Adams Basic Package > Adams View > Adams View > Dialog box - F1 help > J - O > Modify Run-Time Clearance

Modify Run-Time Clearance

Simulation tab → Simulate container → Run-Time Clearance → Modify
Run-Time Clearances can be used to monitor the clearance distance between two selected geometries/flexible bodies. This clearance distance is based upon tesselation of geometry or analytical representation of known geometry. For flexible parts, clearance is based upon the external face geometry in the MNF.
The clearance tool only considers distance between polygons (whether from a mesh for flexible parts or from tesselation of geometry) so additional single point nodes are left out of the clearance analysis.
After a simulation is complete, the minimum clearance location between the two geometries/flexible bodies may be animated. This is represented as a line between the objects involved. You can also plot the clearance result sets and export the clearance data in the results file.
Multiple clearance analyses may be conducted between the same two bodies by selecting different regions of a flexible part for each analysis.
 
For the option:
Do the following:
Clearance Name
Enter the name of an existing Clearance object.
Clearance Type
Set to the type according to the participating bodies in the clearance analysis. Clearances can be created between geometries, flexible parts or between flexible parts and geometries.The text boxes change depending on the clearance type you selected.
Threshold
Optional field allowing you to specify a distance for when a gross or precise clearance calculation will be computed by Solver and animated by View. Set to 0.0 by default. When set, Solver will compute the clearance between the bounding box of each geometry if the distance between bounding boxes is greater than the threshold. This is what is meant by gross (approximate) clearance. Solver will calculate the precise clearance between actual geometries when the distance between bounding boxes is equal to or below the threshold, or when the threshold is set to zero (default). In addition, View will only animate the precise clearance location, that is, when the tolerance is set to zero, or when the clearance is less than or equal to the threshold and threshold is not equal to zero. Setting the threshold can speed up simulations and animations when one is not interested in clearance above a given threshold.
If you selected Geometry to Geometry, Adams View displays the following two options:
I Geometry
Enter one or more geometry solids. The solids must all belong to the same part.
J Geometry
Enter one or more geometry solids. The solids must all belong to the same part.
If you selected Geometry to Flexible Body, Adams View displays the following four options:
I Geometry
Enter one or more geometry solids. The solids must all belong to the same part.
J Flexible Body
Select a Flexible Body.
J Region
This Field that appears only for Flexible bodies and allows selection of specific nodes in the MNF for clearance analysis. If this field is not entered, then all the nodes in the MNF are considered for the clearance analysis. J Region Nodes can be entered either by typing the node numbers or by right-clicking on the field and selecting the "Pick FlexBody Node" option.Multiple flexible body nodes can be selected by clicking on the nodes with the left mouse button and then clicking on the right mouse button to finish.
Exclude J Regions
Toggle Box that either excludes or includes all the nodes in the J Region selected in the clearance Computation. If this field is not entered, all the J Region nodes selected will be included in the Clearance computation.
If you selected Flexible Body to Geometry Adams View displays the following four options:
I Flex Body
Select a Flexible Body
I Region
This Field that appears only for Flexible bodies and allows selection of specific nodes in the MNF for clearance analysis. If this field is not entered, then all the nodes in the MNF are considered for the clearance analysis. I Region Nodes can be entered either by typing the node numbers or by right-clicking on the field and selecting the "Pick FlexBody Node" option. Multiple flexible body nodes can be selected by clicking on the nodes with the left mouse button and then clicking on the right mouse button to finish.
J Geometry
Enter one or more geometry solids. The solids must all belong to the same part.
Exclude I Regions
Toggle Box that either excludes or includes all the nodes in the I Region selected in the clearance Computation. If this field is not entered, all the I Region nodes selected will be included in the Clearance computation.
If you selected Flexible Body to Geometry Adams View displays the following five options:
I Flex Body
Select a Flexible Body
I Region
This Field that appears only for Flexible bodies and allows selection of specific nodes in the MNF for clearance analysis. If this field is not entered, then all the nodes in the MNF are considered for the clearance analysis. I Region Nodes can be entered either by typing the node numbers or by right-clicking on the field and selecting the "Pick FlexBody Node" option. Multiple flexible body nodes can be selected by clicking on the nodes with the left mouse button and then clicking on the right mouse button to finish.
Note: By default nodes can be selected from the last created/selected flexible body. In case a new flexible body has been created or selected after the I Flex Body or the J Flex Body fields have been entered, the original flexible body needs to be made the default flexible body by the command "defaults model flexible_body_name= name"
J Flex Body
Select a Flexible Body.
J Region
This Field that appears only for Flexible bodies and allows selection of specific nodes in the MNF for clearance analysis. If this field is not entered, then all the nodes in the MNF are considered for the clearance analysis. J Region Nodes can be entered either by typing the node numbers or by right-clicking on the field and selecting the "Pick FlexBody Node" option.Multiple flexible body nodes can be selected by clicking on the nodes with the left mouse button and then clicking on the right mouse button to finish.
Note: By default nodes can be selected from the last created/selected flexible body. In case a new flexible body has been created or selected after the I Flex Body or the J Flex Body fields have been entered, the original flexible body needs to be made the default flexible body by the command "defaults model flexible_body_name= name"
Exclude I Regions
Toggle Box that either excludes or includes all the nodes in the I Region selected in the clearance Computation. If this field is not entered, all the I Region nodes selected will be included in the Clearance computation.
Exclude J Regions
Toggle Box that either excludes or includes all the nodes in the J Region selected in the clearance Computation. If this field is not entered, all the J Region nodes selected will be included in the Clearance computation.