Home
Analyze
Models require loads and boundary conditions in order to represent the various physics and/or physical equivalents to bench and in-use testing.
Apply Constraints
Place constraints or enforced displacements on a model. This is accomplished by assigning a degree of freedom (DOF) constraint to the node or set.

Welcome
What's New
View new features for Altair HyperWorks 2024.
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.
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.
- Apply Pressures
  Create pressure loads on elements by applying a load, representing pressures, to a 1D or 2D element, or to the face/edge of a solid element.
- Apply Forces
  Create concentrated forces by applying a load, representing forces, to a node or set.
- Apply Moments
  Create concentrated moments by applying a load, representing moments, to a node or set.
- Apply Constraints
  Place constraints or enforced displacements on a model. This is accomplished by assigning a degree of freedom (DOF) constraint to the node or set.
- Apply Velocities
  Create concentrated velocities by applying a load, representing velocities, to a node or set.
- Apply Accelerations
  Create accelerations by applying a load, representing accelerations, to nodes or sets.
- Apply Temperatures
  Create temperature constraints by applying a load that represents temperatures to nodes, components surfaces, or sets.
- Apply Flux Loads
  Create concentrated fluxes by applying a load, representing fluxes, to element nodes.
- Update Load Types and Equations
  Apply load type changes for a load or equation to your model.
- Pretension Manager
  Use the Pretension Manager tool to create and edit 1D and 3D pretension bolt loads and bolt sections for the OptiStruct solver.
- Setup DDAM Analysis
  Setup a DDAM analysis for Abaqus, and use the Shock Spectra curves for a subsequent Response Spectum Analysis.
- Fatigue Process
  Create or open a fatigue analysis setup process.
- Frequency Response Process
  Setup a frequency response analysis with a series of step-by-step process templates.
- Contour Loads Tool
  Use the Contour Loads utility to create contour plots of applied loads and boundary conditions contained within load collectors.
- Loads Summary Tool
  Use the Loads Summary tool to create a summary of the loads (node-based forces or moments, and element-based pressures) applied to a model
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.
Collaboration Tools
Explore, organize and manage your personal data, collaborate in teams, and connect to other data sources, such as corporate PLM systems to access CAD data or publish simulation data.

View All Altair HyperWorks Help

Apply Constraints

Place constraints or enforced displacements on a model. This is accomplished by assigning a degree of freedom (DOF) constraint to the node or set.

Constraints are load config 3 and are displayed with a triangle that connects to the node, with the dof numbers that apply to the node beside the triangle.

Note: In the Radioss, Abaqus, and LS-DYNA profiles, load entities are created immediately upon entering the tool. Use the Entity Editor to modify any properties. In all other solver profiles, load entities aren't created until you make your selections then click Create.

From the Analyze ribbon, click the Constraints tool.

Figure 1.

Note: Depending on the solver interface, the Constraints tool may be part of a ribbon group menu along with other tools, such as MPCs or Equations. Click the arrow besides the icon to view the tool if it is not currently active.
Select the keyword to create from the Load Type menu.
The available types depend on the current solver interface.
Choose the entities to which the constraints will be applied.
Select whether the constraint should be a constant value or use curve-based values. If curve, choose the desired curve and change the value to alter the curve’s X scale (for example, time).
Select the degree of freedom that you wish to constrain, then enter a value for the constraint.
If working in a controller, click Create.