Unsteady Aerodynamic Forces Acting on Vibrating Cascade Blades in a Three-Dimensional Flow Field

Effects of Chordwise Displacement and Nonrigid Section Deformation on Unsteady Aerodynamic Response of Subsonic and Supersonic Oscillating Cascades

“…Furthermore very thin blades in modern turbomachines will undergo vibration with section deformation. Imanari and Kaji (1987) applied the vortex lattice method to calculation of unsteady aerodynamic force on vibrating three-dimensional straight cascade of flat plates in an incompressible flow, and predicted that the flutter velocity for the fifth section deformation mode will be as low as that for the first bending mode. Yang et al (1988) dealt with translational blade motions with chordwise displacement and non-rigid blade motions with section deformation for two-dimensional subsonic cascades by a finite element method.…”