论文信息 - Wing-flutter calculations with the CAP-TSD unsteady transonic small-disturbance program

Wing-flutter calculations with the CAP-TSD unsteady transonic small-disturbance program

The paper describes the application and assessment of the recently developed CAP-TSD transonic small-disturbance code for flutter predicition. The CAP-TSD program has been developed for aeroelastic analysis of complete aircraft configurations and was previously applied to the calculation of steady and unsteady pressures with favorable results. Flutter calculations are presented for two thin swept-and-tapered wing platforms with well-defined modal properties. The calculations are for Mach numbers from low subsonic to low supersonic values, including the transonic range, and are compared with subsonic linear theory and experimental flutter data. The CAP-TSD flutter results are generally in good agreement with the experimental values and are in good agreement with subsonic linear theory when wing thickness is neglected.

[1] Lakshmi N. Sankar,et al. A technique for the prediction of airfoil flutter characteristics inseparated flow , 1987 .

[2] C. J. Borland,et al. Nonlinear transonic flutter analysis , 1982 .

[3] J. Batina. Efficient algorithm for solution of the unsteady transonic small-disturbance equation , 1988 .

[4] John T. Batina,et al. Calculation of steady and unsteady pressures on wings at supersonic speeds with a transonic small disturbance code , 1991 .

[5] John T. Batina. Unsteady transonic small-disturbance theory including entropy and vorticity effects , 1988 .

[6] John T. Batina,et al. Calculation of steady and unsteady pressures on wings at supersonic speeds with a transonic small disturbance code , 1987 .

[7] Oddvar Bendiksen,et al. Transonic flutter analysis using the Euler equations , 1987 .

[8] John T. Batina,et al. Unsteady transonic algorithm improvements for realistic aircraft applications , 1988 .

[9] John W. Edwards,et al. Computational methods for unsteady transonic flows , 1987 .

[10] John T. Batina,et al. Unsteady Transonic Flow Calculations for Realistic Aircraft Configurations , 1989 .

[11] Robert M. Bennett,et al. Time-marching transonic flutter solutions including angle-of-attack effects , 1983 .