Altair Radioss Online Help

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Reference Guide
This manual provides a detailed list of all the input keywords and options available in Radioss.
Optimization Keywords
Optimization Keyword This manual contains the description of the Keywords for the Radioss Optimization. This manual is compatible with the version 2018 of Radioss.
Design Variables
Optimization Keyword In this group, keywords are used to define the design variable in optimization.

What's New
Overview
Tutorials
User Guide
Reference Guide
Example Guide
Frequently Asked Questions
Theory Manual
User Subroutines
HyperWorks Solver Run Manager
Starter Input
Engine Input

Altair Radioss Online Help

What's New
View new features for Radioss 2019.
Overview
Radioss^® is a leading explicit finite element solver for crash and impact simulation.
Tutorials
Discover Radioss functionality with interactive tutorials.
User Guide
This manual provides details on the features, functionality, and simulation methods available in Altair Radioss.
Reference Guide
This manual provides a detailed list of all the input keywords and options available in Radioss.
- File Extensions and Formats
  Radioss format V2018 is based on 10x extension.
- Single File Input
  This format allows running either Starter or Engine with the same file.
- New Keywords in 2019
  New and modified features in Radioss.
- Starter Input
  This manual provides a list of all the model definition keywords and options available in Radioss.
- Engine Input
  This manual provides a list of all the solution definition keywords and options available in Radioss.
- Optimization Keywords
  Optimization Keyword This manual contains the description of the Keywords for the Radioss Optimization. This manual is compatible with the version 2018 of Radioss.
  - Bulk Data
    Optimization Keyword This group of keywords are used to insert Bulk format data into <name>.radopt file.
  - Design Constraints
    Optimization Keyword In this group, keywords are used to define the design constraints.
  - Design Response
    Optimization Keyword In this group, keywords are used to define the design response in optimization.
  - Design Variables
    Optimization Keyword In this group, keywords are used to define the design variable in optimization.
    - /DESVAR
      Optimization Keyword Defines optimization design variables.
    - /DSHAPE
      Optimization Keyword Defines parameters for the generation of free-shape design variables.
    - /DSIZE
      Optimization Keyword Defines parameters for the generation of free-size design variables.
    - /DTPG
      Optimization Keyword Defines parameters for the generation of topography design variables.
    - /DTPL
      Optimization Keyword Defines parameters for the generation of topology design variables.
    - /DVPREL1
      Optimization Keyword Linearly relates a design variable to an analysis model property.
    - /DVPREL2
      Optimization Keyword Relates a design variable to an analysis model property using a relationship defined by a /DEQATN card.
  - /DEQATN
    Optimization Keyword Specifies one or more equations for use in optimization.
  - /DESOBJ
    Optimization Keyword This keyword can be used to select a response as the objective function of an optimization run by selecting a response as the objective function. The selected response can either be minimized or maximized based on the inputs specified on this keyword.
  - /DTABLE
    Optimization Keyword List of constants to be used in functions defined by /DEQATN.
  - /DVGRID
    Optimization Keyword Defines the relationship between design variable and grid point location.
  - /ESLPART
    Optimization Keyword Defines parts in the model which will be included in ESLM optimization.
- Multi-Domain
  This manual contains the description of the Keywords for the Radioss Multi-Domain.
- Other Files
- Definitions
Example Guide
This manual presents examples solved using Radioss with regard to common problem types.
Frequently Asked Questions
This section provides quick responses to typical and frequently asked questions regarding Radioss.
Theory Manual
This manual provides detailed information about the theory used in the Altair Radioss Solver.
User Subroutines
The Radioss User Subroutines manual is available in PDF format.
HyperWorks Solver Run Manager
The HyperWorks Solver Run Manager is a unified utility that allows the user to start different HyperWorks Solvers.
Starter Input
This manual provides a list of all the model definition keywords and options available in Radioss.
Engine Input
This manual provides a list of all the solution definition keywords and options available in Radioss.

View All Altair HyperWorks Help

Altair Radioss Online Help

Home
Reference Guide
This manual provides a detailed list of all the input keywords and options available in Radioss.
Optimization Keywords
Optimization Keyword This manual contains the description of the Keywords for the Radioss Optimization. This manual is compatible with the version 2018 of Radioss.
Design Variables
Optimization Keyword In this group, keywords are used to define the design variable in optimization.

What's New
Overview
Tutorials
User Guide
Reference Guide
Example Guide
Frequently Asked Questions
Theory Manual
User Subroutines
HyperWorks Solver Run Manager
Starter Input
Engine Input

Design Variables

Optimization Keyword In this group, keywords are used to define the design variable in optimization.

/DESVAR
Optimization Keyword Defines optimization design variables.
/DSHAPE
Optimization Keyword Defines parameters for the generation of free-shape design variables.
/DSIZE
Optimization Keyword Defines parameters for the generation of free-size design variables.
/DTPG
Optimization Keyword Defines parameters for the generation of topography design variables.
/DTPL
Optimization Keyword Defines parameters for the generation of topology design variables.
/DVPREL1
Optimization Keyword Linearly relates a design variable to an analysis model property.
/DVPREL2
Optimization Keyword Relates a design variable to an analysis model property using a relationship defined by a /DEQATN card.

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