论文信息 - Stall-Flutter Analysis

Stall-Flutter Analysis

An analysis of unsteady airfoil stall and stall flutter is presented that is based on a series of approximations. Unsteady aerodynamic characteristics are related theoretically to static aerodynamic characteristics. Preliminary results show good agreement with experimental dynamic stall data. The analysis is applied to determine the boundaries for stall flutter, particularly for the straight wing of one candidate space-shuttle configuration. As formulated, the analysis should provide a conservative estimate - i.e., the predicted stall flutter region is slightly larger than the expected one, as demonstrated by comparison with experiments.

Lars E. Ericsson | J. Peter Reding

[1] L. Ericsson,et al. Dynamic Effects of Shock-Induced Flow Separation , 1975 .

[2] John J. Lucas,et al. Fatigue Strength Improvements in Ti-6Al-4V Forgings , 1972 .

[3] J. P. Reding,et al. Unsteady airfoil stall , 1969 .

[4] L. Ericsson,et al. Dynamic Stall of Helicopter Blades , 1970 .

[5] Robert F. Stengel. Optimal transition from entry to cruising flight , 1970 .

[6] J. P. Reding,et al. Analytic prediction of dynamic stall characteristics. , 1972 .

[7] Lars E. Ericsson,et al. Dynamic Stall Simulation Problems , 1971 .

[8] N. D. Ham,et al. Torsional oscillation of helicopter blades due to stall. , 1966 .

[9] Norman D. Ham. A STALL FLUTTER OF HELICOPTER ROTOR BLADES: A SPECIAL CASE OF THE DYNAMIC STALL PHENOMENON , 1967 .

[10] A. G. Rainey,et al. Progress on the launch-vehicle buffeting problem , 1965 .

[11] Lars E. Ericsson,et al. Unsteady airfoil stall review and extension , 1971 .

[12] H. Schlichting. Boundary Layer Theory , 1955 .

[13] Richard K. Fisher,et al. Rotor High Speed Performance, Theory vs. Test , 1970 .

[14] L. C. Woods. The theory of subsonic plane flow , 1961 .

[15] Franklin O. Carta,et al. Effect of Unsteady Pressure Gradient Reduction on Dynamic Stall Delay , 1971 .

[16] J. P. Reding,et al. Analysis of flow separation effects on the dynamics of a large space booster. , 1965 .

[17] T. Kármán,et al. Airfoil Theory for Non-Uniform Motion , 1938 .