Blade mistuning coupled with shaft flexibility effects in rotor aeroelasticityThe effect of bladed-disk polar dissymmetry, resulting from variations in mass from one blade to another, on aeroelastic stability boundaries for a fan stage is presented. In addition to both in-plane and out-of-plane deformations of the bladed-disk, bending of the supporting shaft in two planes is considered, and the resulting Coriolis forces and gyroscopic moments are included in the analysis. A quasi-steady aerodynamics approach is combined with the Lagrangian method to develop the governing equations of motion for the flexible bladed-disk-shaft assembly. Calculations are performed for an actual fan stage.
Document ID
19900036841
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Khader, Naim (Jordan University of Science and Technology, Irbid, United States)
Loewy, Robert G. (Rensselaer Polytechnic Institute, Troy, NY, United States)