2023

Home
Multibody Modeling
MotionView is a general pre-processor for Multibody Dynamics.
Vehicle Modeling
Explore the various vehicle modeling tools.
Components Library
Bushings
Use the Altair Bushing Model with MotionView
This section provides information about using the Altair Bushing Model, also known as AutoBushFD, with MotionView. The Altair Bushing Model is a sophisticated model that you can use to simulate the behavior of bushings in vehicle dynamics, durability and NVH simulations.
Define the Bushing's Properties
The Properties window includes five tabs that you can use to define the properties of your bushing.

2023

What's New
View new features for Altair HyperWorks 2023.
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.
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.
Squeak and Rattle Director
Create and evaluate evaluation lines and optimize interfaces to eliminate squeak and rattle issues.
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.
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.
- MotionView Overview
  MotionView is a general pre-processor for Multibody Dynamics.
- Model Browser
  The Model Browser allows you to view the MotionView model structure while providing display and editing control of entities.
- MotionView Ribbons
  The MotionView ribbons allows you to quickly access tools and standard functions, and is located along the top of MotionView.
- MotionView CAD Interfacing
  MotionView supports the importing of several types of CAD and FE formats.
- Flexible Bodies
  MotionView has many pre-processing and post-processing capabilities with regards to flexible bodies, or flexbodies, for multibody dynamics models.
- Functional Mockup Unit (FMU)
  Add an FMU to the model or export a model as an FMU.
- Vehicle Modeling
  Explore the various vehicle modeling tools.
  - Build and Analyze Models
  - Vehicle Libraries
  - Components Library
    - Accessing the Components Library in MotionView
    - AirSpring
    - Helical Spring
    - Shock Absorber
    - Bushings
      - AutoBush
        The AutoBush is a bushing model that is designed to easily simulate bushings used in ground vehicles. The AutoBush entity reads bushing stiffness (force-displacement) and damping (force-velocity) data from a file written in the TeimOrbit format.
      - AutoBush FD
      - Use the Altair Bushing Model with MotionView
        This section provides information about using the Altair Bushing Model, also known as AutoBushFD, with MotionView. The Altair Bushing Model is a sophisticated model that you can use to simulate the behavior of bushings in vehicle dynamics, durability and NVH simulations.
        
        General Bushing System Files
        The Model Identification Tool (MotionView) is a utility in HyperGraph that you use to fit experimental data to various bushing models. The MotionView generates a General Bushing System file, .gbs file, which defines the bushing properties.
        
        Add an Altair Bushing Model
        You can add an Altair Bushing Model, also known as AutoBushFD, a frequency-dependent bushing, to your MotionView model using the Add Auto Entity tool in MotionView.
        
        Attach a Bushing to the Model
        This section describes how you attach a bushing to a model.
        
        Define the Bushing's Properties
        The Properties window includes five tabs that you can use to define the properties of your bushing.
        
        Define the Property File
        
        Define Preload, Offset and Scale
        
        Define the Friction
        The friction torque resists rotation of the bodies relative to one another. The friction model supports stiction and sliding effects as well as a measured friction torque due to preload in the bushing.
        
        Define the Mount Stiffness
        Use Mount Stiffness when you want to approximate the structural deflection of the bodies that the bushing connects due to the load that the bushing carries. Mount stiffness is modeled as a set of linear springs and dampers in series with the bushing stiffness and damping, thus softening the connection between the bodies. Alternatively, you can use flexible bodies to model the bodies the bushing connects.
        
        Define the Mount Limits
        You can activate Mount Limits to simulate material contact between the bodies that the bushing connects. This contact limits the bushing deflection. When the deflection is sufficient in a given direction to close the gap distance, the mount limit forces or torques become active. The forces and torque are computed using an impact function. An exponent greater than one (1) provides increasing stiffness with penetration. The damping force is smoothed with a cubic step function over the penetration distance.
        
        Add a Pair of Bushings
        In addition to adding a single bushing to your project, you can also add a pair of bushings such as AutoBushFD pair. When you add a pair, MotionView automatically reflects modifications you make on the left bushing of the pair to the right bushing, unless you choose otherwise. MotionView assumes bilateral symmetry about the global X-Z plane.
    - Bump Stop
    - Rebound Stop
    - Rider
    - Tires
  - Leaf Spring Modeling
  - Road Modeling
  - Tire Modeling
  - Soft Soil Modeling
  - Full Vehicle Events and Altair Driver
  - Road Tools
  - 1D Vehicle System Models
  - Update Model Utility
  - Aerodynamics
  - Track Builder
- Tcl/Tk Reference Guide
  Reference material for the scripting interface which is a set of Tcl/Tk commands.
- MDL Reference Guide
  Reference materials for the MotionView MDL Language, Tire Modeling, and the MDL Library.
- MotionSolve Reference Guide
  Reference material detailing command statements, model statements, functions and the Subroutine Interface available in MotionSolve.
- Templex and Math Reference Guide
  Reference material for Templex (a general purpose text and numeric processor) and additional mathematical functions and operators.
- MotionView Python Reference Guide
  Reference materials for the MotionView Python Language.
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

2023

Home
Multibody Modeling
MotionView is a general pre-processor for Multibody Dynamics.
Vehicle Modeling
Explore the various vehicle modeling tools.
Components Library
Bushings
Use the Altair Bushing Model with MotionView
This section provides information about using the Altair Bushing Model, also known as AutoBushFD, with MotionView. The Altair Bushing Model is a sophisticated model that you can use to simulate the behavior of bushings in vehicle dynamics, durability and NVH simulations.
Define the Bushing's Properties
The Properties window includes five tabs that you can use to define the properties of your bushing.

Define the Bushing's Properties

The Properties window includes five tabs that you can use to define the properties of your bushing.

Define the Property File
Define Preload, Offset and Scale
Define the Friction
The friction torque resists rotation of the bodies relative to one another. The friction model supports stiction and sliding effects as well as a measured friction torque due to preload in the bushing.
Define the Mount Stiffness
Use Mount Stiffness when you want to approximate the structural deflection of the bodies that the bushing connects due to the load that the bushing carries. Mount stiffness is modeled as a set of linear springs and dampers in series with the bushing stiffness and damping, thus softening the connection between the bodies. Alternatively, you can use flexible bodies to model the bodies the bushing connects.
Define the Mount Limits
You can activate Mount Limits to simulate material contact between the bodies that the bushing connects. This contact limits the bushing deflection. When the deflection is sufficient in a given direction to close the gap distance, the mount limit forces or torques become active. The forces and torque are computed using an impact function. An exponent greater than one (1) provides increasing stiffness with penetration. The damping force is smoothed with a cubic step function over the penetration distance.

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