HyperWorks

2021.1

Home
Multibody Modeling
MotionView is a general pre-processor for Multibody Dynamics.
Vehicle Modeling
Explore the various vehicle modeling tools.
Vehicle Libraries
Car/Small Truck Library
MDL Library User's Guide
Vehicle Modeling Library User's Guide
The vehicle library models most four-wheeled vehicles in production today. Models can be modified interactively in MotionView to support topologies that are not supported in the vehicle library. The vehicle library is open-source, ASCII-based, and can be modified by you. The methods in the vehicle library can also be used and adapted to model non-automotive land vehicles, such as tractors and trucks.
Front Suspension Systems

What's New
Get Started
Video Tutorials
Manage Files and Data
Sessions and Report Templates
Interface with External Products
Entities and Solver Interfaces
Model Build and Assembly
Geometry
Meshing
Elements
Morph
Connectors
Composites
Crash and Safety
Airbag Solutions
Design Space
Design Explorer
Aerospace
Aeroelasticity
Certification
Marine
Squeak and Rattle Director
Geomechanics Director
Panels
Results Data
Plot Data
Multibody Modeling
Media Files
Text Files
Tabulate Results
Publishing and Reporting

Index

2021.1

HyperWorks

What's New
View new features for HyperWorks 2021.1.
Get Started
Learn the basics and discover the workspace.
Video Tutorials
Discover HyperWorks functionality with interactive tutorials.
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 HyperWorks.
Entities and Solver Interfaces
A solver interface is made up of a template and a FE-input reader.
Model Build and Assembly
Create, organize and manage parts and subsystems.
Geometry
Create, edit, and cleanup geometry.
Meshing
Different types of mesh you can create in HyperWorks.
Elements
Create and edit 0D/1D entities and edit 2D elements.
Morph
Rapidly change the shape of the FE mesh without severely sacrificing the mesh quality.
Connectors
Create connections between parts of your model.
Composites
HyperMesh composites modelings.
Crash and Safety
Tools used for crash and safety analysis.
Airbag Solutions
Airbag solutions offer airbag folder utilities and exports a resulting airbag in a Radioss deck.
Design Space
Workflow to support topology optimization model build and setup.
Design Explorer
Multi-disciplinary design exploration and optimization tools.
Aerospace
Essential utility tools developed using HyperWorks-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.
Marine
Streamline the creation of properties and 1D stiffener mesh using the info read from Marine CAD tools.
Squeak and Rattle Director
Create evaluation lines, evaluate them, and optimize the interfaces to eliminate squeak and rattle issues.
Geomechanics Director
A Packaged Solution Offering (PSO) that provides a flexible and customizable platform for building and analyzing geomechanical models.
Panels
Panels contains pre-processing and post-processing tools.
Results Data
HyperView is a complete environment to visualize, query, and process results data.
Plot Data
HyperGraph is a data analysis and plotting tool with interfaces to many CAE file formats.
Multibody Modeling
MotionView is a general pre-processor for Multibody Dynamics.
- MotionView Overview
  MotionView is a general pre-processor for Multi-body 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 multi-body dynamics models.
- Preferences Menu
  From the Preferences menu, you can access the Options dialog.
- Vehicle Modeling
  Explore the various vehicle modeling tools.
  - Build and Analyze Models
  - Vehicle Libraries
    - Car/Small Truck Library
      - MDL Library User's Guide
        
        Vehicle Modeling Library User's Guide
        The vehicle library models most four-wheeled vehicles in production today. Models can be modified interactively in MotionView to support topologies that are not supported in the vehicle library. The vehicle library is open-source, ASCII-based, and can be modified by you. The methods in the vehicle library can also be used and adapted to model non-automotive land vehicles, such as tractors and trucks.
        
        The Suspension Design Process
        A widely used process in the automotive industry is to split the suspension design and development into three distinct stages. The stages are typically performed by different teams working in different locations and at different times during the vehicle program. Ideally, the teams will share model data, modeling methods, and results widely. Since the teams are working on the same vehicle, the engineering lessons learned by one group will need to be shared with the other two teams.
        
        Design of Experiments and Optimization
        All of the MotionView models can be used in either a Design of Experiments (DOE) or Optimization study using the HyperStudy client in HyperWorks.
        
        Front Suspension Systems
        
        Front MacPherson Strut (1pc LCA)
        In a front MacPherson strut (1pc LCA) suspension the knuckle and wheel are located by a control arm and strut. The coil spring is part of the strut and acts between the strut tube and the vehicle body. The spring’s axis typically is not parallel to the strut, but is offset to minimize the bending moment in the strut.
        
        Front MacPherson Strut (2pc LCA)
        In a front MacPherson strut (2pc LCA) suspension, the knuckle and wheel are located by a control arm and strut. The coil spring is part of the strut and acts between the strut tube and the vehicle body. The spring’s axis typically is not parallel to the strut, but is offset to minimize the bending moment in the strut.
        
        Front Multi-link
        The multi-link suspension derives its name from the fact that it is made up of three or more links. The MotionView multi-link suspension contains four links, and it is generally used on cars and off-road vehicles. This suspension offers flexibility to the designer, since each link’s location can be determined independently.
        
        Front SLA (1pc LCA)
        The Short-Long Arm (SLA) suspension is also known as a Double Wishbone suspension. The SLA name is derived from the length of the control arms. The lower arm is typically long to provide a good spring lever ratio. The upper arm is typically short to provide the proper camber curve. This suspension is widely used on cars, light trucks, and on independent suspension heavy trucks.
        
        Front SLA (2pc LCA)
        A Short-Long Arm (SLA) suspension configuration is also known as a Double Wishbone suspension. The SLA name is derived from the length of the control arms. The lower arm is typically long to provide a good spring lever ratio. The upper arm is typically short to provide the proper camber curve. This suspension is widely used on cars, light trucks, and on independent suspension heavy trucks. The two-piece lower control arm is the only difference between the two front SLA suspensions.
        
        Rear Suspension Systems
        The rear suspension model is built using the same process as the front suspension. Eleven different rear suspensions are available using the Assembly Wizard.
        
        Suspension Components
        
        Events
        Events create motions and forces in the model which make the system move. Most events add additional parts to the model to perform the simulation.
        
        Static Ride Analysis
        The Static Ride analysis is a simulation of both wheels moving up and down, in phase, with the steering wheel held fixed. The chassis is fixed-to-ground. The displacement of the wheel center is prescribed by the user. The suspension moves via a simple control system and a “suspension test rig”. The wheel is constrained at the tire patch location to the suspension test rig using an in-plane joint. Standard suspension requests (caster, camber, toe, etc.) are included as part of the ride analysis and are described here. The front and rear suspension ride analyses are similar.
        
        Task Wizard Dialog
        The Task Wizard dialog allows you to select the analysis tasks to be run.
        
        Assembly Wizard Dialog
        In MotionView, models are assembled from libraries of pre-defined systems using the Assembly Wizard, located on the Model menu. The Assembly Wizard dialog guides you through the assembly process, ensuring that your selections are compatible.
        
        Attachment Wizard Dialog
        The attachments specified during the assembly process (using the Assembly Wizard dialog) can be modified using the Attachment Wizard, located on the Model menu. The Attachment Wizard dialog guides you through the process of modifying the model attachments.
        
        Set Wizard Paths Dialog
        The Set Wizard Path dialog allows you to select directories in which several files are stored.
      - MDL Library Reference Guide
    - Heavy Truck MDL Library
    - Two-Wheeler MDL Library
  - Components Library
  - Leaf Spring Modeling
  - Road Modeling
  - Tire Modeling
  - Full Vehicle Events and Altair Driver
  - Road Tools
  - 1D Vehicle System Models
  - Update Model Utility
- Tcl/Tk Reference Guide
  Reference material for the HyperWorks Desktop 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.
Text Files
TextView math scripts reference vector data from HyperGraph windows to automate data processing and data summary.
Tabulate Results
TableView creates an Excel-like spreadsheet in HyperWorks.
Publishing and Reporting
Create and export Document and Presentation reports with one click and also define your own report structure.

View All Altair Simulation Help

HyperWorks

2021.1

Home
Multibody Modeling
MotionView is a general pre-processor for Multibody Dynamics.
Vehicle Modeling
Explore the various vehicle modeling tools.
Vehicle Libraries
Car/Small Truck Library
MDL Library User's Guide
Vehicle Modeling Library User's Guide
The vehicle library models most four-wheeled vehicles in production today. Models can be modified interactively in MotionView to support topologies that are not supported in the vehicle library. The vehicle library is open-source, ASCII-based, and can be modified by you. The methods in the vehicle library can also be used and adapted to model non-automotive land vehicles, such as tractors and trucks.
Front Suspension Systems

What's New
Get Started
Video Tutorials
Manage Files and Data
Sessions and Report Templates
Interface with External Products
Entities and Solver Interfaces
Model Build and Assembly
Geometry
Meshing
Elements
Morph
Connectors
Composites
Crash and Safety
Airbag Solutions
Design Space
Design Explorer
Aerospace
Aeroelasticity
Certification
Marine
Squeak and Rattle Director
Geomechanics Director
Panels
Results Data
Plot Data
Multibody Modeling
Media Files
Text Files
Tabulate Results
Publishing and Reporting

Index

Front Suspension Systems

Front MacPherson Strut (1pc LCA)
In a front MacPherson strut (1pc LCA) suspension the knuckle and wheel are located by a control arm and strut. The coil spring is part of the strut and acts between the strut tube and the vehicle body. The spring’s axis typically is not parallel to the strut, but is offset to minimize the bending moment in the strut.
Front MacPherson Strut (2pc LCA)
In a front MacPherson strut (2pc LCA) suspension, the knuckle and wheel are located by a control arm and strut. The coil spring is part of the strut and acts between the strut tube and the vehicle body. The spring’s axis typically is not parallel to the strut, but is offset to minimize the bending moment in the strut.
Front Multi-link
The multi-link suspension derives its name from the fact that it is made up of three or more links. The MotionView multi-link suspension contains four links, and it is generally used on cars and off-road vehicles. This suspension offers flexibility to the designer, since each link’s location can be determined independently.
Front SLA (1pc LCA)
The Short-Long Arm (SLA) suspension is also known as a Double Wishbone suspension. The SLA name is derived from the length of the control arms. The lower arm is typically long to provide a good spring lever ratio. The upper arm is typically short to provide the proper camber curve. This suspension is widely used on cars, light trucks, and on independent suspension heavy trucks.
Front SLA (2pc LCA)
A Short-Long Arm (SLA) suspension configuration is also known as a Double Wishbone suspension. The SLA name is derived from the length of the control arms. The lower arm is typically long to provide a good spring lever ratio. The upper arm is typically short to provide the proper camber curve. This suspension is widely used on cars, light trucks, and on independent suspension heavy trucks. The two-piece lower control arm is the only difference between the two front SLA suspensions.

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