Creating Periodicity Conditions

You can create a periodicity condition and simulate periodicity conditions by linking together the degrees of freedom of two faces that undergo transformation. Periodicity conditions enable you to perform an analysis on the solid section of a periodic part. This solid section should represent a cyclic period of the entire part.

Applying periodicity conditions is cost saving: you compute only a section of the part and get a result that is representative of the whole part.

Before you begin: To use periodicity conditions, you need to make sure the geometry as well as the created restraints and loads are periodic. The geometry also needs to be regular at the place the section is cut: discontinuity is not allowed.

  1. In the Virtual Parts toolbar, click Periodicity Condition .

    The Periodicity Condition dialog box appears.

  2. Optional: In the Name box of the Property tab, modify the name of the periodicity condition.

  3. In the Supports box, select two geometries with either a regular symmetry or cyclic symmetry.

  4. Click OK.

    The periodicity condition and the periodicity mesh are created and appear in the specification tree under the Virtual Parts set and under the Nodes and Elements set.