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Optimization
Setup an Optimization in HyperMesh.
Design Interpretation - OSSmooth
OSSmooth is a semi-automated design interpretation software, facilitating the recovery of a modified geometry resulting from a structural optimization, for further use in the design process and FEA reanalysis.
Run OSSmooth

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What's New
View new features for Altair HyperWorks 2024.1.
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Create, edit, and cleanup geometry.
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Morph
Rapidly change the shape of the FE mesh without severely sacrificing the mesh quality.
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Create a reduced ordered model to facilitate optimization at the concept phase.
Design Space
Workflow to support topology optimization model build and setup.
Optimization
Setup an Optimization in HyperMesh.
- Structural Design and Optimization
  Structural design tools include topology, topography, and free-size optimization.
- Setup Optimization in HyperMesh
  Simple steps for setting up your optimization in HyperMesh.
- Design Interpretation - OSSmooth
  OSSmooth is a semi-automated design interpretation software, facilitating the recovery of a modified geometry resulting from a structural optimization, for further use in the design process and FEA reanalysis.
  - OSSmooth Parameter File
    Parameter statements in the OSSmooth parameter file.
  - Run OSSmooth
  - Interpretation of Topology Optimization Results
    Topology optimization results are interpreted to provide an iso-density surface based on the volumetric density information of a topology optimization, which is conducted using OptiStruct.
  - Laplacian Smoothing
    Laplacian smoothing can be used in the smoothing of the results of topology optimization.
  - Interpretation of Topography Optimization Results
    The autobead feature of OSSmooth allows OptiStruct topography optimization results to be interpreted as one or two level beads.
  - Interpretation of Composite Free Sizing Optimization Results
    A free sizing optimization on composite materials is run to determine the optimal ply shapes and fiber orientation/material selection.
  - Shape Optimization Results, Surface Reduction and Surface Smoothing
    OSSmooth may also be used to reduce and smooth surfaces or the surfaces of a domain.
  - FEA Topology for Reanalysis
    FEA topology for reanalysis provides an iso-density surface based on the volumetric density information from a topology optimization. Through tetrameshing for 3D models and inheriting boundary conditions, the results from FEA topology can be used for quick reanalysis.
  - FEA Topography for Reanalysis
    The FEA topography option in OSSmooth allows the results from an OptiStruct topography optimization to be interpreted as one or two level beads and recover boundary conditions upon geometry extraction. An option for iso surface is also provided for combined use, which performs the same functionality as FEA topology, with FEA topography.
Design Explorer
Multi-disciplinary design exploration and optimization tools.
Validate
Validate the model built before running solver analysis.
Analyze
Models require loads and boundary conditions in order to represent the various physics and/or physical equivalents to bench and in-use testing.
Axisymmetry
Reduce a full 3D model with axisymmetric surfaces while accounting for imperfections.
Concept Modeling
Tools and workflows that are dedicated to rapidly creating new parts for specific use cases, or amending existing parts. The current capabilities are focused on stiffening parts.
Crash and Safety
Tools used for crash and safety analysis.
Airbag
Use airbag folder utilities and export a resulting airbag in a Radioss deck.
Aerospace
Essential utility tools developed using HyperMesh-Tcl.
Aeroelasticity
Import an aeroelastic finite element model with Nastran Bulk Data format.
Certification
Framework to plug certification methods to assess margin of safety from the model and result information.
PhysicsAI
Use PhysicsAI to build fast predictive models from CAE data. PhysicsAI can be trained on data with any physics or remeshing and without design variables.
Results Data
Results data can be post-processed using both HyperMesh and HyperView.
Developer
The Developer ribbon contains tools for automation and customization.
Plot Data
HyperGraph is a data analysis and plotting tool with interfaces to many file formats.
Multibody Modeling
MotionView is a general pre-processor for Multibody Dynamics.
Media Files
MediaView plays video files, displays static images, tracks objects, and measures distances.
Tabulate Results
Use TableView to create an Excel-like spreadsheet.
Text Files
TextView math scripts reference vector data from HyperGraph windows to automate data processing and data summary.
Publishing and Reporting
Create, define, and export reports.

Run OSSmooth

Run OSSmooth from the command line.
1. Enter ossmooth <prefix>.oss.
Run OSSmooth from the HyperMesh OSSmooth tool.
1. From the Optimization ribbon, click the arrow next to the Design Interpretation tool set name and select OSSmooth.
2. In the dialog, choose either Geometry, FEA reanalysis, or Ply shape for the design interpretation.
3. In the file field, select the OptiStruct input file (<prefix.fem> and/or <prefix.sh> and/or <prefix.grid >).
4. Edit the OSSmooth parameters.
5. Click Run.
OSSmooth (for geometry) will write a new <prefix.oss> file with the screen settings and load the geometry recovered into HyperMesh if the data format is IGES, STL, or Nastran. FEA topology and FEA topography will update the model in HyperMesh without outputting the result; if required, data can be exported from HyperMesh.

OSSmooth invoked from the OSSmooth tool in HyperMesh checks out 42 Units (21 leveled and 21 stacked).