Multi-Frequency Aeroelastic ROM for Transonic Compressors

Multi-Frequency Aeroelastic ROM for Transonic Compressors

Blog Article

The accurate prediction of the aeroelastic behavior of turbomachinery for aircraft propulsion poses a difficult yet fundamental challenge, since modern aircraft engines tend to adopt increasingly slender blades to achieve a higher aerodynamic efficiency, incurring an increased aeroelastic interaction as a drawback.In the present work, we present a reduced order model for flutter prediction in axial compressors.The model exploits the aerodynamic influence coefficients technique with the adoption of a cobra mens fly xl broadband frequency signal to concrete fire table hidden propane tank compute the aerodynamic damping for multiple reduced frequencies using a single training simulation.The normalized aerodynamic work is computed for a single oscillation mode at three different vibration frequencies, comparing the outputs of aerodynamic input/output models trained with a chirp signal to those from single-frequency harmonic simulations.The results demonstrate the ability of the adopted model to accurately and efficiently reproduce the aerodynamic damping at multiple frequencies and arbitrary nodal diameters with a single simulation.