When you enter the Frame Analysis environment, the last active simulation opens. If there is no simulation yet, only three commands are available: Create Simulation, Frame Analysis Settings, and Finish Frame Analysis. Click Create Simulation to define your simulation criteria.
An assembly document can contain one or more simulations.
In setting up a simulation, consider specific questions, such as:
As you refine a design, analyze the results of the simulation to determine the relationships between the criteria. Then proceed to the next step or iteration of the design.
To activate an inactive simulation, double-click the inactive simulation node in the browser. The action:
The active simulation has a white background in the browser. Inactive simulations have a gray background. You can immediately identify which simulation you are working with and editing.
Browser update notices
| ||When switching between simulations, the Results can become stale. You see a browser node decoration, lightning bolt, indicating the need to run the simulation. To update the Results, click Simulate in the Solve panel. Or, click the Simulation node in the browser, right-click, and select Simulate.|
To produce variations of a simulation, use the Copy Simulation command on the context menu of a simulation.
You can copy a simulation that contains beams and nodes that are not updated from a source assembly. In such case, the Update is started automatically and all beams and nodes are updated to reflect an assembly at a specific state. The beams and nodes within the original simulation are not updated however.
To copy a simulation:
Limitations of Copy Simulation
Simulation properties are unique for each simulation. The properties are populated with values from the Frame Analysis Settings and representation information from the assembly. Then, based on the simulation needs, you specify the properties. The dialog box contains general controls and tabs for specific controls.
Simulation Type properties provide you the option to select either Static or Modal analysis and properties associated to those types. If the simulation requires something other than the default, modify the settings as needed.
Presented as the Create New Simulation dialog box when Create Simulation command is used.
Presented as the Edit Simulation Properties dialog box when you right-click the Simulation browser node and click Edit Simulation.
The Simulation Type tab is displayed by default.
|Assign a name that defaults to Simulation, followed by a colon and a numeric indicator indexed from 1 to ‘n’. Each new simulation is named with the next higher value. The name is used for all user-visible references to the simulation.|
Evaluate the model without motion to determine stresses and displacement.
Determine the natural frequencies of vibration for the model.
|Compute Preloaded Modes|
Select to compute stress on a model and then compute modes for the prestressed condition.
This option is on, by default.
|Maximum Number of Modes|
Enter the number of calculated modes.
Specify the maximum value of tolerance that is to be achieved during iterative analysis of a structure. The default value is 0.0001.
You can enter the value in a different linear unit than the default document value.
|Number of Iterations|
Enter the maximum number of iterations. The default value is 8.
If the entered number is exceeded and the required tolerance is not achieved, calculations of the structure stop.
|OK||Accepts the setting modifications and applies them to the selected simulation.|
|Cancel||Cancels the current dialog box session. Modifications made during the session that have not been applied are discarded.|
|Apply||Sets or revises the simulation settings based on current dialog box values.|
On the Model State tab, specify the assembly representations you want to use in relation to the simulation. Additionally, if the component is part of an iAssembly factory you can specify which member is presented in the simulation.
Presented as the Create New Simulation dialog box when the Create Simulation command is used.
Presented as the Edit Simulation Properties dialog box when you right-click the Simulation browser node and click Edit Simulation Properties.
|A user assigned name that defaults to Simulation, followed by a colon and a numeric indicator indexed from 1 to ‘n’. Each new simulation is named with the next higher value. The name is used for all user-visible references to the simulation.|
Each assembly simulation maintains an association to each representation type. As you activate different simulations, the corresponding representation is activated for that simulation. You can change the representation association at any time. If you do so after a simulation has been run, the results can be out of sync. If so, rerun the simulation.
Specifies the design view representation to use with the simulation.
Specifies the positional representation to use with the simulation. Use positional representations to place components into a specific position or relationship with other components.
|Level of Detail|
Specifies the level of detail representation to use with the simulation. This selection can help simplify the model thereby reducing simulation and meshing time.
Specifies the iAssembly member to be associated with the simulation. If the component is a factory member, the member selection is disabled.