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2023.1
What's New
View new features for Radioss 2023.1 .
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
Current Radioss format uses the 12x extension format.
Single File Input
This format allows running either Starter or Engine with the same file.
New Keywords in 2023
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 .
LS-DYNA Input
This manual provides a list of LS-DYNA input files 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 .
Multi-Domain
This manual contains the description of the keywords for the Radioss Multi-Domain.
Other Files
Definition
Example Guide
This manual presents examples solved using Radioss with regard to common problem types.
Verification Problems
This manual presents solved verification models.
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
This manual describes the interface between Altair Radioss and user subroutines.
*INITIAL_VELOCITY_RIGID_BODY
LS-DYNA Input Interface Keyword Define initial velocity of a rigid body.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
*INITIAL_VELOCITY_RIGID_BODY
Part_ID
VX
VY
VZ
VXR
VYR
VZR
Skew_ID
Definition
Field
Contents
SI Unit Example
Part_ID
Part ID of the rigid body or nodal rigid
body.(Integer)
VX , VY ,
VZ
Translational nodal velocity components.(Real)
[ m s ]
VXR , VYR ,
VZR
Rotational nodal velocity components.(Real)
[ rad s ]
Skew_ID
Coordinate system identifier.(Integer)
This keyword maps to /INIVEL .
This setting can be overwritten by the other
*INITIAL_VELOCITY defined in the model.