometry Types
    When performing cleanup or defining simulation parameters, it can be helpful to first find and isolate certain types of geometry. This will give you a better idea of the areas in the model you need to focus on.
  - Classify Parts
    Set up and use machine learning (ML) models to automatically classify parts under user-defined labels and into part sets.
  - View Entity Count
    View the number of entities present in the current model.
  - Assign Metadata
    Assign metadata values to selected entities. Once assigned, metadata can be used in advanced selection.
Meshing
Generate surface/volume mesh by defining mesh controls, or interactively create and edit 2D surface mesh.
Setup
Prepare your model and run the simulation.
Post-Processing
Post-process the simulation results by creating visualizations and measurements.
Automation
Automate simulation processes with templates and utility scripts.
Design Exploration
Once the baseline model is prepared, you can define morph volumes, morph geometry, create design shapes and run DOE studies. These tool work for both AcuSolve and ultraFluidX-based workflows.
Solver Help
More resources for AcuSolve and ultraFluidX solvers.

View All Altair HyperWorks Help

Bulk Import

Use the Bulk tool to load all CAD files in one go, sanitize names, remove small bodies, split parts per body, and save a representation for each part.

Put all the CAD files you want to load into one folder.
These should all have the same CAD file extension.
From the Assembly ribbon, click the Bulk tool.

Figure 1.
Click Browse and select the folder you just put your CAD files in.
Specify the file extension.
Define any additional options.

Sanitize part names

Removes special characters from part names. This is important for saving parts files as representations, and it is recommended you keep it on.

Remove small bodies

Removes any bodies with bounding box smaller than the defined dimensions. It is recommended you keep it on.

Split part per body

If a part contains more than one body, it creates a part per body so each part has just one body. It is recommend to turn on if CAD is organized in a way that all bodies are under a part.

Save part representation

Saves an hm file per part so you can load these parts easily. It is recommended you keep it on.
Click Bulk Import.
One the bulk import is done, in your CAD folder there will be:
- A text file with a summary of import timing.
- An hm file for each input CAD/stl file. This hm file is very small and just contains assembly hierarchy and info about where the file for each part is located.
- A "RepFiles” folder with a sub-folder for each input file. In each input file folder there is an hm file for each part.
Important: After bulk import, do not move the “RepFiles” folder.
Figure 2.