Dummy Panel
Use the Dummy Positioning / Joint dof panel to rotate the dummy assemblies or specify the position of the H-Point of a dummy assembly. The dummy database must be organized as a tree structure.
Location: Analysis page > Safety module
Incremental Subpanel
Use the Incremental subpanel to rotate an assembly about the coordinate system
specified in the tree structure. In this panel, you have an option to rotate about
the child or the parent system. The min stop and max stop angles for the x, y, z,
axis associated with the joint are retrieved from the dummy database. When the
minimum and maximum angles are reached, the assembly is not allowed to rotate any
further.
| Option | Action |
|---|---|
| entity selector | Select components or multibodies. |
| rotate: child / parents | Select whether to rotate around the child or parent system when rotating the assembly. |
| increment | Specify the amount by which to increment the angle between stops. |
| x / y / z rot | To rotate the dummy to the min stop or max stop of the x-axis, y-axis, or z-axis, click the corresponding symbols, << or >>. |
| min stop | The min stop angle for the x, y, z, axis associated with the joint is retrieved from the dummy database. When the minimum angle is reached, the assembly is not allowed to rotate any further. |
| current | The current position. |
| max stop | The max stop angle for the x, y, z, axis associated with the joint is retrieved from the dummy database. When the maximum angle is reached, the assembly is not allowed to rotate any further. |
H-Point Subpanel
Use the H-Point subpanel to position the dummy to the H-Point or rotate the
entire dummy about the H-Point. For positioning, you can specify either the
coordinates or a node for the new H-Point. For rotating, specify the axis of
rotation and the angle. In either case, picking any component in the dummy is
sufficient.
| Option | Action |
|---|---|
| entity selector | Select components or multibodies. |
| position: coordinate / point - node | Specify the coordinate values or select the node at which you want the H-point located. |
| rotate selector | Specify the plane or axis around which to rotate |
| increment | Specify the amount to rotate. |
Command Buttons
Note: Do not use the Rotate panel in the Tools panel to
rotate the dummy. Doing so corrupts the tree structure and produces incorrect
results when you reposition the dummy.
| Button | Action |
|---|---|
| position | Position the dummy. |
| reject | Reject the current selection. |
| rotate + / rotate - | Rotate the component in the positive or negative direction. |
| return | Exit the panel. |
Comments
- FTSS/Arup FE Dummies for Dyna3D
- The Dyna3D keyword import translator detects the use of an FTSS/Arup dummy and builds the required tree structure automatically.
- PAM-CRASH 2G Dummies
- Altair provides an external translator that converts a GENERIS tree file into Engineering Solutions commands. After importing the dummy, you need to run this command file once to establish the required tree structure in Engineering Solutions.
- Other Dummy Models/Mechanical Systems
- The Dummy Positioning panel works for any FE mechanical system (comprised of joints and local coordinate systems) as long as the appropriate tree structure exists. If the tree structure does not already exist in the system of interest, you can use the Systems panel to create the necessary references.