This example problem demonstrates a centrifugal impeller blade analysis using cyclic modeling methods and linear-perturbation solution approaches. The problem includes a modal analysis, a full-harmonic analysis, a prestressed modal analysis using linear perturbation, a prestressed full-harmonic analysis using linear perturbation, and a prestressed mode-superposition harmonic analysis using linear perturbation.

The results of the cyclic symmetry analysis are verified against reference results obtained from an analysis of the full (360-degree) model.