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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.
Shape Optimization Results, Surface Reduction and Surface Smoothing
OSSmooth may also be used to reduce and smooth surfaces or the surfaces of a domain.

Welcome
What's New
View new features for Altair HyperWorks 2024.1.
Get Started
Learn the basics and discover the workspace.
Tutorials
Learn more about the Altair HyperWorks suite of products with interactive tutorials.
Startup Procedures and Customizations
Start and configure the applications.
Tool Finder
View a list of deprecated panels and their newer, equivalent workflows.
Manage Files and Data
Create, open, import, and save models.
Sessions and Report Templates
Set up sessions and create report templates.
Interface with External Products
Solver interfaces supported in HyperMesh.
Entities and Solver Interfaces
A solver interface is made up of a template and a FE-input reader.
Browsers
Browsers provide a structured view of model data, which you can use to review, modify, create, and manage the contents of a model. In addition to visualization, browsers offer features like search, filtering, and sorting, which enhance your ability to navigate and interact with the model data.
Sketching
Create and edit 2D parametric sketch geometry.
Topology
Create, edit, and cleanup geometry.
FE Geometry
FE geometry is topology on top of mesh, meaning CAD and mesh exist as a single entity. The purpose of FE geometry is to add vertices, edges, surfaces, and solids on FE models which have no CAD geometry.
Meshing and Elements
Explore the different types of mesh you can create in HyperMesh and create and edit 0D, 1D, 2D, and 3D elements.
Model Build and Assembly
Create, organize and manage parts and subsystems.
Composites
HyperMesh composites modeling.
Connectors
Create connections between parts of your model.
Morph
Rapidly change the shape of the FE mesh without severely sacrificing the mesh quality.
Skeleton Modeling
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.

Shape Optimization Results, Surface Reduction and Surface Smoothing

OSSmooth may also be used to reduce and smooth surfaces or the surfaces of a domain.

The parameter statements pure_surf_reduction and pure_surf_smoothing can be used for this purpose.

The file defined by input_file must be in the OptiStruct Bulk Data format, and OSSmooth can smooth the surface or the surfaces of a domain of the model.

Figure 1. Parameter File

#general parameters
input_file            surf
output_file           surf.stl
output_code           3 

#specific parameters
pure_surf_smoothing   2  10  30.000
pure_surf_reduction   1  10.000