When you create a new msmac3D simulation the default is to use a simple model of the structure since most simulations do not include a rollover.
If you have a reconstruction which includes a rollover then you should do the following:
- click on the vehicle to bring up the menu to the side
- nodes menu.jpg (43.05 KiB) Viewed 296 times
- click on the 'rubber duckie' which will bring up the options related to structural nodes
- structural nodes.jpg (38.43 KiB) Viewed 296 times
- there are two options, nodes based on vehicle type (crude but provides some structure) and Structural Nodes from 3D Model (at top)
- Selecting the nodes based on 3D Model brings up this additional menu
- structural nodes2.jpg (33.85 KiB) Viewed 296 times
- When you select nodes from 3D Model you pick a distance between nodes (in ft) 0.50 is a good choice (1.0 is fine for starters)
- Also note you need to adjust the structural stiffness per node the mode nodes you have (input card 83, field 6 & 7)
- Next click on the rubber duck in the dialog to update the nodes per any changes (a message will come up)
- node warning.jpg (18.02 KiB) Viewed 296 times
- The dialog will reload with the number of nodes listed
You can also select 'Add Wheel Guard' which puits extra nodes around the wheel to avoid near parallel interaction of the wheels with the terrain)- node dialog w numbers.jpg (34.3 KiB) Viewed 296 times
- Click the upper right corder to return to the main 3D Model dialog
- You can now also display the nodes with the 3D model and the nodes alone
- node v type node locations.jpg (122.53 KiB) Viewed 294 times
- NOTE: the mode nodes you have the longer the simulation will take
- If you do NOT need nodes simply set the friction multiplier for the nodes (card 81 fields 7,8) to 0.0 and no nodes will be used (and MUCH faster simulations!)
- Inputs for nodes/etc are also discussed on