A Method to Assess Flutter Stability of Complex Modes
| Title | A Method to Assess Flutter Stability of Complex Modes |
| Publication Type | Conference Paper |
| Year of Publication | 2003 |
| Authors | Arnone A, Poli F, Schipani C |
| Conference Name | 10th International Symposium on Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines (ISUAAAT) |
| Keywords | aeroelasticity, complex modes, Flutter screening, preliminary design, time-linearized |
| Abstract | A method to quickly predict aeroelastic stability or instability of blade row complex vibration modes is described. The computational approach is based on a time-linearized Navier-Stokes aeroelastic solver, and a specifically developed program. Time is saved by doing a few fundamental solver computations and then superposing the solutions to analyze each complex mode. Test results on two low pressure turbines are presented. |
| Notes | September 7–11, Durham, NC, USA |