An aerodynamic Reduced-Order Model (ROM) is introduced to describe the aeroelastic behavior of a blade cascade of a tur-bomachine. This is obtained coupling an aerodynamic model with a semi-rigid 2D model for the description of the structure dynamics. The advantages of using an aerodynamic reduced-order model concern the high computational efficiency compared to the direct use of a CFD code, and the applicability of control laws to reduce, for instance, blades vibrations. ROMs are identified from both an analytical aerodynamic model and a numerical CFD solver. The aeroelastic stability of a blade cascade is examined with the presence or not of mistuning. Copyright

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Conference ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition, GT2011
Finamore, D. (Davide), Nitzsche, F, & Gennaretti, M. (Massimo). (2011). Aeroelastic analysis of blades cascades through aerodynamic reduced-order modeling. In Proceedings of the ASME Turbo Expo (pp. 1253–1262). doi:10.1115/GT2011-45505