Computing Interferences in Non-Persistent Mode

You can compute an interference without creating a simulation in an assembly using non-persistent interference simulation.

Important: The result of the non-persistent interference simulation is not saved.


Before you begin: Open the required product.
See Also
In the Knowledge Base
About swept volume representation in interference simulation
  1. Select the required product in the tree.
  2. From the Assembly section of the action bar, click Create non persistent interference Simulation.
    The Light Interference Simulation Definition dialog box appears.
  3. In the Specifications tab, select the required options.
    • Select the required standard specifications.
      • Clash and Contact: to compute clashes and contacts.
      • Clearance: to compute the clearances lower than the minimum clearance value defined in the Clearance box.
    • Select the required engineering connection specifications.
      • Check No Clash: Identifies only clashes
      • Check Contact: Identifies clashes and clearances
      • Check Clearance: Identifies clashes, contacts and clearances with distance less than the specified minimum value of the clearance
      • No Check: Avoids computation for the interferences with specifications set as No Check in the Engineering Connection Definition dialog box.
    • Select the required computation quantifiers.
      • Minimum Distance: to compute and store the minimal clearance distance. The check box is available when you select:
        • The Clearance check box under Standard Specification
        • The Activate and Check Clearance check boxes under Engineering connection specification
        • The Activate check box under Knowledge rules specifications
      • Penetration Vector: to compute and store the penetration vector value when a clash is identified. You can search for an interference simulation using advanced search, specifying the penetration value as a search attribute.
  4. Optional: In the Context tab, select the following check boxes under Check Intermediate Representation:

    • Append Intermediate Representation: to include intermediate representations to the interference computation. When you select this check box, the computation includes the interferences between the following elements of the context:

      • Parts and representations under the same product
      • Representations from the different products under the same simulation context

      Note: Interferences between the representations under the same product are not computed.

      By default, this check box is cleared.

    • Compute Between Intermediate Representation: to identify interferences that exist between representations under the same product. This check box is available for selection when the Append Intermediate Representation check box is selected.

  5. Define the context to compute the interference.

    By default, Between all components is selected which computes the interferences between all the elements under the selected root product.

  6. To define the groups inside the simulation context:
    1. From the list, select either of the following:

      • Inside groups: to compute interferences between the elements of a group. You can select one or more groups. However, interferences are computed only between the objects of the same group.
      • Groups against groups: to compute interferences between the elements of different groups. Interferences are computed between all parts of one group and all parts of other groups.
      • Groups against context: to compute interferences between the selected elements in a group, and the remaining elements in the context. Interferences are computed between defined groups against the context.

    2. Click Add new group to create a group.

      You can create several groups within the simulation context and compute the interferences between them.

      Note: You can click Add more groups and select products or parts in the 3D area or the tree to create multiple groups at a time. Each product or part selected is added as a separate group.

    3. Add the required elements in the group. To do so:

      • Click Add the selected product in the group to add objects to the selected group. Select the product or the parts in the 3D area or the tree to add them to a new group.
      • Click Remove the selected product from the group to remove selected objects from the selected group. When nothing is selected, all the objects are removed from the group.
      • Click Delete this group to delete the selected group.
      • Click Add the selected filter to this group to add a previously created filter to define the group context.
      For more information about creating filters, see Social and Collaborative Apps: Product Development- Model Based: Product Finder Guide User's Guide: Using Persistent Filters: Creating a Persistent Filter.

      Notes:
      • You can apply filters in all modes except Between all components mode.
      • You can add one filter for a selected group.
      • You can either add a filter or manually select a product for the selected group.
      • If you add a filter again after adding a filter to the group, the filter from the group is replaced with the new filter.
      • For filters, if advanced filters defined in groups point to elements that are not pointed by filter or advanced filter context, interferences cannot be computed.
      • If a part is added to the product structure, which matches the filter criteria, this new part will not be taken into account until the current interference simulation is closed and re-opened.
      • If the context product is changed (only accessible when creation is started from no tab), all groups are deleted.

    By default, Between all components is selected which computes the interferences between all the elements under the selected root product.

  7. Click OK.
  8. Undock the multi-list to see the summary of number of clashes, contacts, and clearances. For more information, see Interference Finder; Interference Simulation Multi-List.

    Note: The interference simulation multi-list generated using non persistent interference simulation consists of columns for Specification, System status, Instance 1, Instance 2, Quantifier, and Tolerance.

  9. Click Close.
    The multi-list closes and the results are not saved in the tree.