The cyclic matching process involves copying the mesh of the first selected faces or edges in the Match Control (the High Geometry Selection scoped in the Details View of the Match Control) to the second selected faces or edges in the control (the scoped Low Geometry Selection).
You can scope a Cyclic Match Control to either a geometry selection or a named selection.
If you want to automatically generate solver constraints for periodic mesh in addition to matching the mesh, you should use the Symmetry feature in the Mechanical application.
Insert a Match Control by right-clicking the Mesh object in the Tree Outline and selecting > .
In the Details view, define the scope of the selection:
To apply a match control to... Do this... A geometry selection Click Scoping Method and select .
Select one or more faces or edges, and then in the High Geometry Selection field, click .
Select one or more faces or edges, and then in the Low Geometry Selection field, click .
A named selection Click Scoping Method and select .
In the High Boundary and Low Boundary fields, select the appropriate named selections.
In the Details View, select as the Transformation type and a coordinate system with its z-axis aligned to the axis of rotation for the geometry.
Generate the mesh by right-clicking the Mesh object and selecting from the context menu.
Note: When a match is successful, the number of elements in the matched faces/edges will be the same, and there will be a direct one-to-one mapping between their nodes. A small blue status icon (
) appears to the
left of the Match Control object icon in the Tree Outline if the
Match Control fails on the face or edge pair.
When a cyclic Match Control is used together with Sizing controls, the controls on the high side have the higher precedence. Whatever controls are on the high faces or edges will be honored on the low faces or edges in the Match Control. Sizing controls applied to the low faces or edges will be honored only if the high side does not have the same controls, and only if the sizing is applied directly on the low topology (that is, applying the sizing on connected topologies will have no effect).
Note: The Meshing application inserts match controls for periodic regions automatically. See the Match Meshing and Symmetry section for more information.