A full three-dimensional lifting surface theory based on the double linearization concept is developed for a rotating annular cascade model operating at axial supersonic velocity. It is assumed that each blade vibrates with infinitesimal displacement amplitude under small mean loading. Vibration modes normal and parallel to the blade chord are considered. Numerical results are presented to investigate the mean loading effects on the aerodynamic instability of the blade motion. It is found that the bending motion can be unstable due to the presence of mean loading. Some numerical results compared with strip theory predictions demonstrate significant three-dimensional effects on the unsteady aerodynamic force.
|Number of pages||8|
|Journal||Transactions of the Japan Society of Mechanical Engineers Series B|
|Publication status||Published - Jan 1 1994|
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanical Engineering