A Modal analysis involving cyclic symmetry includes a Cyclic Controls category that enables you to solve the harmonic index for all values, or for a range of values. This category is available if you have defined a Cyclic Region in the analysis.
Note: Currently for Modal Analysis with Cyclic Symmetry:
The Unsymmetric Solver Type (UNSYM) is not supported.
Damping is not supported (Fully Damped, DAMPED, or Reduced Damped, QRDAMP).
Expansion is only available for harmonic indices > 0 with the Samcef or ABAQUS solver.
For more information about the associated Mechanical APDL command, see the MODOPT section of the Mechanical APDL Command Reference.